DR. RACHEL T DIAZ DO
NPI 1326614918
Family Medicine in Oklahoma City, OK
About Dr. Rachel T Diaz Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RACHEL T DIAZ DO (NPI 1326614918) is an individual family medicine provider in Oklahoma City, Oklahoma, licensed in Oklahoma (7707) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Rachel T Diaz Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Rachel Diaz reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oklahoma City, OK 73127
- Reassigned Medicare billing, Texas enrollment
- 86 clinicians in this Medicare group
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 1,795 clinicians in this Medicare group
Norman, OK 73026
- Reassigned Medicare billing, Oklahoma enrollment
- 86 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73128 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OKLAHOMA CITY, OK 73128
OKLAHOMA CITY, OK 73128
OKLAHOMA CITY, OK 73128
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Rachel Diaz's NPI number?
The NPI number for Rachel Diaz is 1326614918. It was assigned to this individual provider in the NPPES registry on June 3, 2021.
Where is Rachel Diaz located?
Rachel Diaz practices at 309 S Ann Arbor Ave, Oklahoma City, OK 73128. The listed phone number is (405) 948-4900.
What is Rachel Diaz's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Rachel Diaz enrolled in Medicare?
Yes. Rachel Diaz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Rachel Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Diaz reassigns Medicare benefits to 3 organizations: Central Oklahoma American Indian Health Council, Inc. (Oklahoma City, OK), Ou Health Partners, Inc (Oklahoma City, OK) and Absentee Shawnee Tribal Health Authority, Inc. (Norman, OK). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rachel Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rachel Diaz accept?
Health plans from Blue Cross and Blue Shield of Oklahoma, Mending Health and Oscar Insurance Company list Rachel Diaz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Rachel Diaz was last updated on April 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Rachel T Diaz, DO · NPI 1326614918
Family Medicine physician in Oklahoma City, Oklahoma. Individual provider, active in the CMS NPPES registry since June 3, 2021.
## Identity
- **NPI:** 1326614918 (Entity type: Individual)
- **Enumerated:** June 3, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 7707 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 309 S ANN ARBOR AVE, Oklahoma City, OK 73128-1112
- **Phone:** (405) 948-4900 · **Fax:** (405) 948-4933
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Central Oklahoma American Indian Health Council, Inc. (NPI 1407969728, Oklahoma City, OK); Ou Health Partners, Inc (NPI 1528642642, Oklahoma City, OK); Absentee Shawnee Tribal Health Authority, Inc. (NPI 1124152962, Norman, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** April 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1326614918) · Data from the CMS NPPES public registry.