Gracia L. Wynne Duncan, MD
Obstetrics & Gynecology Physician · Houston, TX
Gracia L. Wynne Duncan, MD is an obstetrics & gynecology physician with a practice address in Houston, Texas, and NPI 1669466041, issued on Aug 31, 2005. Check the license (Texas L0139, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gracia L. Wynne Duncan
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- L0139 TX
Self-reported in NPPES; status is on the state search - Practice location
- 7580 Fannin St, Houston, TX 77054
- Phone
- (713) 795-5565
- Enumerated
- Aug 31, 2005
- Record last updated
- Jan 27, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (713) 795-5986
- Medicare enrollment
- Enrolled (PECOS I20060619000303); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 1996
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 3,524 in Texas → Look up another NPI →
Also registered at 7580 Fannin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Lloyd, M.D.Obstetrics & Gynecology Physician1124035712
- James McBrideObstetrics & Gynecology Physician1164485009
- Ferdinand Plavidal, MDObstetrics & Gynecology Physician1649244039
- Theresa Robinson, MDObstetrics & Gynecology Physician1619934080
- Guillermo Rowe, MDReproductive Endocrinology Physician1649372061
- Negar Vazirinia, M.D.Pediatrics Physician1407881527
Verify Gracia L. Wynne Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L0139Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
40 Medicare Part D claims for 12 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.
Industry payments in 2024: $48.34
2 payments; by number, the most common kind was food and beverage; the largest payer was Organon Llc. 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
- Texas Childrens Physician GroupHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gracia L. Wynne Duncan among 3,524 obstetrics & gynecology physician records in Texas
Gracia L. Wynne Duncan, MD is one of 3,524 obstetrics & gynecology physician records with a practice address in Texas. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1996 · median 2005 among the 2,093 with a school on file
- Record last updated2016 · 54% 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 Texas 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 Texas
There are 3,524 obstetrics & gynecology physician records in Texas.
All 3,524 in Texas → Every provider in Houston → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Karolina Adam, MDHouston, TX 770541326049891
- Maryam Baird, M.D.Houston, TX 770541063415255
- Dawn Black, M.D.Houston, TX 770541710980909
- Stephen Cone, M.D.Houston, TX 770541912900184
- Jason Cooper, M.D.Houston, TX 770541326041484
- Sebastian Faro, MD PHDHouston, TX 770541356342315
- Patrice Firpo, M.D.Houston, TX 770541982607032
- James Gullett, M.D.Houston, TX 770541811990864
Common questions
What is Gracia L. Wynne Duncan, MD's NPI number?
Gracia L. Wynne Duncan, MD's National Provider Identifier (NPI) is 1669466041, issued on Aug 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gracia L. Wynne Duncan, MD located?
The NPPES record lists a practice address at 7580 Fannin St, Houston, TX, 77054. Phone: (713) 795-5565. Providers update this record themselves, so call before visiting.
How can I verify Gracia L. Wynne Duncan, MD's license?
NPPES lists Texas license number L0139, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gracia L. Wynne Duncan, MD prescribe under Medicare Part D?
In 2024, Gracia L. Wynne Duncan, MD had 40 Medicare Part D claims for 12 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.