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
8 nearest colon & rectal surgery physician records → All 198 in California → Look up another NPI →
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).
Piyush Aggarwal among 198 colon & rectal surgery physician records in California
Piyush Aggarwal, MD is one of 198 colon & rectal surgery physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 40% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2005 · median 2002 among the 149 with a school on file
- Record last updated2019 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in California
There are 198 colon & rectal surgery physician records in California.
All 198 in California → Every provider in Walnut Creek → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Ran Kim, M.D.Walnut Creek, CA 945981437237005
- Brian McGuinness, M.D.Walnut Creek, CA 945981891870770
- Poornima Vanguri, MDWalnut Creek, CA 945981144457375
- Ahmed Alkoraishi, MDHayward, CA 945451609954478
- Doreen Jackson, MDTravis Air Force Base, CA 945351649615287
- Mark Scherrer, MDTravis Afb, CA 945351487641155
- Kim Rhoads, MDStanford, CA 943051720266539
- Andrew Shelton, M.D.Stanford, CA 943051710029681
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.