NPPES file of Aug 9, 2026

Yi Zheng, M.D.

Gastroenterology Physician · Walnut Creek, CA

Yi Zheng, M.D. is a gastroenterology physician with a practice address in Walnut Creek, California, and NPI 1851622427, issued on Jan 21, 2010. Check the license (California A95560, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851622427
Name
Yi Zheng
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A95560 CA
Self-reported in NPPES; status is on the state search
Practice location
2021 Ygnacio Valley RD Ste E105, Walnut Creek, CA 94598
Phone
(925) 384-9276
Enumerated
Jan 21, 2010
Record last updated
May 21, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20091229000401); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Yi Zheng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A95560
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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14% more Medicare Part D claims than the average gastroenterology physician in 2024

928 Medicare Part D claims for 465 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Yi Zheng928
  2. Specialty average811

Most prescribed

  1. Omeprazole352 claims
  2. Sod Sulf-Potass Sulf-Mag Sulf179 claims
  3. Gavilyte-G90 claims
  4. Pantoprazole Sodium63 claims
  5. Peg-3350 And Electrolytes53 claims
  6. Mesalamine30 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $554.13

20 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Yi Zheng$554.13
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Adventist Health Mendocino CoastFort Bragg, CA · Critical Access Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

Other gastroenterology physician records in California

  1. David Aarons, MDLodi, CA1619081379
  2. Constante Abaya, MDOxnard, CA1003918459
  3. Sadeea Abbasi, M.D., PH.D.Los Angeles, CA1366713513
  4. Basim Abdelkarim, MDUpland, CA1932217544
  5. Homan Abdollahzadeh, MDPalm Springs, CA1184634826
  6. John Abdulian, M.D.Fresno, CA1437114113
  7. Hussein Abidali, DORancho Cucamonga, CA1205274768
  8. Alaa Abousaif, MDOrange, CA1235124108
  9. Donald Abrahm, M.D.Newport Beach, CA1215022405
  10. Maria Abreu, M.D.West Hollywood, CA1598793374

Common questions

What is Yi Zheng, M.D.'s NPI number?

Yi Zheng, M.D.'s National Provider Identifier (NPI) is 1851622427, issued on Jan 21, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Yi Zheng, M.D. located?

The NPPES record lists a practice address at 2021 Ygnacio Valley RD Ste E105, Walnut Creek, CA, 94598. Phone: (925) 384-9276. Providers update this record themselves, so call before visiting.

How can I verify Yi Zheng, M.D.'s license?

NPPES lists California license number A95560, 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 Yi Zheng, M.D. prescribe under Medicare Part D?

In 2024, Yi Zheng, M.D. had 928 Medicare Part D claims for 465 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Yi Zheng, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.