Piyush Aggarwal, MD
Colon & Rectal Surgery Physician · Walnut Creek, CA
Piyush Aggarwal, MD is a colon & rectal surgery physician with a practice address in Walnut Creek, California, and NPI 1700070273, issued on Aug 28, 2007. Check the license (California A157104, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Piyush Aggarwal
- Credential
- MD
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- A157104 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1479 Ygnacio Valley RD # 200, Walnut Creek, CA 94598
- Phone
- (925) 296-7340
- Enumerated
- Aug 28, 2007
- Record last updated
- Jan 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (925) 296-9042
- Medicare enrollment
- Enrolled (PECOS I20190423000972); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1479 Ygnacio Valley RD # 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Albert Bradley, MSN, APRN, FNP-BCFamily Nurse Practitioner1649685397
- Alice Choi, APNNurse Practitioner1861852717
- Jennifer Falk, PA-CPhysician Assistant1093014110
- Samuel Oommen, M.D.Surgery Physician1942385851
- Drew Schembre, MDGastroenterology Physician1366557217
Verify Piyush Aggarwal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A157104Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024
176 Medicare Part D claims for 80 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 25 claims were for opioids.
Most prescribed
- Metronidazole27 claims
- Neomycin Sulfate25 claims
- Sod Sulf-Potass Sulf-Mag Sulf24 claims
- Ondansetron Hcl18 claims
- Tramadol Hcl14 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 MIPS final score for 2023 (Medicare payment program): 96.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,018.83
8 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 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.
Bills Medicare through one group practice
- John Muir Physician NetworkWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colon & Rectal Surgery Physician providers in California
There are 198 colon & rectal surgery physician records in California.
Other colon & rectal surgery physician records in California
- Kenneth Aaron, M.D.Newport Beach, CA1689809162
- Benjamin Abbadessa, M.D.San Diego, CA1255593612
- Michael Abel, M.D.San Francisco, CA1447253380
- Allison Aka, MDLoma Linda, CA1891130100
- Gabriel Akopian, M.D.Pasadena, CA1326074535
- Ahmed Alkoraishi, MDHayward, CA1609954478
- Robert Allen, MDSanta Cruz, CA1871586610
- John Anane-Sefah, M.D.Capitola, CA1639227143
- George Angelos, M.D.Redding, CA1548410657
- Shohrat Annaberdyev, M.D.Roseville, CA1386888147
Common questions
What is Piyush Aggarwal, MD's NPI number?
Piyush Aggarwal, MD's National Provider Identifier (NPI) is 1700070273, issued on Aug 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Piyush Aggarwal, MD located?
The NPPES record lists a practice address at 1479 Ygnacio Valley RD # 200, Walnut Creek, CA, 94598. Phone: (925) 296-7340. Providers update this record themselves, so call before visiting.
How can I verify Piyush Aggarwal, MD's license?
NPPES lists California license number A157104, 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 Piyush Aggarwal, MD prescribe under Medicare Part D?
In 2024, Piyush Aggarwal, MD had 176 Medicare Part D claims for 80 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. Part D covers Medicare prescriptions only.
What is Piyush Aggarwal, MD's MIPS final score?
The 2023 MIPS final score is 96.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.