Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

William H. Harrison Iii, MD

Works at hospitals in Emporia, VA · Petersburg, VA · South Hill, VA · Virginia

Summary

Dr. William H. Harrison Iii, MD is a family doctor at 319 W Church St, Lawrenceville, VA 23868. Phone: (434) 848-0072. Accepts Medicare assignment. In 2024, William H. Harrison Iii had 151 Original Medicare patients and 1,853 services. NPI 1275710204. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about William H. Harrison 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 William H. Harrison Iii accept Medicare assignment?
Yes. Medicare's clinician data says William H. Harrison 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 William H. Harrison Iii see?
In 2024, CMS data shows 151 Original Medicare patients and 1,853 services for William H. Harrison Iii. This counts Original Medicare only and measures volume, not quality.
What is William H. Harrison Iii's NPI number?
1275710204. 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 William H. Harrison 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 patients151
Services billed to Medicare1,853
Different services or procedures23
Participating Medicare providerYes
Average age of these patients77

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)720 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)536 services
  3. Insertion of needle into vein for collection of blood sample (36415)178 services
  4. Administration of influenza virus vaccine (G0008)124 services
  5. Influenza vaccine, inactivated (90653)122 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 cholesterol41%
  • Diabetes36%
  • Arthritis27%
  • Ischemic heart disease24%
  • COPD18%

Hospitals where William H. Harrison Iii works

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

  • 319 W Church StLawrenceville, VA 23868 (434) 848‑0072
  • PO Box, Suite 748Lawrenceville, VA 23868

Specialties

Find other Family Practice doctors in Virginia →

Other family doctors in Virginia

Clinicians with the same Medicare primary specialty in Virginia — not a recommendation.

All family doctors in Virginia →

Clinician information

CredentialMD
Medical schoolVirginia Commonwealth University, School Of Medicine
Graduation year1980 (46 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275710204
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