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Adam Joseph Murrietta, MD

Orthopedic Surgery · Stanford

NPI 1558823435

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
9
1 carrier
Office
1

Offices

1 location · Stanford Health Care · 3,152 clinicians in this group

Looking this up.

Hospitals listed: Massachusetts General Hospital · Newton-Wellesley Hospital. That is not proof they admit you there this week.

Plans that list them

9 plans · 1 carrier

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

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

Hospitals they work in

2 hospitals

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

  • Massachusetts General HospitalBoston, MAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Mass General Brigham, which runs 15 hospitals in 2 statesHome of Dana-Farber/Harvard Cancer Center, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 85% would definitely recommend it
    Overall rating: 5 of 5 starsBetter than the national rate — Postoperative hemorrhage or hematoma rate: 1.51 (0.72 to 2.29) · 9,851 cases, Jul 2022 – Jun 2024Better than the national rate — Postoperative respiratory failure rate: 7.3 (5.25 to 9.36) · 5,808 cases, Jul 2022 – Jun 2024Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.614, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.716, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.57, Oct 2024 – Sep 2025Better than the national rate — Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy: 3.8 (3.2 to 4.5) · 3,011 cases, Jan 2024 – Dec 2024Better than the national rate — Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies): 10.1 (8.6 to 11.9) · 10,145 cases, Jan 2022 – Dec 2024Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.8) · 3,940 cases, Jan 2024 – Dec 2024
  • Newton-Wellesley HospitalNewton, MAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Mass General Brigham, which runs 15 hospitals in 2 statesPatients rate it 3 of 5 · 79% would definitely recommend it
    Overall rating: 5 of 5 starsBetter than the national rate — CMS Medicare PSI 90: Patient safety and adverse events composite: 0.67 (0.38 to 0.96), Jul 2022 – Jun 2024Better than the national rate — Clostridium Difficile (C.Diff): 0.387, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.9) · 2,271 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for Massachusetts General Hospital

Behind the star rating — Deaths: 6 better, 2 the same, 0 worse of 8 measures. Safety: 4 better, 4 the same, 0 worse of 8 measures. Readmissions: 5 better, 2 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 Massachusetts General Hospital
Postoperative hemorrhage or hematoma rateComplications and deaths1.51 (0.72 to 2.29) · 9,851 casesBetterJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths7.3 (5.25 to 9.36) · 5,808 casesBetterJul 2022 – Jun 2024
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.614BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.716BetterOct 2024 – Sep 2025
MRSA BacteremiaInfections0.57BetterOct 2024 – Sep 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits3.8 (3.2 to 4.5) · 3,011 casesBetterJan 2024 – Dec 2024
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits10.1 (8.6 to 11.9) · 10,145 casesBetterJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.7 (0.6 to 0.8) · 3,940 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths0.51 (0 to 1.06) · 7,050 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.87 (0.74 to 1)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths190.21 (166.55 to 213.87) · 628 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.5 · 404 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths5.3 · 283 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths9.3 · 449 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths6.8 · 1,447 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths12.9 · 1,254 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths10.1 · 546 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths1.8 · 8,665 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.24 (0.11 to 0.37) · 26,226 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.25 (0.11 to 0.38) · 28,785 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths4.43 (3.42 to 5.45) · 10,723 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.34 (0.58 to 2.1) · 5,984 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths4.13 (2.55 to 5.7) · 5,957 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.47 (0.36 to 2.57) · 2,526 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.52 (0.25 to 0.8) · 25,523 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths5.4 · 206 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections1.024No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.681No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections1.317No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits13.5 · 615 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits19.7 · 1,580 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits21.5 · 620 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits12.7 · 1,711 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits23.1 · 1,288 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.9 · 1,303 casesNoneJul 2023 – Jun 2025
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits10.6 (9.5 to 11.8) · 3,011 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.9 · 211 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits8.8 · 268 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.2 · 335 casesNoneJul 2023 – Jun 2025

What patients said (593 patients answered, 22% of those asked)

Patient survey stars by topic at Massachusetts General Hospital
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at Massachusetts General Hospital
Room was "always" clean72%
Nurses "always" communicated well82%
Doctors "always" communicated well81%
Staff "always" explained65%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge88%
Doctors "always" explained things so they could understand78%
Doctors "always" listened carefully80%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)78%
Staff "always" explained new medications78%
Nurses "always" explained things so they could understand78%
Nurses "always" listened carefully81%
Nurses "always" treated them with courtesy and respect88%
"Always" quiet at night44%
"YES", patients would definitely recommend the hospital85%
Staff "always" explained possible side effects52%
Yes, staff "did" give patients information about possible symptoms90%
See every measure and the patient survey for Newton-Wellesley Hospital

Behind the star rating — Deaths: 3 better, 4 the same, 0 worse of 7 measures. Safety: 3 better, 4 the same, 0 worse of 7 measures. Readmissions: 1 better, 8 the same, 0 worse of 9 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Newton-Wellesley Hospital
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.67 (0.38 to 0.96)BetterJul 2022 – Jun 2024
Clostridium Difficile (C.Diff)Infections0.387BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.7 (0.6 to 0.9) · 2,271 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths0.89 (0 to 1.77) · 2,111 casesNo differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths144.57 (88.9 to 200.25) · 62 casesNo differentJul 2022 – Jun 2024
Death rate for COPD patientsComplications and deaths7.5 · 179 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10.9 · 81 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths8.1 · 1,073 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths11.9 · 915 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths8.2 · 250 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2 · 4,630 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.13 (0 to 0.31) · 12,256 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.31 (0.13 to 0.49) · 12,146 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths2.67 (0.84 to 4.5) · 2,407 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.41 (0 to 3) · 1,431 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.21 (0.8 to 3.62) · 2,330 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths4.7 (0 to 11) · 1,382 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths4.12 (0.82 to 7.42) · 1,361 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.58 (0.13 to 3.03) · 670 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.28 (0 to 0.88) · 9,733 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.3 · 322 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections1.062No differentOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.676No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.535No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.316No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits13.8 · 29 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20.4 · 1,081 casesNoneJul 2023 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits6.8 · 1,196 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits14.1 · 986 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits18.6 · 920 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits4.6 (3.1 to 6.6) · 235 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits10.9 (8.3 to 14.1) · 235 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.7 · 305 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.8 · 196 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.1 (9.8 to 14.9) · 4,203 casesNo differentJan 2022 – Dec 2024

What patients said (644 patients answered, 24% of those asked)

Patient survey stars by topic at Newton-Wellesley Hospital
Cleanliness3
Nurse communication4
Doctor communication4
Communication about medicines2
Discharge information4
Overall hospital rating4
Quietness1
Recommend hospital5
Share of patients giving the best answer at Newton-Wellesley Hospital
Room was "always" clean64%
Nurses "always" communicated well80%
Doctors "always" communicated well81%
Staff "always" explained58%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge88%
Doctors "always" explained things so they could understand77%
Doctors "always" listened carefully79%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)71%
Staff "always" explained new medications74%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully77%
Nurses "always" treated them with courtesy and respect87%
"Always" quiet at night44%
"YES", patients would definitely recommend the hospital79%
Staff "always" explained possible side effects43%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$12,906

Medicare paid this office $12,906 for 68 people.

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

Largest Original Medicare bills
Replacement of thigh bone and hip joint with prosthesis30$5,259$175
Replacement of knee joint, both sides of knee23$4,043$176

Procedures Medicare counted

Procedure volume Medicare published
Hip replacement36More than 80% of doctors who do this
Knee replacement54More than 81% of doctors who do this
Lower limb (leg) arthroscopy (minimally invasive joint repair)1-10None

Who their Medicare patients are

68 Original Medicare patients in 2024. Average age 74 · Women 60% · Health risk score 0.97. At or below the middle of the specialty; the typical orthopedic surgery clinician is at 1.13.

Conditions among them: High blood pressure 72% · Depression 25% · Coronary heart disease 24% · Chronic kidney disease 21% · Cancer 21% · Atrial fibrillation 21% · Heart failure 18%.

The office billed $138,467, Medicare allowed $16,199 and paid $12,906; for 69 services of 13 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.

Drugs they prescribed that Part D paid

$228

Pharmacies billed $228 in 2024.

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

Opioids were 33% of their Part D prescriptions (24 of 72) in 2024. Above the middle of the specialty; the typical orthopedic surgery clinician is at 31%.

71 generic and fewer than 11 brand-name prescriptions · $228 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
Oxycodone19$84$4
Naproxen14$44$3
Omeprazole11$18$2

Year by year

Part D prescribing by year
2024723333% (24)None$228
2023413154% (22)0%$337
2022523750% (26)None$9,137
20212514NoneNone$3,676

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

See the drugs prescribed each year

2023: 1 drug

Part D drugs prescribed in 2023
Oxycodone17$98$6

2022: 1 drug

Part D drugs prescribed in 2022
Oxycodone22$160$7

Money from drug and device companies

$6,495 in 2025

Industry payments by year
2025418None$6,495
2024711None$4,697
202323None$151
202112None$1,225

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
Smith+NephewJourney II$5,844
12 payments
  • Meals for K-15 Pork · 2025-06-06 · $38
  • Travel for Polarstem · 2025-04-25 · $605
  • Meals for Journey II · 2025-04-25 · $140
  • Meals for Journey II · 2025-04-24 · $163
  • Meals for Journey II · 2025-04-24 · $195
  • Travel for Polarstem · 2025-04-23 · $249
  • Travel for Journey II · 2025-04-23 · $826
  • Travel for Journey II · 2025-04-23 · $69
  • Meals for Redapt · 2025-03-09 · $26
  • Meals for Real Intelligence · 2025-03-08 · $13
  • Meals for Real Intelligence · 2025-03-08 · $18
  • Grant · 2025-01-21 · $3,500
StrykerMako$331
3 payments
  • Meals for Mako · 2025-07-25 · $169
  • Meals for Mako · 2025-05-22 · $137
  • Meals for Mako · 2025-05-14 · $26
Zimmer Biomet HoldingsRosa$289
2 payments
  • Meals for Rosa · 2025-10-06 · $145
  • Meals for Persona · 2025-10-06 · $145
MicroPort OrthopedicsMpo Medial Pivot Knee$30
1 payment
  • Meals for Mpo Medial Pivot Knee · 2025-01-24 · $30
See all 18 published payments
Every published payment
Zimmer Biomet HoldingsMeals · 2025-10-06Rosa$145
Zimmer Biomet HoldingsMeals · 2025-10-06Persona$145
StrykerMeals · 2025-07-25Mako$169
Smith+NephewMeals · 2025-06-06K-15 Pork$38
StrykerMeals · 2025-05-22Mako$137
StrykerMeals · 2025-05-14Mako$26
Smith+NephewTravel · 2025-04-25Polarstem$605
Smith+NephewMeals · 2025-04-25Journey II$140
Smith+NephewMeals · 2025-04-24Journey II$163
Smith+NephewMeals · 2025-04-24Journey II$195
Smith+NephewTravel · 2025-04-23Polarstem$249
Smith+NephewTravel · 2025-04-23Journey II$826
Smith+NephewTravel · 2025-04-23Journey II$69
Smith+NephewMeals · 2025-03-09Redapt$26
Smith+NephewMeals · 2025-03-08Real Intelligence$13
Smith+NephewMeals · 2025-03-08Real Intelligence$18
MicroPort OrthopedicsMeals · 2025-01-24Mpo Medial Pivot Knee$30
Smith+NephewGrant · 2025-01-21None$3,500
See earlier years (2024, 2023, 2021)

2024: $4,697

Payments by company in 2024
Smith+NephewJourney II$3,553
2 payments
  • Meals for Journey II · 2024-08-15 · $53
  • Grant · 2024-06-07 · $3,500
StrykerNa$624
4 payments
  • Meals for Na · 2024-09-30 · $172
  • Meals for Mako · 2024-09-18 · $140
  • Meals for Gamma · 2024-06-18 · $164
  • Meals for Na · 2024-02-15 · $148
OrthalignOrthalign Plus$159
1 payment
  • Meals for Orthalign Plus · 2024-12-11 · $159
DavolArista Ah Flexitip$144
1 payment
  • Meals for Arista Ah Flexitip · 2024-12-09 · $144
Globus MedicalCorridor$98
1 payment
  • Meals for Corridor · 2024-04-18 · $98
DePuy Synthes SalesNa$85
1 payment
  • Meals for Na · 2024-01-08 · $85
Zimmer Biomet HoldingsRosa$34
1 payment
  • Meals for Rosa · 2024-11-13 · $34

2023: $151

Payments by company in 2023
Kci USANone$133
2 payments
  • Meals · 2023-08-07 · $106
  • Meals · 2023-07-13 · $27
Evolution SurgicalNone$18
1 payment
  • Meals · 2023-09-06 · $18

2021: $1,225

Payments by company in 2021
Evolution SurgicalNone$1,225
2 payments
  • Meals · 2021-09-15 · $25
  • Education · 2021-09-15 · $1,200

Professional record

NPI
1558823435
Video visits
Lists video visits
Gender
Male
More record details
Sole proprietor
No
Taxonomy
Orthopedic surgery (207X00000X); Federal specialty code 207XS0114X (207XS0114X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2019-04-01
NPI last updated
2025-09-03
NPI record certified
2025-09-03

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

Extra NPI addresses: 55 Fruit St, Boston, MA, 02114