Audrey Ou Chang
Obstetrics & Gynecology Physician · Cary, NC
Audrey Ou Chang is an obstetrics & gynecology physician with a practice address in Cary, North Carolina, and NPI 1679137418, issued on Apr 26, 2019. Check the license (North Carolina 2023-01803, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Audrey Ou Chang
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 2023-01803 NC
Self-reported in NPPES; status is on the state search - Practice location
- 210 Ashville Ave Ste 315, Cary, NC 27518
- Phone
- (919) 455-1538
- Enumerated
- Apr 26, 2019
- Record last updated
- Dec 1, 2023
- Medicare enrollment
- Enrolled (PECOS I20230919001360); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,548 in North Carolina → Look up another NPI →
Verify Audrey Ou Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2023-01803Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
44 Medicare Part D claims for 18 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol18 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 MIPS final score for 2023 (Medicare payment program): 95.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $54.84
2 payments; by number, the most common kind was food and beverage; the largest payer was Davol Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Wakemed Specialists Group LLCMorrisville, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Audrey Ou Chang among 1,548 obstetrics & gynecology physician records in North Carolina
Audrey Ou Chang is one of 1,548 obstetrics & gynecology physician records with a practice address in North Carolina. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 89% of them.
- NPI issued2019 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2019 · median 2007 among the 1,043 with a school on file
- Record last updated2023 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in North Carolina
There are 1,548 obstetrics & gynecology physician records in North Carolina.
All 1,548 in North Carolina → Every provider in Cary → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Peter Bippart, MDCary, NC 275181700844248
- Casey Cooper, DOCary, NC 275181407348659
- Jennifer Fraley, M.D.Cary, NC 275181306019195
- Adam Kansagor, D.O.Cary, NC 275181306077474
- Elizabeth Lahti, MDCary, NC 275181336644301
- Subhratha Maredia, M.D.Cary, NC 275181841633328
- Robin Piper, DOCary, NC 275181356902563
- Gilberto Rodrigo, M.D.Cary, NC 275181568653608
Common questions
What is Audrey Ou Chang's NPI number?
Audrey Ou Chang's National Provider Identifier (NPI) is 1679137418, issued on Apr 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Audrey Ou Chang located?
The NPPES record lists a practice address at 210 Ashville Ave Ste 315, Cary, NC, 27518. Phone: (919) 455-1538. Providers update this record themselves, so call before visiting.
How can I verify Audrey Ou Chang's license?
NPPES lists North Carolina license number 2023-01803, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Audrey Ou Chang prescribe under Medicare Part D?
In 2024, Audrey Ou Chang had 44 Medicare Part D claims for 18 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Audrey Ou Chang's MIPS final score?
The 2023 MIPS final score is 95.4 of 100. 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.