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DR. RACHEL T DIAZ DO
NPI 1326614918
Family Medicine in Oklahoma City, OK

Active since June 03, 2021PECOS EnrolledAccepts Medicare Assignment
309 S ANN ARBOR AVE, OKLAHOMA CITY, OK 73128(405) 948-4900(405) 948-4933 Get Directions Write a Review

NPPES record last updated: April 14, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 14, 2026, Nov 13, 2024, Jun 7, 2024 and 2 more (5 updates tracked since 2021).

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

NPI1326614918
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. RACHEL T DIAZCredential: DO
Location Address309 S ANN ARBOR AVEOklahoma City, OK 73128-1112
Mailing Address4913 W Reno AveOklahoma City, OK 73127-6339 · (405) 948-4900 · Fax (405) 948-4933
Phone(405) 948-4900
Fax(405) 948-4933
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateJune 3, 2021
Last NPPES UpdateApril 14, 20265 updates tracked since enumeration
NPPES CertifiedApril 14, 2026
✔ NPI 1326614918 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in OK · 7707
Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

309 S ANN ARBOR AVE, Oklahoma City, OK 73128
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Mending Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID749715100
PECOS Enrollment IDI20241121002152, I20241122002763
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$82.46 typical visit price
range $53.00 – $162.61
Typical copayment $20.61 (range $13.25 – $40.65)
Most-billed visit code 99203
Established Patient
$94.27 typical visit price
range $16.68 – $132.40
Typical copayment $23.56 (range $4.17 – $33.10)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

HOAI NGUYEN PA-C
Physician Assistant
309 S ANN ARBOR AVE
OKLAHOMA CITY, OK 73128
Oklahoma County (405) 948-4900
MORGAN MASTERSON
Pharmacist (Geriatric)
309 S ANN ARBOR AVE
OKLAHOMA CITY, OK 73128
Oklahoma County (405) 948-4900
DR. JONKEETA ALICE LEWIS MD
Family Medicine
309 S ANN ARBOR AVE
OKLAHOMA CITY, OK 73128
Oklahoma County (405) 948-4900
CENTRAL OKLAHOMA AMERICAN INDIAN HEALTH COUNCIL, INC.
Clinic/Center
309 S ANN ARBOR AVE
OKLAHOMA CITY, OK 73128
Oklahoma County (405) 948-4900
MRS. CHRISTIN NICOLE KHORSAND-NIA RN CASE MANAGER
Registered Nurse (Case Management)
309 S ANN ARBOR AVE
OKLAHOMA CITY, OK 73128
Oklahoma County (405) 948-4900
SHARI DEE CORNELIUS RN
Registered Nurse (Case Management)
309 S ANN ARBOR AVE
OKLAHOMA CITY, OK 73128
Oklahoma County (405) 948-4900
TRAVON MOORE
Community Health Worker
309 S ANN ARBOR AVE
OKLAHOMA CITY, OK 73128
Oklahoma County (405) 905-4787
DR. MICHAEL CORWIN HARDING MD, MPH
Family Medicine
309 S ANN ARBOR AVE
OKLAHOMA CITY, OK 73128
Oklahoma County (405) 948-4900

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.

What insurance does Rachel Diaz accept?

Health plans from Medica and Mending Health 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 with the weekly NPPES data releases published by CMS.