Sonal Aggarwal, MD
Family Medicine Physician · Walnut Creek, CA
Sonal Aggarwal, MD is a family medicine physician with a practice address in Walnut Creek, California, and NPI 1336336411, issued on Oct 2, 2007. Check the license (California A101426, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sonal Aggarwal
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A101426 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1450 Treat Blvd, Walnut Creek, CA 94597
- Phone
- (925) 296-9000
- Enumerated
- Oct 2, 2007
- Entity
- Type 1 · individual
Also registered at 1450 Treat Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Ables, D.O.Family Medicine Physician1710413299
- Andrea Agcaoili, D.O.Family Medicine Physician1265775035
- Deborah Arce, M.D.Internal Medicine Physician1841215605
- Cynthia AshbrookAllergy & Immunology Physician1386786408
- Chanda Banwat, M.D.Internal Medicine Physician1750584389
- Devorah Ben-Zeev, M.D.Internal Medicine Physician1033160692
Verify Sonal Aggarwal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
84% fewer Medicare Part D claims than the average family medicine physician in 2024
579 Medicare Part D claims for 233 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium52 claims
- Atorvastatin Calcium43 claims
- Amlodipine Besylate36 claims
- Rosuvastatin Calcium29 claims
- Losartan Potassium20 claims
- Albuterol Sulfate Hfa18 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's Medicare quality score for 2023: 85.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $180.68
7 payments, mostly food and beverage; the largest payer was Amgen Inc.. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospital and facility affiliations
- Axis Community Health IncPleasanton, CA
- John Muir Physician NetworkLivermore, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
110 family medicine physician records list a Walnut Creek practice address
They are 110 of the 6,170 NPPES records with a Walnut Creek practice address, and 16,272 family medicine physician records in California.
All 110 in Walnut Creek → All 16,272 in California → Every provider in Walnut Creek →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Sonal Aggarwal, MD's NPI number?
Sonal Aggarwal, MD's National Provider Identifier (NPI) is 1336336411, issued on Oct 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sonal Aggarwal, MD located?
The NPPES record lists a practice address at 1450 Treat Blvd, Walnut Creek, CA, 94597. Phone: (925) 296-9000. Providers update this record themselves, so call before visiting.
How can I verify Sonal Aggarwal, MD's license?
NPPES lists California license number A101426, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sonal Aggarwal, MD prescribe under Medicare Part D?
In 2024, Sonal Aggarwal, MD had 579 Medicare Part D claims for 233 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
What is Sonal Aggarwal, MD's Medicare quality score?
The 2023 MIPS final score is 85.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.