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Adam Simons, MD

Internal Medicine · Palo Alto

NPI 1588892210

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Offices
3
Since medical school
17 years
University of California, Davis School of Medicine, 2009

Offices

3 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Looking this up.

Hospitals listed: California Pacific Medical Center- Van Ness Campus. That is not proof they admit you there this week.

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Simons’s office to ask if they take your plan before you enroll.

California Medical Board record

Licence A127652 · Current

Licensed to practise in California · since 2013 · expires 2027-01-31 · University of California, Davis School of Medicine.

Matched on the licence number without its letter prefix; check the name before relying on it.

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

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.

  • California Pacific Medical Center- Van Ness CampusSan Francisco, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Sutter Health, which runs 27 hospitals in 2 statesPatients rate it 4 of 5 · 78% would definitely recommend it
    Overall rating: 3 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.224, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.325, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.373, Oct 2024 – Sep 2025
See every measure and the patient survey for California Pacific Medical Center- Van Ness Campus

Behind the star rating — Deaths: 0 better, 8 the same, 0 worse of 8 measures. Safety: 1 better, 6 the same, 0 worse of 7 measures. Readmissions: 0 better, 8 the same, 2 worse of 10 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at California Pacific Medical Center- Van Ness Campus
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.224BetterOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.325BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.373BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.14 (0.3 to 1.97) · 2,271 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.05 (0.81 to 1.28)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths192.86 (151.51 to 234.22) · 140 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths2.6 · 55 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths10.3 · 60 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10.5 · 143 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths9.8 · 356 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths14.3 · 259 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths10.1 · 173 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths3.1 · 2,316 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.31 (0.12 to 0.49) · 6,430 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.28 (0.09 to 0.47) · 7,168 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths3.3 (1.5 to 5.09) · 2,196 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths2.47 (1.21 to 3.74) · 925 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.63 (1.37 to 3.88) · 1,954 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths10.13 (6.06 to 14.2) · 1,112 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths7.26 (4.67 to 9.85) · 1,084 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.67 (0.31 to 3.03) · 832 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.33 (0 to 0.85) · 5,406 casesNo differentJul 2022 – Jun 2024
MRSA BacteremiaInfections0.443No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections1.717No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.3 · 200 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits22.3 · 449 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits18.2 · 187 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits8.7 · 418 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits7.1 · 260 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits19.2 · 293 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.2 (3.6 to 7.6) · 157 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits10.2 (7.7 to 13.5) · 157 casesNo differentJan 2024 – Dec 2024
Rate of readmission for CABGUnplanned return visits11 · 33 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20.2 · 66 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.5 (9.4 to 16.7) · 551 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.9 (0.7 to 1.3) · 219 casesNo differentJan 2024 – Dec 2024

What patients said (478 patients answered, 20% of those asked)

Patient survey stars by topic at California Pacific Medical Center- Van Ness Campus
Cleanliness4
Nurse communication3
Doctor communication3
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness3
Recommend hospital5
Share of patients giving the best answer at California Pacific Medical Center- Van Ness Campus
Room was "always" clean75%
Nurses "always" communicated well74%
Doctors "always" communicated well77%
Staff "always" explained59%
Yes, staff "did" give patients this information88%
Yes, staff "did" give patients information about help after discharge88%
Doctors "always" explained things so they could understand71%
Doctors "always" listened carefully75%
Doctors "always" treated them with courtesy and respect85%
Patients who gave a rating of "9" or "10" (high)75%
Staff "always" explained new medications75%
Nurses "always" explained things so they could understand70%
Nurses "always" listened carefully71%
Nurses "always" treated them with courtesy and respect82%
"Always" quiet at night53%
"YES", patients would definitely recommend the hospital78%
Staff "always" explained possible side effects44%
Yes, staff "did" give patients information about possible symptoms88%

Original Medicare doctor bills

$123,176

Medicare paid this office $123,176 for 315 people.

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

Largest Original Medicare bills
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes202$86,755$103
Hospital discharge day management, more than 30 minutes170$18,281$103
Initial hospital care with moderate level of medical decision making at least 75 minutes107$16,462$152
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes11$1,275$116

Who their Medicare patients are

315 Original Medicare patients in 2024. Average age 73 · Under 65 12% · 85 and older 10% · Women 45% · Also on Medicaid 31% · Health risk score 2.54. Above the middle of the specialty; the typical internal medicine clinician is at 1.76.

Conditions among them: High blood pressure 75% · Coronary heart disease 54% · Chronic kidney disease 50% · Atrial fibrillation 49% · Diabetes 45% · Heart failure 43% · Depression 33% · Cancer 26% · COPD 25% · Dementia 13% · Stroke 13%.

The office billed $456,528, Medicare allowed $156,593 and paid $123,176; for 1,140 services of 6 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
20243151,140732.54$456,528$123,176
2023253781722.70$313,591$86,315
2022272771732.20$313,773$80,184
2021301831722.60$319,125$85,124
2020270731722.64$322,021$76,788
2019280856692.96$365,475$84,751
2018274893702.68$371,115$86,716
2017239760682.74$319,470$75,116
2016285960692.78$407,691$96,597
2015263809692.90$343,121$80,930
2014254828682.19$349,092$81,319
2013140148662.79$53,346$19,679

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: 3 services

Original Medicare services billed in 2023
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes171$60,890$106
Hospital discharge day management, more than 30 minutes120$12,939$104
Initial hospital care with moderate level of medical decision making at least 75 minutes71$11,116$154

2022: 5 services

Original Medicare services billed in 2022
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes153$46,671$92
Initial hospital care with moderate level of medical decision making at least 75 minutes86$15,800$176
Hospital discharge day management, more than 30 minutes97$9,792$95
Initial hospital observation care per day, typically 70 minutes29$4,371$151
Hospital observation care on day of discharge20$1,208$60

2021: 7 services

Original Medicare services billed in 2021
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes179$50,333$93
Initial hospital care with moderate level of medical decision making at least 75 minutes70$13,049$179
Hospital discharge day management, more than 30 minutes119$12,662$97
Initial hospital observation care per day, typically 70 minutes19$2,952$155
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes16$1,961$123
Hospital observation care on day of discharge28$1,791$64
Initial hospital observation care per day, typically 50 minutes11$1,331$121

2020: 5 services

Original Medicare services billed in 2020
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes158$46,892$95
Initial hospital care with moderate level of medical decision making at least 75 minutes67$12,630$186
Hospital discharge day management, more than 30 minutes101$10,478$100
Initial hospital observation care per day, typically 70 minutes13$2,215$170
Hospital observation care on day of discharge28$1,868$67

2019: 5 services

Original Medicare services billed in 2019
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes189$57,684$93
Hospital discharge day management, more than 30 minutes123$13,448$97
Initial hospital care with moderate level of medical decision making at least 75 minutes43$8,240$179
Initial hospital observation care per day, typically 50 minutes11$1,224$111
Hospital observation care on day of discharge18$1,206$67

2018: 4 services

Original Medicare services billed in 2018
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes205$61,217$91
Hospital discharge day management, more than 30 minutes127$13,319$97
Initial hospital care with moderate level of medical decision making at least 75 minutes44$8,424$175
Hospital observation care on day of discharge14$793$57

2017: 4 services

Original Medicare services billed in 2017
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes176$52,882$93
Hospital discharge day management, more than 30 minutes109$11,172$98
Initial hospital care with moderate level of medical decision making at least 75 minutes38$6,875$176
Hospital observation care on day of discharge12$795$66

2016: 5 services

Original Medicare services billed in 2016
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes198$64,012$93
Initial hospital care with moderate level of medical decision making at least 75 minutes71$13,182$181
Hospital discharge day management, more than 30 minutes123$12,943$97
Initial hospital observation care per day, typically 70 minutes13$2,161$166
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes13$1,164$65

2015: 4 services

Original Medicare services billed in 2015
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes186$55,664$93
Hospital discharge day management, more than 30 minutes112$11,535$98
Initial hospital care with moderate level of medical decision making at least 75 minutes51$9,889$180
Hospital observation care on day of discharge13$759$58

2014: 5 services

Original Medicare services billed in 2014
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes194$55,031$93
Hospital discharge day management, more than 30 minutes106$10,975$97
Initial hospital care with moderate level of medical decision making at least 75 minutes37$7,467$178
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes13$1,158$64
Hospital observation care on day of discharge11$788$66

2013: 2 services

Original Medicare services billed in 2013
Initial hospital care with moderate level of medical decision making at least 75 minutes66$10,846$159
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes49$5,444$111

Medicaid work

$23,622 in 2024

Medicaid paid $23,622 for 486 billed services this clinician did in 2024, up to 24 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
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES458$21,906
Hospital inpatient or observation discharge day management; more than 30 minutes on the date of the encounter28$1,715
Medicaid work by year
2024486224$23,622
2023363320$19,187
2022285220$14,897
2021217117$11,058
2020281322$12,826
2019135215$7,549
2018223120$10,929
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES321$15,919
1ST HOSP IP/OBS HIGH 7515$1,751
Hospital inpatient or observation discharge day management; more than 30 minutes on the date of the encounter27$1,517

2022

Largest Medicaid services in 2022
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES270$13,658
Hospital inpatient or observation discharge day management; more than 30 minutes on the date of the encounter15$1,239

2021

Largest Medicaid services in 2021
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES217$11,058

2020

Largest Medicaid services in 2020
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES252$11,321
1ST HOSP IP/OBS HIGH 7513$972
Hospital inpatient or observation discharge day management; more than 30 minutes on the date of the encounter16$532

2019

Largest Medicaid services in 2019
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES121$6,815
Hospital inpatient or observation discharge day management; more than 30 minutes on the date of the encounter14$734

2018

Largest Medicaid services in 2018
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES223$10,929

Drugs they prescribed that Part D paid

$65,032

Pharmacies billed $65,032 in 2024.

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

Opioids were 11% of their Part D prescriptions (45 of 405) in 2024. A higher opioid share than 9 in 10 peers; the typical internal medicine clinician is at 1%.

340 generic and fewer than 11 brand-name prescriptions · $65,032 in drug cost · 71 antibiotic prescriptions to 40 people.

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
Eliquis17$9,751$574
Amiodarone17$411$24
Oxycodone13$174$13
Pantoprazole21$157$7
Hydrocodone-Acetaminophen15$154$10
See all 11 drugs
Every Part D drug this clinician prescribed
Eliquis17$9,751$574
Amiodarone17$411$24
Oxycodone13$174$13
Pantoprazole21$157$7
Hydrocodone-Acetaminophen15$154$10
Ciprofloxacin21$90$4
Potassium Chloride11$59$5
Furosemide19$58$3
Sulfamethoxazole-Trimethoprim11$55$5
Tramadol14$33$2
Metoprolol11$22$2

Year by year

Part D prescribing by year
202440513711% (45)None$65,032
20231928814% (27)11%$30,394
202228611012% (35)13%$34,550
20214371176% (26)None$74,733
20203751004% (14)None$94,910
20194241097% (30)16%$45,580
20184541016% (25)None$43,273
2017396909% (36)None$33,796
201649111210% (49)None$38,827
2015298786% (17)None$33,562
20142067013% (27)None$23,869

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

See the drugs prescribed each year

2023: 3 drugs

Part D drugs prescribed in 2023
Ciprofloxacin13$129$10
Pantoprazole12$118$10
Furosemide14$102$7

2022: 5 drugs

Part D drugs prescribed in 2022
Pantoprazole21$201$10
Hydrocodone-Acetaminophen13$113$9
Ciprofloxacin12$73$6
Metoprolol19$61$3
Furosemide18$43$2

2021: 12 drugs

Part D drugs prescribed in 2021
Eliquis22$11,710$532
Januvia12$7,945$662
Valganciclovir15$2,200$147
Lactulose11$488$44
Pantoprazole32$374$12
Ondansetron Odt11$173$16
Pravastatin12$168$14
Spironolactone11$109$10
Sertraline13$91$7
Ciprofloxacin14$79$6
Hydrocodone-Acetaminophen11$62$6
Furosemide20$59$3

2020: 8 drugs

Part D drugs prescribed in 2020
Xifaxan27$72,250$2,676
Eliquis11$6,233$567
Lactulose17$679$40
Spironolactone27$642$24
Furosemide41$234$6
Atorvastatin13$158$12
Pantoprazole18$139$8
Ciprofloxacin21$129$6

2019: 8 drugs

Part D drugs prescribed in 2019
Xifaxan11$19,217$1,747
Bumetanide23$1,914$83
Spironolactone35$810$23
Lactulose22$555$25
Ciprofloxacin25$302$12
Furosemide28$269$10
Pantoprazole23$251$11
Metoprolol12$172$14

2018: 12 drugs

Part D drugs prescribed in 2018
Ursodiol13$3,821$294
Amiodarone14$1,095$78
Atorvastatin20$267$13
Pantoprazole23$188$8
Potassium Chloride16$172$11
Furosemide33$158$5
Metoclopramide12$150$12
Spironolactone11$137$12
Lisinopril15$86$6
Famotidine13$81$6
Ciprofloxacin13$73$6
Metoprolol18$72$4

2017: 9 drugs

Part D drugs prescribed in 2017
Clinisol23$5,629$245
Polyethylene Glycol 335013$963$74
Spironolactone14$259$19
Pantoprazole19$227$12
Tamsulosin12$139$12
Ciprofloxacin19$112$6
Hydrocodone-Acetaminophen12$88$7
Furosemide20$62$3
Metoprolol11$32$3

2016: 10 drugs

Part D drugs prescribed in 2016
Polyethylene Glycol 335023$983$43
Lactulose13$342$26
Pantoprazole32$286$9
Hydrocodone-Acetaminophen21$280$13
Spironolactone18$227$13
Ciprofloxacin23$184$8
Furosemide39$102$3
Carvedilol11$69$6
Amlodipine Besylate12$60$5
Metoprolol16$52$3

2015: 5 drugs

Part D drugs prescribed in 2015
Pantoprazole34$522$15
Spironolactone14$193$14
Ciprofloxacin14$96$7
Famotidine12$86$7
Furosemide19$80$4

2014: 4 drugs

Part D drugs prescribed in 2014
Polyethylene Glycol 335013$545$42
Pantoprazole19$204$11
Hydrocodone-Acetaminophen14$175$13
Ciprofloxacin15$100$7

Money from drug and device companies

$171 in 2025

A payment is not proof that care is biased.

Payments by company
Biotronik NroProspera$171
1 payment
  • Meals for Prospera · 2025-05-14 · $171
See the published payment
Every published payment
Biotronik NroMeals · 2025-05-14Prospera$171

Professional record

NPI
1588892210
Licence
CA 127652California A127652: Current · expires 2027-01-31
Trained
University of California, Davis School of Medicine, 2009 · 17 years ago
Gender
Male
More record details
Sole proprietor
No
Taxonomy
Hospitalist (208M00000X); Student in a training program (390200000X)
Mailing address
2351 Clay St, Suite 308, San Francisco, CA, 94115
NPI first listed
2009-07-01
NPI last updated
2014-09-04

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