Hongha T. Vu James, M.D.
Gastroenterology Physician · Walnut Creek, CA
Hongha T. Vu James, M.D. is a gastroenterology physician with a practice address in Walnut Creek, California, and NPI 1174798805, issued on Apr 24, 2008. Check the license (California A143635, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hongha T. Vu James
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- A143635 CA
2013013936 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1450 Treat Blvd, Walnut Creek, CA 94597
- Phone
- (925) 296-7340
- Enumerated
- Apr 24, 2008
- Record last updated
- Sep 17, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (925) 296-9042
- Medicare enrollment
- Enrolled (PECOS I20160926000345); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 1450 Treat Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Andrea Agcaoili, D.O.Family Medicine Physician1265775035
- Sonal Aggarwal, MDFamily Medicine Physician1336336411
- Deborah Arce, M.D.Internal Medicine Physician1841215605
- Cynthia AshbrookAllergy & Immunology Physician1386786408
- Chanda Banwat, M.D.Internal Medicine Physician1750584389
Verify Hongha T. Vu James in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A143635Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average gastroenterology physician in 2024
791 Medicare Part D claims for 260 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium228 claims
- Omeprazole147 claims
- Famotidine72 claims
- Sod Sulf-Potass Sulf-Mag Sulf67 claims
- Dicyclomine Hcl33 claims
- Linzess31 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 MIPS final score for 2023 (Medicare payment program): 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: $698.11
15 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
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).
Hongha T. Vu James among 2,140 gastroenterology physician records in California
Hongha T. Vu James, M.D. 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 2008, is newer than 63% of them.
- NPI issued2008 · 63% of these records are older, 31% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2007 · median 2002 among the 1,538 with a school on file
- Record last updated2016 · 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 Walnut Creek → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Matthew Chin, M.D.Walnut Creek, CA 945971629397351
- Kanwar Gill, M.D.Walnut Creek, CA 945971861409385
- Mervyn Becker, MDWalnut Creek, CA 945981841329430
- Eugene Chan, MDWalnut Creek, CA 945961528146610
- Suyi Chang, MDWalnut Creek, CA 945961972681468
- Steve Cheng, MDWalnut Creek, CA 945981245318328
- Daniel Chung, MDWalnut Creek, CA 945961063590552
- Ming Fang, MDWalnut Creek, CA 945961366520199
Common questions
What is Hongha T. Vu James, M.D.'s NPI number?
Hongha T. Vu James, M.D.'s National Provider Identifier (NPI) is 1174798805, issued on Apr 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Hongha T. Vu James, M.D. located?
The NPPES record lists a practice address at 1450 Treat Blvd, Walnut Creek, CA, 94597. Phone: (925) 296-7340. Providers update this record themselves, so call before visiting.
How can I verify Hongha T. Vu James, M.D.'s license?
NPPES lists California license number A143635, 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 Hongha T. Vu James, M.D. prescribe under Medicare Part D?
In 2024, Hongha T. Vu James, M.D. had 791 Medicare Part D claims for 260 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Hongha T. Vu James, M.D.'s MIPS final 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), 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.