Jian Zhang, MD
Gastroenterology Physician · Baldwin Park, CA
Jian Zhang, MD is a gastroenterology physician with a practice address in Baldwin Park, California, and NPI 1710054549, issued on Nov 29, 2006. Check the license (California A79391, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jian Zhang
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A79391 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
- Phone
- (626) 851-1011
- Enumerated
- Nov 29, 2006
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080728000788); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 1011 Baldwin Park Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Abdulla, M.D.Surgery Physician1699200840
- Julia Aburto-Erazo, NPNurse Practitioner1922175777
- Mauricio Acevedo, MDInternal Medicine Physician1659442614
- Helen Achio, PHARM.D.Pharmacist1225114614
- Olufemi Adenuga, M.D, MPHPulmonary Disease Physician1134389125
- Soma Agarwal, MDOphthalmology Physician1437220316
Verify Jian Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A79391Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average gastroenterology physician in 2024
299 Medicare Part D claims for 111 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Omeprazole53 claims
- Entecavir34 claims
- Mesalamine33 claims
- Gavilyte-C23 claims
- Lactulose22 claims
- Pantoprazole Sodium19 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupBaldwin Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jian Zhang among 2,140 gastroenterology physician records in California
Jian Zhang, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2000 · median 2002 among the 1,538 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Baldwin Park → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jimmy Kang, MDBaldwin Park, CA 917061427106236
- Ernest Khine, MDBaldwin Park, CA 917061750452645
- Mark Kim, MDBaldwin Park, CA 917061679645154
- Robert Lin, MDBaldwin Park, CA 917061417028390
- Vincent Ng, MDBaldwin Park, CA 917061376691352
- Ju-En ThlickBaldwin Park, CA 917061386878262
- Rody Yoshinaka, MDBaldwin Park, CA 917061033280946
- Hussain Al-Darsani, M.D.Chino, CA 917101669429775
Common questions
What is Jian Zhang, MD's NPI number?
Jian Zhang, MD's National Provider Identifier (NPI) is 1710054549, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jian Zhang, MD located?
The NPPES record lists a practice address at 1011 Baldwin Park Blvd, Baldwin Park, CA, 91706. Phone: (626) 851-1011. Providers update this record themselves, so call before visiting.
How can I verify Jian Zhang, MD's license?
NPPES lists California license number A79391, 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 Jian Zhang, MD prescribe under Medicare Part D?
In 2024, Jian Zhang, MD had 299 Medicare Part D claims for 111 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.