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Family Practice

Hoang Nguyen, MD

Works at hospitals in Oklahoma City, OK · Oklahoma

Summary

Dr. Hoang Nguyen, MD is a family doctor at 111 N Post Rd C, Mercy Clinic, Midwest City, OK 73130. Phone: (405) 455-4342. Accepts Medicare assignment. In 2024, Hoang Nguyen had 151 Original Medicare patients and 282 services. NPI 1679619712. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 111 N Post Rd C, Mercy Clinic, Midwest City, OK 73130 · Directions
  • Phone: (405) 455‑4342
  • Medicare: Accepts Medicare assignment
  • Hospital: Mercy Hospital Oklahoma City, Inc
  • Group practice: Mercy Clinic Oklahoma Communities
  • Medical school: graduated 1991 (35 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Hoang Nguyen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Hoang Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Hoang Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Hoang Nguyen see?
In 2024, CMS data shows 151 Original Medicare patients and 282 services for Hoang Nguyen. This counts Original Medicare only and measures volume, not quality.
What is Hoang Nguyen's NPI number?
1679619712. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Hoang Nguyen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients151
Services billed to Medicare282
Different services or procedures20
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)189 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)36 services
  3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)11 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Diabetes46%
  • Ischemic heart disease35%
  • Arthritis31%
  • Depression26%

Hospitals where Hoang Nguyen works

Medicare's Facility Affiliation Data lists Hoang Nguyen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Hoang Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hoang Nguyen as a member of this group (CMS data updated October 2, 2026).

  • Mercy Clinic Oklahoma Communities649 clinicians in the group

Specialties

Find other Family Practice doctors in Oklahoma →

Other family doctors in Midwest City

Clinicians with the same Medicare primary specialty in Midwest City, OK — not a recommendation.

All family doctors in Midwest City →

Other clinicians in Mercy Clinic Oklahoma Communities

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1991 (35 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679619712
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians