Active NPI
Fatih Ayvali, MD
- Hematology & Oncology Physician
- Dallas, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- V6260
- Practice address
- 6201 Harry Hines Blvd
Dallas, TX 75235-5202 - Phone
- (214) 633-5555
- NPI assigned
- May 17, 2021
- Last updated
- Sep 3, 2025
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | NM2024-0922 | NM | |
| Hematology & Oncology Physician | 207RH0003X | V6260 | TX | Primary |
Addresses
Primary practice location
6201 Harry Hines Blvd
Dallas, TX 75235-5202
Mailing address
PO Box 845347
Dallas, TX 75284-7208
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OK, NM, TX
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Other, 2016
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1923 S Utica Ave
Tulsa, OK 74104-6520
Phone (918) 744-3131
300 Rockefeller Dr
Muskogee, OK 74401-5075
Phone (918) 684-2101
6201 Harry Hines Blvd
Dallas, TX 75235-5202
Phone (214) 633-5555
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| NM2024-0922 | NM | MD | Internal Medicine Physician |
| V6260 | TX | MD | Hematology & Oncology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Usacs Observation Medicine Services of Oklahoma, LLC | Single Specialty | Current | Accepting new patients |
| The University of Texas Southwestern Medical Center at Dallas | Current | Accepting new patients | |
| Signify Health, LLC | Single Specialty | Current | Accepting new patients |
| University of Texas Southwestern Medical Center at Dallas | Single Specialty | Current | Accepting new patients |
| St John Medical Center Inc | Past | Accepting new patients |
Locations
500 Marquette Ave NW
Ste 1200
Albuquerque, NM 87102
Phone (505) 295-6685
300 Rockefeller Dr
Muskogee, OK 74401
Phone (918) 682-5501
10601 S Western Ave
Ste 100
Oklahoma City, OK 73170
6161 S Yale Ave
Tulsa, OK 74136
Phone (918) 494-2200
2201 Inwood Rd
Dallas, TX 75235
Phone (214) 645-2563
4055 Valley View Ln
Ste 400
Dallas, TX 75244
Phone (469) 466-7037
4055 Valley View Ln
Ste 700
Dallas, TX 75244
Phone (469) 466-7420
6201 Harry Hines Blvd
Dallas, TX 75235
Phone (214) 633-4700
5323 Harry Hines Blvd
Ut Southwest Medical Center, TX 75390
Organizations & group practices 5
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.
-
- Anesthesiology Physician
- Dallas, TX
- NPI 1942270566
Single Specialty
-
- Emergency Medicine Physician
- Tulsa, OK
- NPI 1326739111
Single Specialty
-
- Clinical Medical Laboratory
- Dallas, TX
- NPI 1396832713
-
- General Acute Care Hospital
- Tulsa, OK
- NPI 1154417368
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba UT Southwestern University Hospital
- General Acute Care Hospital
- Dallas, TX
- NPI 1285798918
-
- General Acute Care Hospital
- Tulsa, OK
- NPI 1154417368
-
- Rehabilitation Hospital Unit
- Tulsa, OK
- NPI 1578656161
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1621209600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1756857600000",
"number": "1316511157",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 845347",
"city": "DALLAS",
"state": "TX",
"postal_code": "752847208"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6201 HARRY HINES BLVD",
"city": "DALLAS",
"state": "TX",
"postal_code": "752355202",
"telephone_number": "214-633-5555"
}
],
"practiceLocations": [],
"basic": {
"last_name": "AYVALI",
"first_name": "FATIH",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2021-05-17",
"last_updated": "2025-09-03",
"certification_date": "2025-09-03",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "NM",
"license": "NM2024-0922",
"primary": false
},
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "TX",
"license": "V6260",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Dallas, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 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.