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Damanpreet Kaur Grewal, MD

Internal Medicine · Stanford

NPI 1275843765

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
10
2 carriers
Offices
3

Offices

3 locations · Stanford Health Care · 3,152 clinicians in this group

Looking this up.

Hospitals listed: Stanford Health Care. That is not proof they admit you there this week.

Plans that list them

10 plans · 2 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Grewal’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

10 of 10 plans

Plans whose provider directory lists this clinician
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A133855 · Current

Licensed to practise in California · since 2014 · expires 2026-11-30 · St. George'S University School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
76.5 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Hospitals they work in

1 hospital

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

  • Stanford Health CareStanford, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency departmentPart of Stanford Health Care, which runs 3 hospitalsHome of Stanford Cancer Institute, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 83% would definitely recommend it
    Overall rating: 5 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 5.31 (4.24 to 6.37) · 8,661 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 14.1 (12.7 to 15.7) · 2,191 cases, Jan 2024 – Dec 2024Better than the national rate — Postoperative respiratory failure rate: 4.08 (1.95 to 6.21) · 5,296 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.317, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.446, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.241, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.9) · 3,348 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for Stanford Health Care

Behind the star rating — Deaths: 5 better, 3 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 2 better, 5 the same, 4 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Stanford Health Care
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths5.31 (4.24 to 6.37) · 8,661 casesWorseJul 2022 – Jun 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits14.1 (12.7 to 15.7) · 2,191 casesWorseJan 2024 – Dec 2024
Postoperative respiratory failure rateComplications and deaths4.08 (1.95 to 6.21) · 5,296 casesBetterJul 2022 – Jun 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.317BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.446BetterOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.241BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.7 (0.6 to 0.9) · 3,348 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.06 (0.45 to 1.67) · 5,374 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.86 (0.72 to 1)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths166.09 (137.88 to 194.3) · 470 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.1 · 192 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths6.4 · 146 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths9.7 · 253 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths6.3 · 880 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths10.3 · 935 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths8.7 · 501 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.1 · 7,730 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.13 (0 to 0.27) · 20,799 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.28 (0.14 to 0.43) · 23,182 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths0.94 (0.2 to 1.68) · 5,694 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.36 (1.54 to 3.19) · 7,846 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.2 (3.76 to 6.64) · 5,603 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.38 (0.23 to 2.53) · 2,211 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.52 (0.21 to 0.83) · 19,915 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.6 · 416 casesNoneApr 2023 – Mar 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.869No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.857No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.368No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits16.2 · 247 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20.5 · 1,021 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits47.8 · 258 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-1.6 · 990 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits20.8 · 976 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.5 · 959 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.2 (4.4 to 6.2) · 2,191 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.1 · 425 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits9.6 · 158 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.6 · 183 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.7 (10.4 to 15.4) · 4,578 casesNo differentJan 2022 – Dec 2024

What patients said (6,810 patients answered, 25% of those asked)

Patient survey stars by topic at Stanford Health Care
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at Stanford Health Care
Room was "always" clean75%
Nurses "always" communicated well82%
Doctors "always" communicated well81%
Staff "always" explained63%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge89%
Doctors "always" explained things so they could understand76%
Doctors "always" listened carefully80%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)79%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully79%
Nurses "always" treated them with courtesy and respect88%
"Always" quiet at night53%
"YES", patients would definitely recommend the hospital83%
Staff "always" explained possible side effects50%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$13,321

Medicare paid this office $13,321 for 77 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
New patient visit (60+ min)31$5,535$179
Long return visit (40+ min)32$4,797$137

Procedures Medicare counted

Procedure volume Medicare published
Colonoscopy12More than 42% of doctors who do this
Upper gastrointestinal (GI) endoscopy for acid reflux32More than 57% of doctors who do this

Who their Medicare patients are

77 Original Medicare patients in 2024. Average age 71 · Women 69% · Also on Medicaid 34% · Health risk score 1.51. At or below the middle of the specialty; the typical internal medicine clinician is at 1.76.

Conditions among them: High blood pressure 60% · Coronary heart disease 25% · Cancer 21% · Diabetes 18% · Depression 17%.

The office billed $96,507, Medicare allowed $19,340 and paid $13,321; for 99 services of 12 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare by year
20247799711.51$96,507$13,321
2023237430712.00$360,102$48,201
2022238393721.96$316,944$40,491
2021292512701.96$399,979$58,294
2020234452702.09$320,664$42,464
2019235474711.66$285,093$42,885
2018141224721.75$125,925$23,343
201797161691.58$113,608$19,910
20164350701.71$29,693$4,297
201388210702.96$32,971$9,131

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

See the services billed each year

2023: 9 services

Original Medicare services billed in 2023
Long return visit (40+ min)91$13,235$115
New patient visit (60+ min)71$9,694$137
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes32$4,185$120
Initial hospital care with moderate level of medical decision making at least 75 minutes13$2,079$160
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope22$1,945$88
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope16$1,755$110
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes15$1,600$73
Biopsy of large bowel using a flexible endoscope13$1,402$108
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito17$86$5

2022: 11 services

Original Medicare services billed in 2022
Long return visit (40+ min)57$7,754$123
New patient visit (60+ min)44$6,055$138
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes33$4,160$122
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes21$3,536$93
New patient visit (45+ min)31$2,920$94
Return visit (30+ min)29$2,444$81
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope17$1,682$99
Biopsy of large bowel using a flexible endoscope12$1,344$112
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope12$1,192$99
Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes17$469$28
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito26$123$5

2021: 12 services

Original Medicare services billed in 2021
Long return visit (40+ min)58$9,221$132
New patient visit (60+ min)42$7,185$171
New patient visit (45+ min)63$7,084$112
Return visit (30+ min)60$5,862$86
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes28$5,680$96
Initial hospital care with moderate level of medical decision making at least 75 minutes24$4,441$185
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes32$4,009$125
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope18$1,719$96
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope12$1,502$116
Biopsy of large bowel using a flexible endoscope13$1,373$106
Short return visit (20+ min)14$932$58
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito14$62$4

2020: 12 services

Original Medicare services billed in 2020
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes42$5,493$128
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes23$4,965$97
Long return visit (40+ min)39$4,160$101
New patient visit (60+ min)20$2,758$138
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope20$2,531$115
Return visit (30+ min)31$2,268$63
Initial hospital care with moderate level of medical decision making at least 75 minutes11$2,115$192
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope18$1,866$104
New patient visit (45+ min)17$1,776$104
Short return visit (20+ min)33$1,587$45
New patient visit (30+ min)20$1,387$69
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito22$104$5

2019: 11 services

Original Medicare services billed in 2019
Long return visit (40+ min)61$6,908$96
New patient visit (60+ min)38$5,210$137
Biopsy of large bowel using a flexible endoscope23$3,752$163
Return visit (30+ min)46$3,429$61
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes26$3,218$124
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope27$3,097$100
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes15$2,830$94
New patient visit (45+ min)23$1,817$79
Short return visit (20+ min)28$1,194$41
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito30$126$4
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito11$54$5

2018: 5 services

Original Medicare services billed in 2018
Long return visit (40+ min)31$4,463$117
New patient visit (60+ min)21$3,549$169
New patient visit (45+ min)29$3,342$115
Return visit (30+ min)30$2,690$75
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito13$62$4

2017: 5 services

Original Medicare services billed in 2017
New patient visit (60+ min)33$5,320$161
Long return visit (40+ min)32$4,612$118
Biopsy of large bowel using a flexible endoscope13$2,181$168
Long return visit (40+ min)12$1,295$100
Return visit (30+ min)12$1,269$85

2016: 1 service

Original Medicare services billed in 2016
New patient visit (30+ min)21$1,424$68

2013: 3 services

Original Medicare services billed in 2013
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes32$3,180$29
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes28$2,952$53
Initial hospital observation care per day, typically 50 minutes11$942$86

Medicaid work

$9,994 in 2024

Medicaid paid $9,994 for 93 billed services this clinician did in 2024, up to 21 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

Largest Medicaid services in 2024
Long return visit (40+ min)66$7,769
Return visit (30+ min)27$2,225
Medicaid work by year
202493221$9,994
2023159419$10,676
202237219$3,307
2021131522$16,967
202016116$2,490
201973224$9,829
201825213$1,626
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Long return visit (40+ min)111$7,525
New patient visit (60+ min)24$2,046
Prolonged outpatient evaluation and management service(s) time with or without direct patient contact beyond the required time of the primary service when the primary service level has been selected using total time, each 15 minutes of total time (List separately in addition to the code of the outpatient Evaluation and Management service)12$737
1ST HOSPITAL IP/OBS CARE MODERATE MDM 55 MINUTES12$368

2022

Largest Medicaid services in 2022
OFF/OP CNSLTJ NEW/EST MOD 4018$2,380
Long return visit (40+ min)19$927

2021

Largest Medicaid services in 2021
OFF/OP CNSLTJ NEW/EST MOD 4064$8,475
OFFICE/OP CONSLTJ NEW/EST PT HIGH MDM 55 MINUTES22$3,559
Upper gastrointestinal endoscopy with biopsy14$2,733
OFFICE/OP CONSLTJ NEW/EST PT LOW MDM 30 MINUTES13$1,291
Long return visit (40+ min)18$909

2020

Largest Medicaid services in 2020
OFFICE/OP CONSLTJ NEW/EST PT HIGH MDM 55 MINUTES16$2,490

2019

Largest Medicaid services in 2019
OFFICE/OP CONSLTJ NEW/EST PT HIGH MDM 55 MINUTES60$9,300
TISSUE EXAM BY PATHOLOGIST13$529

2018

Largest Medicaid services in 2018
OFF/OP CNSLTJ NEW/EST MOD 4013$1,556
Injection, midazolam hydrochloride, per 1 mg12$71

Drugs they prescribed that Part D paid

$65,095

Pharmacies billed $65,095 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their Part D prescriptions (0 of 138) in 2024. At or below the middle of the specialty; the typical internal medicine clinician is at 1%.

94 generic and 44 brand-name prescriptions · $65,095 in drug cost.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Largest Part D drug costs
Linzess13$12,689$976
Esomeprazole Magnesium17$764$45
Omeprazole23$549$24
Famotidine12$119$10

Year by year

Part D prescribing by year
2024138590% (0)32%$65,095
20232751070% (0)None$92,232
20222791060% (0)23%$53,830
20213121180% (0)27%$69,243
2020254920% (0)25%$52,401
20192641110% (0)None$54,000
2018179690% (0)26%$33,889
2017110420% (0)19%$6,656
20162617NoneNone$752
201515None0% (0)None$2,793
201469220% (0)54%$18,610
20134921NoneNone$1,287

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 7 drugs

Part D drugs prescribed in 2023
Linzess34$35,666$1,049
Omeprazole57$1,437$25
Peg 3350-Electrolyte29$641$22
Famotidine26$554$21
Sucralfate11$527$48
Pantoprazole23$367$16
Gavilyte-G18$367$20

2022: 7 drugs

Part D drugs prescribed in 2022
Linzess25$14,428$577
Lubiprostone14$5,619$401
Omeprazole71$1,180$17
Sucralfate14$804$57
Famotidine37$656$18
Peg 3350-Electrolyte25$596$24
Pantoprazole23$242$11

2021: 7 drugs

Part D drugs prescribed in 2021
Linzess21$14,394$685
Omeprazole96$1,902$20
Sucralfate16$1,448$90
Esomeprazole Magnesium15$1,249$83
Famotidine40$574$14
Pantoprazole21$471$22
Peg 3350-Electrolyte25$446$18

2020: 9 drugs

Part D drugs prescribed in 2020
Linzess15$8,667$578
Amitiza11$5,101$464
Esomeprazole Magnesium29$1,632$56
Sucralfate12$751$63
Omeprazole50$498$10
Pantoprazole22$375$17
Gavilyte-G15$217$14
Famotidine22$142$6
Amitriptyline11$89$8

2019: 9 drugs

Part D drugs prescribed in 2019
Creon15$27,262$1,817
Linzess11$8,082$735
Amitiza13$7,274$560
Esomeprazole Magnesium24$1,186$49
Pantoprazole44$446$10
Sucralfate20$444$22
Gavilyte-G25$344$14
Gavilyte-N15$224$15
Omeprazole14$99$7

2018: 5 drugs

Part D drugs prescribed in 2018
Amitiza11$6,305$573
Pantoprazole36$612$17
Gavilyte-G17$233$14
Dicyclomine15$181$12
Ranitidine21$157$7

2017: 3 drugs

Part D drugs prescribed in 2017
Pantoprazole22$207$9
Ranitidine17$108$6
Omeprazole15$90$6

2014: 1 drug

Part D drugs prescribed in 2014
Nexium18$6,533$363

Money from drug and device companies

$29 in 2025

Industry payments by year
202511None$29
201913None$100

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Payments by company
Mauna Kea TechnologiesNone$29
1 payment
  • Meals · 2025-07-21 · $29
See the published payment
Every published payment
Mauna Kea TechnologiesMeals · 2025-07-21None$29
See earlier years (2019)

2019: $100

Payments by company in 2019
Janssen BiotechStelara$100
3 payments
  • Meals for Stelara · 2019-08-20 · $38
  • Meals for Stelara · 2019-02-14 · $31
  • Meals for Stelara · 2019-01-10 · $32

Professional record

NPI
1275843765
Licence
CA A133855, PA MD446879California A133855: Current · expires 2026-11-30
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207RG0100X (207RG0100X); Federal specialty code 207QB0002X (207QB0002X); Internal medicine (207R00000X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2010-10-18
NPI last updated
2024-04-26
NPI record certified
2024-04-26

This is when the NPI record was last certified, not a medical board exam.