Peter E. Diaz, M.D.
Obstetrics & Gynecology Physician · Austin, TX
Peter E. Diaz, M.D. is an obstetrics & gynecology physician with a practice address in Austin, Texas, and NPI 1760594808, issued on Aug 31, 2006. Check the license (Texas L8039, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Peter E. Diaz
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- L8039 TX
Self-reported in NPPES; status is on the state search - Practice location
- 9835 N Lake Creek Pkwy, Austin, TX 78717
- Phone
- (737) 229-2000
- Enumerated
- Aug 31, 2006
- Record last updated
- Apr 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20040610000267); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 3,524 in Texas → Look up another NPI →
Also registered at 9835 N Lake Creek Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Heidi AbrahamEmergency Medicine Physician1548551864
- Mohammed Farhan Ali, MDPediatric Nephrology Physician1548504541
- Oliver Aregullin, MDInterventional Cardiology Physician1275882599
- Aubrey Baker, PT, DPT, PCSPediatric Physical Therapist1326829748
- Allison Bautista, PNPPediatric Nurse Practitioner1134638232
- Sarah Bernstein, M.D.Neonatal-Perinatal Medicine Physician1568858785
Verify Peter E. Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L8039Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
29 Medicare Part D claims for 16 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): 91.2 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: $13.59
1 payment: food and beverage; the largest payer was Medtronic, 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
- Obhg Texas Holdings PASan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter E. Diaz among 3,524 obstetrics & gynecology physician records in Texas
Peter E. Diaz, M.D. 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 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 53% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1999 · median 2005 among the 2,093 with a school on file
- Record last updated2025 · 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 Austin → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Analiza Justo, M.D.Austin, TX 787171669651725
- Luis Linan, M.D.Austin, TX 787171639266232
- Renee Lockey, MDAustin, TX 787171447265509
- Carol Peters, MDAustin, TX 787171053337816
- Analisa Villarreal, MDAustin, TX 787171952460941
- Maysen Calzon, MDAustin, TX 787121548106743
- Elliotte Cannon, MDAustin, TX 787121184568404
- Sarah CaplanAustin, TX 787121255278909
Common questions
What is Peter E. Diaz, M.D.'s NPI number?
Peter E. Diaz, M.D.'s National Provider Identifier (NPI) is 1760594808, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter E. Diaz, M.D. located?
The NPPES record lists a practice address at 9835 N Lake Creek Pkwy, Austin, TX, 78717. Phone: (737) 229-2000. Providers update this record themselves, so call before visiting.
How can I verify Peter E. Diaz, M.D.'s license?
NPPES lists Texas license number L8039, 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 Peter E. Diaz, M.D. prescribe under Medicare Part D?
In 2024, Peter E. Diaz, M.D. had 29 Medicare Part D claims for 16 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Peter E. Diaz, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.2 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.