Peter E Diaz, M.D.

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

L8039 Issued in TX

Practice address

9835 N Lake Creek Pkwy
Austin, TX 78717-6210

Phone

(737) 229-2000

NPI assigned

Aug 31, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in TX, OK2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Obstetrics/Gynecology

Education

Texas Tech University Health Science Center School of Medicine, 1999

Medicare assignment

May accept Medicare assignment

Group practices

Oklahoma State UniversityGroup PAC ID 2769739358, 110 clinicians

Central Texas Community Health CentersGroup PAC ID 5395802151, shared by 33 NPIs, 165 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/6925/brand/1/csg/1/fhir/r4
• Direct secure messaging: pdiaz573475@christushealth.direct-ci.net

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Oklahoma State University

  dba OSU Speech-Language-Hearing Clinic

  • Speech-Language Pathologist
  • Stillwater, OK
  • NPI 1700994878
  Medicare reassignment Care Compare group
• Lone Star OB/GYN Associates, P.a.

  • Obstetrics & Gynecology Physician
  • San Antonio, TX
  • NPI 1063441921
  Medicare reassignment NPD
• Texas Children's Physician Group

  • Pediatrics Physician
  • Houston, TX
  • NPI 1861675506
  Medicare reassignment NPD
• Harvard Family Physicians P C

  • Family Medicine Physician
  • Tulsa, OK
  • NPI 1306891288

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Obhg Oklahoma, P.C.

  • Obstetrics & Gynecology Physician
  • Tulsa, OK
  • NPI 1043595374
  Medicare reassignment NPD
• St. John Physicians, Inc.

  • Internal Medicine Physician
  • Tulsa, OK
  • NPI 1336194406

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Central Texas Community Health Centers

  dba CommUnityCare

  • Family Medicine Physician
  • Austin, TX
  • NPI 1427882091
  Medicare reassignment
• Obhg Texas Holdings, P.a.

  • Obstetrics & Gynecology Physician
  • Austin, TX
  • NPI 1083917769
  Medicare reassignment
• St. John Physicians, Inc

  dba Siggins Memorial Clinic

  • Rural Health Clinic/Center
  • Barnsdall, OK
  • NPI 1033176367
  NPD
• Texas Children's Hospital

  dba Texas Children's Hospital North Austin Campus

  • Children's Hospital
  • Austin, TX
  • NPI 1194507947
  NPD (past)
• National Family Medical Associates, LLC

  dba VIPcare

  • Primary Care Clinic/Center
  • Tulsa, OK
  • NPI 1477287720
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744329600000",
    "number": "1760594808",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9835 N LAKE CREEK PKWY",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787176210",
            "telephone_number": "737-229-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9835 N LAKE CREEK PKWY",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787176210",
            "telephone_number": "737-229-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8611 N Mopac Expy",
            "address_purpose": "LOCATION",
            "city": "Austin",
            "state": "TX",
            "postal_code": "787598319",
            "country_code": "US",
            "telephone_number": "737-220-8200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "PETER",
        "middle_name": "E",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-31",
        "last_updated": "2025-04-11",
        "certification_date": "2025-04-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "TX",
            "license": "L8039",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marisa Diaz
• Olga G. Diaz, SLP
• Olivia Diaz
• Oralia Diaz
• Paul Baltazar Diaz Jr., LPC
• Steven Diaz, LVN
• Vianney Cecilia Diaz, CCC-SLP
• Viviana Diaz
• Cynthia Michel Dib
• Beatrice Dibashi, MS, RD, LD

• Obstetrics & Gynecology Physician in Austin, TX
• Providers in Austin, TX by specialty
• Obstetrics & Gynecology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.