Howard Chang Pyo, D.O
Family Medicine Physician · Fullerton, CA
Howard Chang Pyo, D.O is a family medicine physician with a practice address in Fullerton, California, and NPI 1831540632, issued on Jun 23, 2016. Check the license (California 20A18709, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Howard Chang Pyo
- Credential
- D.O
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A18709 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2000 E Chapman Ave, Fullerton, CA 92831
- Phone
- (909) 802-0015
- Enumerated
- Jun 23, 2016
- Record last updated
- May 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20221228002397); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2000 E Chapman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrea Chan, OTROccupational Therapist1033140231
- Anant Desai, PTPhysical Therapist1881621555
- Smit Gandhi, MPTPhysical Therapist1346271137
- Dennis Kudlik, DDSDentist1033381934
- Silvia Ray, M.ED.Speech-Language Pathologist1710915434
- Corina Tieves, PTAPhysical Therapy Assistant1396771929
Verify Howard Chang Pyo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A18709Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average family medicine physician in 2024
2,580 Medicare Part D claims for 214 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium139 claims
- Eliquis78 claims
- Metformin Hcl77 claims
- Gabapentin72 claims
- Lisinopril71 claims
- Losartan Potassium69 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.
Howard Chang Pyo among 17,133 family medicine physician records in California
Howard Chang Pyo, 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 2016, is newer than 76% of them.
- NPI issued2016 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2016 · median 2005 among the 10,652 with a school on file
- Record last updated2026 · 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
- James Huang, D.O.Fullerton, CA 928311518992635
- 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 Howard Chang Pyo, D.O's NPI number?
Howard Chang Pyo, D.O's National Provider Identifier (NPI) is 1831540632, issued on Jun 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Howard Chang Pyo, D.O located?
The NPPES record lists a practice address at 2000 E Chapman Ave, Fullerton, CA, 92831. Phone: (909) 802-0015. Providers update this record themselves, so call before visiting.
How can I verify Howard Chang Pyo, D.O's license?
NPPES lists California license number 20A18709, 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 Howard Chang Pyo, D.O prescribe under Medicare Part D?
In 2024, Howard Chang Pyo, D.O had 2,580 Medicare Part D claims for 214 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.