Bao Quynh N. Huynh, M.D.
Rheumatology Physician · Orange, CA
Bao Quynh N. Huynh, M.D. is a rheumatology physician with a practice address in Orange, California, and NPI 1538313648, issued on Nov 17, 2008. Check the license (California A117809, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bao Quynh N. Huynh
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- A117809 CA
29493 AL
Self-reported in NPPES; status is on the state search - Practice location
- 2501 E. Chapman Ave, Orange, CA 92869
- Phone
- (714) 628-3128
- Enumerated
- Nov 17, 2008
- Record last updated
- Nov 2, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111228000610); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Verify Bao Quynh N. Huynh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A117809Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average rheumatology physician in 2024
374 Medicare Part D claims for 69 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Methotrexate96 claims
- Prednisone62 claims
- Hydroxychloroquine Sulfate47 claims
- Enbrel Sureclick30 claims
- Sulfasalazine25 claims
- Allopurinol21 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.
Industry payments in 2024: $96.08
4 payments; by number, the most common kind was food and beverage; the largest payer was Fresenius Kabi USA, LLC. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Kern County Hospital AuthorityBakersfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bao Quynh N. Huynh among 926 rheumatology physician records in California
Bao Quynh N. Huynh, M.D. is one of 926 rheumatology physician records with a practice address in California. 81% 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 58% of them.
- NPI issued2008 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2006 · median 2003 among the 641 with a school on file
- Record last updated2011 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Orange → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Mehrnaz Hojjati, M. D.Orange, CA 928691720029135
- Andrew Phan, M.D.Orange, CA 928691710164736
- Brian S Andrews, MDOrange, CA 928681609970292
- Tun Tun Aung, DOOrange, CA 928681922676824
- Caroline BuiOrange, CA 928681821626482
- Ian Chang, D.O.Orange, CA 928681407116411
- Neha ChaurasiaOrange, CA 928681457980211
- Michael Cheng, DOOrange, CA 928681003109513
Common questions
What is Bao Quynh N. Huynh, M.D.'s NPI number?
Bao Quynh N. Huynh, M.D.'s National Provider Identifier (NPI) is 1538313648, issued on Nov 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Bao Quynh N. Huynh, M.D. located?
The NPPES record lists a practice address at 2501 E. Chapman Ave, Orange, CA, 92869. Phone: (714) 628-3128. Providers update this record themselves, so call before visiting.
How can I verify Bao Quynh N. Huynh, M.D.'s license?
NPPES lists California license number A117809, 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 Bao Quynh N. Huynh, M.D. prescribe under Medicare Part D?
In 2024, Bao Quynh N. Huynh, M.D. had 374 Medicare Part D claims for 69 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.