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Internal Medicine

Nathaniel Hayward Iii, MD

Works at hospitals in Arlington, TX · Texas

Summary

Dr. Nathaniel Hayward Iii, MD is an internal medicine doctor at 5405 S Cooper St, Arlington, TX 76017. Phone: (817) 465-4928. Accepts Medicare assignment. In 2024, Nathaniel Hayward Iii had 98 Original Medicare patients and 496 services. NPI 1467862946. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 5405 S Cooper St, Arlington, TX 76017 · Directions (1 more location)
  • Phone: (817) 465‑4928
  • Medicare: Accepts Medicare assignment
  • Hospital: Texas Health Arlington Memorial Hospital
  • Group practice: Primary Health Physicians PLLC (+1 more)
  • Medical school: graduated 2014 (12 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Nathaniel Hayward Iii, 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 Nathaniel Hayward Iii accept Medicare assignment?
Yes. Medicare's clinician data says Nathaniel Hayward Iii 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 Nathaniel Hayward Iii see?
In 2024, CMS data shows 98 Original Medicare patients and 496 services for Nathaniel Hayward Iii. This counts Original Medicare only and measures volume, not quality.
What is Nathaniel Hayward Iii's NPI number?
1467862946. 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 Nathaniel Hayward Iii, 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 patients98
Services billed to Medicare496
Different services or procedures15
Participating Medicare providerYes
Average age of these patients80

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)101 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)57 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)29 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%
  • Arthritis57%
  • Chronic kidney disease37%
  • Ischemic heart disease35%
  • Diabetes34%

Hospitals where Nathaniel Hayward Iii works

Medicare's Facility Affiliation Data lists Nathaniel Hayward Iii 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 Nathaniel Hayward Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nathaniel Hayward Iii as a member of these groups (CMS data updated October 2, 2026).

  • Primary Health Physicians PLLC239 clinicians in the group
  • Arlington Physicians PA5 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Arlington

Clinicians with the same Medicare primary specialty in Arlington, TX — not a recommendation.

All internal medicine doctors in Arlington →

Other clinicians in Primary Health Physicians PLLC

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

Clinician information

CredentialMD
Graduation year2014 (12 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467862946
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