NPPES file of Aug 9, 2026

Angela H. Chang, MD

Family Medicine Physician · Stillwater, OK

Angela H. Chang, MD is a family medicine physician with a practice address in Stillwater, Oklahoma, and NPI 1679776199, issued on Jun 11, 2007. Check the license (Oklahoma 27541, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679776199
Name
Angela H. Chang
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
27541 OK
ME106278 FL
TRN11002 FL
Self-reported in NPPES; status is on the state search
Practice location
1815 W 6TH Ave, Stillwater, OK 74074
Phone
(405) 743-7300
Enumerated
Jun 11, 2007
Record last updated
Nov 3, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicaid ID
002428900 FL
Medicare enrollment
Enrolled (PECOS I20130930000515); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1815 W 6TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Schyler Alley, MHS, PA-CPhysician Assistant1215694088
  2. William Anthony, D.O.Family Medicine Physician1508306655
  3. Gregory Balcerak, DOInternal Medicine Physician1538839154
  4. Daniel Brown, D.O.Family Medicine Physician1134310436
  5. Terry Brown, M.D.Internal Medicine Physician1124004759
  6. Susan Bullard, M.D.Pediatrics Physician1386629129

Verify Angela H. Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 27541
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oklahoma license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

93% fewer Medicare Part D claims than the average family medicine physician in 2024

259 Medicare Part D claims for 183 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Angela Chang259
  2. Specialty average3,544

Most prescribed

  1. Azithromycin40 claims
  2. Prednisone26 claims
  3. Amoxicillin-Clavulanate Potass23 claims
  4. Cephalexin20 claims
  5. Albuterol Sulfate Hfa14 claims
  6. Cyclobenzaprine Hcl13 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 2 group practices

  1. Cayuga Medical Associates PCIthaca, NY
  2. Cma Medical Practice PLLCIthaca, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

22 family medicine physician records list a practice address in Stillwater

They are 22 of the 1,440 NPPES records with a practice address in Stillwater, and 2,303 family medicine physician records in Oklahoma.

Other family medicine physician records in Oklahoma

  1. Michael Aaron, M.D.Weatherford, OK1700958659
  2. Shams Abbas, MDOklahoma City, OK1639607963
  3. Nicole Abel, DOTulsa, OK1073142022
  4. Robert Abell, MDOklahoma City, OK1336179126
  5. Penny AberOklahoma City, OK1982530432
  6. Bob Abernathy, DOCordell, OK1114920071
  7. Rochelle Ablah, MDOklahoma City, OK1366656647
  8. Alireza Abolmaali Damghani, MDMidwest City, OK1427275775
  9. Akram Abraham, M.D.Hollis, OK1609857754
  10. John Abraham, MDTulsa, OK1962634535

Common questions

What is Angela H. Chang, MD's NPI number?

Angela H. Chang, MD's National Provider Identifier (NPI) is 1679776199, issued on Jun 11, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Angela H. Chang, MD located?

The NPPES record lists a practice address at 1815 W 6TH Ave, Stillwater, OK, 74074. Phone: (405) 743-7300. Providers update this record themselves, so call before visiting.

How can I verify Angela H. Chang, MD's license?

NPPES lists Oklahoma license number 27541, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Angela H. Chang, MD prescribe under Medicare Part D?

In 2024, Angela H. Chang, MD had 259 Medicare Part D claims for 183 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.