James Huang, D.O.
Family Medicine Physician · Fullerton, CA
James Huang, D.O. is a family medicine physician with a practice address in Fullerton, California, and NPI 1518992635, issued on Jul 11, 2006. Check the license (California 20A7771, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Huang
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A7771 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2501 E Chapman Ave Ste 100, Fullerton, CA 92831
- Phone
- (714) 990-0375
- Enumerated
- Jul 11, 2006
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (657) 217-5565
- Medicare enrollment
- Enrolled (PECOS I20050422000459); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify James Huang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A7771Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average family medicine physician in 2024
2,973 Medicare Part D claims for 254 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Atorvastatin Calcium143 claims
- Mounjaro143 claims
- Ozempic130 claims
- Amlodipine Besylate100 claims
- Pantoprazole Sodium97 claims
- Rosuvastatin Calcium89 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): 90.1 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: $406.97
6 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 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
- Superior Medical GroupFullerton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Huang among 17,133 family medicine physician records in California
James Huang, D.O. is one of 17,133 family medicine 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1999 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 family medicine physician records list a practice address in Fullerton
They are 35 of the 5,437 NPPES records with a practice address in Fullerton, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Fullerton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Howard Pyo, D.OFullerton, CA 928311831540632
- Ashley Williams, MDFullerton, CA 928311659766640
- Wonbae Choe, M.D.Fullerton, CA 928321104955194
- Son Do, M.D.Fullerton, CA 928321184284168
- Anthony-Tu DoFullerton, CA 928321154070910
- Henry Kaw, M.D.Fullerton, CA 928321215022967
- Grainne McEvoy, M.D.Fullerton, CA 928321841369667
- Milie Tolentino, MDFullerton, CA 928321063531531
Common questions
What is James Huang, D.O.'s NPI number?
James Huang, D.O.'s National Provider Identifier (NPI) is 1518992635, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Huang, D.O. located?
The NPPES record lists a practice address at 2501 E Chapman Ave Ste 100, Fullerton, CA, 92831. Phone: (714) 990-0375. Providers update this record themselves, so call before visiting.
How can I verify James Huang, D.O.'s license?
NPPES lists California license number 20A7771, 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 James Huang, D.O. prescribe under Medicare Part D?
In 2024, James Huang, D.O. had 2,973 Medicare Part D claims for 254 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is James Huang, D.O.'s MIPS final score?
The 2023 MIPS final score is 90.1 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.