Patricia Chang-Wai Chau, M.D.
Obstetrics & Gynecology Physician · New York, NY
Patricia Chang-Wai Chau, M.D. is an obstetrics & gynecology physician with a practice address in New York, New York, and NPI 1275852410, issued on May 27, 2010. Check the license (New York 260694, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Patricia Chang-Wai Chau
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 260694 NY
25MA08766400 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 227 Madison St, New York, NY 10002
- Phone
- (212) 238-7680
- Enumerated
- May 27, 2010
- Record last updated
- Aug 1, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (212) 238-7009
- Medicare enrollment
- Enrolled (PECOS I20150313000636); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 3,174 in New York → Look up another NPI →
Also registered at 227 Madison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Enrique Acosta, PAPhysician Assistant1346592235
- Jennifer Adams, MDInternal Medicine Physician1720006869
- Veronica Ades, M.D., M.P.H.Obstetrics & Gynecology Physician1578719092
- Cesar Aguilera, MDPediatrics Physician1174547012
- Lashonda Allen, SLPSpeech-Language Pathologist1902005887
- Jennifer Alonso, LMSWSocial Worker1982880340
Verify Patricia Chang-Wai Chau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 260694Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
70 Medicare Part D claims for 23 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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): 93.7 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: $126.54
6 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US 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
- Barnabas Health Medical Group PCJersey City, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patricia Chang-Wai Chau among 3,174 obstetrics & gynecology physician records in New York
Patricia Chang-Wai Chau, M.D. is one of 3,174 obstetrics & gynecology physician records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 68% of them.
- NPI issued2010 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2006 · median 2002 among the 1,870 with a school on file
- Record last updated2011 · 63% 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 New York 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 New York
There are 3,174 obstetrics & gynecology physician records in New York.
All 3,174 in New York → Every provider in New York → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Veronica Ades, M.D., M.P.H.New York, NY 100021578719092
- Surachanee Angkustsiri, MDNew York, NY 100021437113750
- Qing Ding, MDNew York, NY 100021609850031
- Eric Fok, MDNew York, NY 100021073543856
- Morris Gagliardi, MEDICAL DOCTORNew York, NY 100021538157029
- Christine Gutierrez, MDNew York, NY 100021487975306
- Hayley Jones, M.D.New York, NY 100021295268662
- Kwok Miu, MDNew York, NY 100021609942259
Common questions
What is Patricia Chang-Wai Chau, M.D.'s NPI number?
Patricia Chang-Wai Chau, M.D.'s National Provider Identifier (NPI) is 1275852410, issued on May 27, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Patricia Chang-Wai Chau, M.D. located?
The NPPES record lists a practice address at 227 Madison St, New York, NY, 10002. Phone: (212) 238-7680. Providers update this record themselves, so call before visiting.
How can I verify Patricia Chang-Wai Chau, M.D.'s license?
NPPES lists New York license number 260694, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Patricia Chang-Wai Chau, M.D. prescribe under Medicare Part D?
In 2024, Patricia Chang-Wai Chau, M.D. had 70 Medicare Part D claims for 23 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Patricia Chang-Wai Chau, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.7 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.