DR. NHI X NAI DO
NPI 1508449422
Internal Medicine in Oklahoma City, OK

Q: What is Nhi Nai's NPI number?

The NPI number for Nhi Nai is 1508449422. It was assigned to this individual provider in the NPPES registry on April 29, 2021.

Q: What is Nhi Nai's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Nhi Nai was last updated on August 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since April 29, 2021PECOS EnrolledAccepts Medicare Assignment

700 NE 13TH ST, OKLAHOMA CITY, OK 73104(405) 271-6651(405) 271-1476 Get Directions Write a Review

NPPES record last updated: August 14, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 14, 2025, Mar 19, 2025, Apr 7, 2022 and 1 more (4 updates tracked since 2021).

On this page

About Dr. Nhi X Nai Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NHI X NAI DO (NPI 1508449422) is an individual internal medicine provider in Oklahoma City, Oklahoma, licensed in Oklahoma (9008) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with O U Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1508449422

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. NHI X NAICredential: DO

Location Address700 NE 13TH STOklahoma City, OK 73104-5004

Mailing Address700 Ne 13th StOklahoma City, OK 73104-5004 · (405) 271-6651 · Fax (405) 271-1476

Phone(405) 271-6651

Fax(405) 271-1476

Sole ProprietorYes

Medical School CMSOtherGraduated 2021

Enumeration DateApril 29, 2021

Last NPPES UpdateAugust 14, 20254 updates tracked since enumeration

NPPES CertifiedAugust 14, 2025

✔ NPI 1508449422 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in OK · 9008

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

700 NE 13TH ST, Oklahoma City, OK 73104

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Secondary Practice Locations 2

Location 11111 Hayes AveSandusky, OH 44870-3323 · Phone (419) 502-2800

Location 21 University Of New MexicoAlbuquerque, NM 87131-0001 · Phone (505) 272-4661 · Fax (505) 272-0475

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma.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. Nhi X Nai 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 ID9537562939

PECOS Enrollment IDI20250814001434

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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

O U Medical Center

Acute Care Hospitals · Oklahoma City, OK

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370093

Location700 NE 13th StreetOklahoma City, OK 73104 · Oklahoma County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73104 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

$123.06 typical visit price

range $53.00 – $162.61

Typical copayment $30.76 (range $13.25 – $40.65)

Most-billed visit code 99204

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.

TRESSIE MCCOY DPT

Physical Therapist