Sonia Shah, MD | UniHealth

Offices

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

Looking this up.

Hospitals listed: Mills-Peninsula Medical Center. 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. Shah’s office to ask if they take your plan before you enroll.

California Medical Board record

Licence A150922 · Current

Licensed to practise in California · since 2017 · expires 2027-08-31 · Northwestern University Feinberg School of Medicine.

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.

Peninsula Medical CenterBurlingame, 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: 5 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.139, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.242, Oct 2024 – Sep 2025

See every measure and the patient survey for Peninsula Medical Center

Behind the star rating — Deaths: 2 better, 6 the same, 0 worse of 8 measures. Safety: 2 better, 5 the same, 0 worse of 7 measures. Readmissions: 0 better, 10 the same, 1 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

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Every scored measure at Peninsula Medical Center

Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections	0.139	Better	Oct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections	0.242	Better	Oct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths	1.21 (0.27 to 2.15) · 1,258 cases	No different	Jul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths	0.81 (0.51 to 1.1)	No different	Jul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths	155.44 (112.67 to 198.21) · 90 cases	No different	Jul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths	2.5 · 32 cases	None	Jul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths	7.1 · 82 cases	None	Jul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths	10 · 188 cases	None	Jul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths	9 · 473 cases	None	Jul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths	14.8 · 342 cases	None	Jul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths	9.4 · 485 cases	None	Jul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths	2.9 · 3,730 cases	None	Jul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths	0.2 (0 to 0.4) · 6,904 cases	No different	Jul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths	0.21 (0.02 to 0.4) · 7,052 cases	No different	Jul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths	3.41 (1.43 to 5.39) · 1,695 cases	No different	Jul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths	1.72 (0.17 to 3.28) · 665 cases	No different	Jul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths	2.11 (0.66 to 3.56) · 1,545 cases	No different	Jul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths	7.1 (1.3 to 12.9) · 670 cases	No different	Jul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths	5.96 (2.63 to 9.29) · 653 cases	No different	Jul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths	1.61 (0.15 to 3.08) · 418 cases	No different	Jul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths	0.14 (0 to 0.78) · 5,539 cases	No different	Jul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths	3.7 · 192 cases	None	Apr 2023 – Mar 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections	0.215	No different	Oct 2024 – Sep 2025
MRSA BacteremiaInfections	0.263	No different	Oct 2024 – Sep 2025
SSI - Colon SurgeryInfections	0.74	No different	Oct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits	14.3 · 300 cases	None	Jul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits	19 · 702 cases	None	Jul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits	1.2 · 207 cases	None	Jul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits	-13.6 · 531 cases	None	Jul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits	24.3 · 343 cases	None	Jul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits	18.1 · 449 cases	None	Jul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits	4.5 (2.8 to 7) · 85 cases	No different	Jan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits	9.6 (6.7 to 13.7) · 85 cases	No different	Jan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits	5.7 · 189 cases	None	Jul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits	11 · 45 cases	None	Jul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits	20.6 · 117 cases	None	Jul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits	13 (9.7 to 17.2) · 584 cases	No different	Jan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits	0.9 (0.7 to 1.2) · 764 cases	No different	Jan 2024 – Dec 2024

What patients said (523 patients answered, 27% of those asked)

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Patient survey stars by topic at Peninsula Medical Center

Cleanliness	4
Nurse communication	4
Doctor communication	4
Communication about medicines	3
Discharge information	4
Overall hospital rating	4
Quietness	3
Recommend hospital	5

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Share of patients giving the best answer at Peninsula Medical Center

Room was "always" clean	76%
Nurses "always" communicated well	81%
Doctors "always" communicated well	80%
Staff "always" explained	58%
Yes, staff "did" give patients this information	89%
Yes, staff "did" give patients information about help after discharge	87%
Doctors "always" explained things so they could understand	74%
Doctors "always" listened carefully	79%
Doctors "always" treated them with courtesy and respect	87%
Patients who gave a rating of "9" or "10" (high)	75%
Staff "always" explained new medications	72%
Nurses "always" explained things so they could understand	77%
Nurses "always" listened carefully	79%
Nurses "always" treated them with courtesy and respect	88%
"Always" quiet at night	54%
"YES", patients would definitely recommend the hospital	78%
Staff "always" explained possible side effects	44%
Yes, staff "did" give patients information about possible symptoms	90%

Original Medicare doctor bills

$173,145

Medicare paid this office $173,145 for 842 people.

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

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Largest Original Medicare bills

Return visit (30+ min)	332	$43,864	$114
Initial hospital care with moderate level of medical decision making at least 75 minutes	137	$19,099	$137
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes	107	$18,079	$102
Long return visit (40+ min)	102	$17,479	$149
New patient visit (45+ min)	98	$13,875	$142

See all 25 services

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Every Original Medicare service billed

Return visit (30+ min)	332	$43,864	$114
Initial hospital care with moderate level of medical decision making at least 75 minutes	137	$19,099	$137
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes	107	$18,079	$102
Long return visit (40+ min)	102	$17,479	$149
New patient visit (45+ min)	98	$13,875	$142
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	52	$8,533	$164
Critical care, first 30-74 minutes	34	$8,347	$178
Ultrasound of heart with probe in esophagus, with report	63	$5,847	$91
Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report	26	$5,748	$213
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	264	$4,511	$15
External shock to heart to regulate heart beat	42	$4,194	$93
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	67	$3,836	$57
New patient visit (60+ min)	23	$3,813	$166
Short return visit (20+ min)	20	$1,571	$79
3d radiographic procedure with computerized image postprocessing	42	$1,401	$33
Telephone medical discussion with physician, 21-30 minutes	12	$1,268	$98
Ultrasound of heart with color-depicted blood flow, rate and valve function	26	$657	$24
Ultrasound of heart blood flow, valves and chambers, follow-up	25	$654	$25
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician	29	$537	$19
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes	36	$374	$10
Ultrasound of heart, follow-up	14	$328	$22
Ultrasound of heart blood flow, valves and chambers	16	$251	$16
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	17	$192	$11
Ultrasound of heart with color-depicted blood flow, rate and valve function	49	$138	$3
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	17	$128	$7

Who their Medicare patients are

842 Original Medicare patients in 2024. Average age 79 · Under 65 2% · 85 and older 28% · Women 53% · Also on Medicaid 10% · Health risk score 1.75. Above the middle of the specialty; the typical cardiology clinician is at 1.71.

Conditions among them: High blood pressure 75% · Coronary heart disease 50% · Atrial fibrillation 48% · Heart failure 42% · Chronic kidney disease 39% · Diabetes 37% · COPD 19% · Cancer 18% · Depression 18% · Stroke 13% · Dementia 11%.

The office billed $771,458, Medicare allowed $235,625 and paid $173,145; for 1,969 services of 47 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

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Original Medicare by year

2024	842	1,969	79	1.75	$771,458	$173,145
2023	821	1,772	79	1.62	$731,450	$170,346
2022	107	183	78	1.35	$84,386	$20,988

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: 25 services

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Original Medicare services billed in 2023

Long return visit (40+ min)	180	$32,951	$146
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	144	$28,169	$190
Return visit (30+ min)	232	$27,155	$111
Initial hospital care with moderate level of medical decision making at least 75 minutes	102	$15,910	$146
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes	94	$15,485	$104
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	118	$7,144	$61
New patient visit (45+ min)	52	$7,010	$135
Critical care, first 30-74 minutes	23	$5,309	$177
Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report	21	$4,505	$215
New patient visit (60+ min)	24	$4,478	$187
External shock to heart to regulate heart beat	50	$4,361	$86
Ultrasound of heart with probe in esophagus, with report	43	$4,248	$92
Telephone medical discussion with physician, 21-30 minutes	19	$1,689	$84
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	113	$1,447	$12
3d radiographic procedure with computerized image postprocessing	23	$777	$34
Ultrasound of heart, follow-up	29	$662	$22
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	72	$618	$7
Heart rhythm review and interpretation of continous external ekg over 8-15 days	23	$529	$23
Ultrasound of heart with color-depicted blood flow, rate and valve function	17	$450	$25
Ultrasound of heart blood flow, valves and chambers, follow-up	16	$441	$26
Heart rhythm recording of continous external ekg over 8-15 days	23	$297	$13
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician	14	$264	$19
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes	24	$254	$11
Ultrasound of heart blood flow, valves and chambers, follow-up	20	$131	$6
Ultrasound of heart with color-depicted blood flow, rate and valve function	34	$96	$3

2022: 6 services

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Original Medicare services billed in 2022

Subsequent hospital care with moderate levelof medical decision making at least 50 minutes	21	$3,231	$83
New patient visit (60+ min)	13	$2,628	$202
New patient visit (45+ min)	14	$2,145	$153
Initial hospital care with moderate level of medical decision making at least 75 minutes	12	$2,080	$173
Long return visit (40+ min)	12	$2,000	$167
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	16	$992	$62

Medicaid work

$4,353 in 2024

Medicaid paid $4,353 for 96 billed services this clinician did in 2024, up to 22 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.

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Largest Medicaid services in 2024

Echocardiography, transthoracic, real-time with image documentation (2D), includes M-mode recording, when performed, complete, with spectral Doppler echocardiography, and with color flow Doppler echocardiography	23	$1,855
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES	35	$1,140
1ST HOSP IP/OBS HIGH 75	12	$893
Return visit (30+ min)	26	$464

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Medicaid work by year

2024	96	4	22	$4,353
2023	89	2	18	$4,108
2022	14	1	12	$1,160

See the largest Medicaid services in earlier years

2023

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Largest Medicaid services in 2023

Echocardiography, transthoracic, real-time with image documentation (2D), includes M-mode recording, when performed, complete, with spectral Doppler echocardiography, and with color flow Doppler echocardiography	50	$3,016
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES	39	$1,092

2022

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Largest Medicaid services in 2022

Echocardiography, transthoracic, real-time with image documentation (2D), includes M-mode recording, when performed, complete, with spectral Doppler echocardiography, and with color flow Doppler echocardiography	14	$1,160

Drugs they prescribed that Part D paid

$929,923

Pharmacies billed $929,923 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 4,807) in 2024. At or below the middle of the specialty; the typical cardiology clinician is at 0%.

4,118 generic and 689 brand-name prescriptions · $929,923 in drug cost · 13 antibiotic prescriptions.

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.

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Largest Part D drug costs

Eliquis	296	$433,580	$1,465
Entresto	97	$105,711	$1,090
Xarelto	45	$73,847	$1,641
Jardiance	58	$73,421	$1,266
Repatha Sureclick	53	$61,259	$1,156

See all 47 drugs

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Every Part D drug this clinician prescribed

Eliquis	296	$433,580	$1,465
Entresto	97	$105,711	$1,090
Xarelto	45	$73,847	$1,641
Jardiance	58	$73,421	$1,266
Repatha Sureclick	53	$61,259	$1,156
Ozempic	18	$25,958	$1,442
Praluent	19	$18,027	$949
Farxiga	15	$16,505	$1,100
Atorvastatin	618	$10,405	$17
Rosuvastatin	339	$8,595	$25
Metoprolol	395	$6,355	$16
Ezetimibe	163	$5,137	$32
Dabigatran Etexilate	12	$4,122	$343
Losartan	251	$2,997	$12
Diltiazem 24hr Er (Cd)	96	$2,887	$30
Carvedilol	205	$2,649	$13
Amlodipine Besylate	297	$2,490	$8
Amiodarone	38	$2,367	$62
Irbesartan	97	$2,296	$24
Furosemide	308	$1,894	$6
Valsartan	48	$1,656	$35
Clopidogrel	82	$1,520	$19
Spironolactone	124	$1,446	$12
Isosorbide Mononitrate Er	46	$1,273	$28
Nebivolol	28	$1,261	$45
Hydralazine	90	$1,256	$14
Valsartan-Hydrochlorothiazide	15	$1,136	$76
Torsemide	35	$954	$27
Bisoprolol	32	$904	$28
Losartan-Hydrochlorothiazide	34	$869	$26
Lisinopril	110	$745	$7
Flecainide Acetate	14	$640	$46
Spironolactone-Hctz	16	$532	$33
Metoprolol	105	$496	$5
Olmesartan Medoxomil	28	$485	$17
Pravastatin	39	$445	$11
Diltiazem	20	$403	$20
Hydrochlorothiazide	106	$356	$3
Chlorthalidone	22	$305	$14
Verapamil Er	13	$277	$21
Potassium Chloride	28	$258	$9
Pantoprazole	11	$201	$18
Nitroglycerin	19	$190	$10
Benazepril	22	$140	$6
Triamterene-Hydrochlorothiazid	15	$120	$8
Simvastatin	14	$81	$6
Atenolol	13	$69	$5

Year by year

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Part D prescribing by year

2024	4,807	711	0% (0)	14%	$929,923
2023	2,529	517	0% (0)	15%	$542,077
2022	183	52	0% (0)	22%	$38,677
2021	107	25	0% (0)	25%	$22,390
2019	12	None	0% (0)	None	$4,096

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

See the drugs prescribed each year

2023: 37 drugs

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Part D drugs prescribed in 2023

Eliquis	148	$203,281	$1,374
Jardiance	40	$55,664	$1,392
Entresto	38	$45,030	$1,185
Xarelto	28	$43,684	$1,560
Farxiga	16	$27,422	$1,714
Repatha Sureclick	19	$23,996	$1,263
Trulicity	11	$22,577	$2,052
Ozempic	11	$17,403	$1,582
Rosuvastatin	181	$7,715	$43
Metoprolol	209	$5,445	$26
Atorvastatin	298	$5,130	$17
Ezetimibe	50	$2,649	$53
Amlodipine Besylate	190	$2,484	$13
Irbesartan	53	$2,341	$44
Losartan	114	$1,829	$16
Carvedilol	111	$1,599	$14
Furosemide	159	$1,406	$9
Diltiazem 24hr Er (Cd)	37	$1,374	$37
Spironolactone	90	$1,340	$15
Valsartan	18	$1,316	$73
Hydralazine	57	$1,135	$20
Amiodarone	24	$872	$36
Lisinopril	63	$846	$13
Bisoprolol	19	$805	$42
Torsemide	23	$762	$33
Isosorbide Mononitrate Er	21	$748	$36
Clopidogrel	31	$742	$24
Losartan-Hydrochlorothiazide	23	$651	$28
Spironolactone-Hctz	14	$532	$38
Chlorthalidone	25	$507	$20
Potassium Chloride	16	$448	$28
Olmesartan Medoxomil	12	$443	$37
Metoprolol	45	$303	$7
Hydrochlorothiazide	54	$221	$4
Pravastatin	11	$181	$16
Nitroglycerin	12	$171	$14
Atenolol	11	$84	$8

2022: 6 drugs

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Part D drugs prescribed in 2022

Jardiance	15	$20,476	$1,365
Atorvastatin	24	$340	$14
Carvedilol	12	$181	$15
Spironolactone	13	$163	$13
Metoprolol	12	$142	$12
Losartan	16	$82	$5

2021: 1 drug

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Part D drugs prescribed in 2021

Entresto	15	$9,290	$619

Money from drug and device companies

$343 in 2025

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Industry payments by year

2025	1	1	None	$343
2024	3	3	None	$161
2022	1	1	None	$18

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

A payment is not proof that care is biased.

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Payments by company

Heartflow	Ffrct	$343	1 payment Meals for Ffrct · 2025-06-26 · $343

See the published payment

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Every published payment

Heartflow	Meals · 2025-06-26	Ffrct	$343

See earlier years (2024, 2022)

2024: $161

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Payments by company in 2024

Boston Scientific	Watchman Flx	$103	1 payment Meals for Watchman Flx · 2024-09-19 · $103
E.R. Squibb & Sons L.L.C.	Camzyos	$30	1 payment Meals for Camzyos · 2024-07-24 · $30
AltaThera Pharmaceuticals	Sotalol Hydrochloride	$28	1 payment Meals for Sotalol Hydrochloride · 2024-10-28 · $28

2022: $18

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Payments by company in 2022

AstraZeneca Pharmaceuticals LP	Farxiga	$18	1 payment Meals for Farxiga · 2022-10-04 · $18

Professional record

NPI: 1871982744
Licence: CA A150922California A150922: Current · expires 2027-08-31
Group: Sutter Bay Medical Foundation
Video visits: Lists video visits
Gender: Female

More record details

Sole proprietor: Yes
Taxonomy: Cardiology (207RC0000X); Student in a training program (390200000X)
Mailing address: 325 Distel Cir, Los Altos, CA, 94022
NPI first listed: 2015-01-15
NPI last updated: 2022-10-13
NPI record certified: 2022-10-13

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

Extra NPI addresses: 300 Pasteur Dr, Stanford, CA, 94305