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Internal Medicine

George R. Zimmerman Ii, MD

Works at hospitals in Jefferson Hills, PA · Pittsburgh, PA · Pennsylvania

Summary

Dr. George R. Zimmerman Ii, MD is an internal medicine doctor at 2 Hot Meal St, Pittsburg, PA 15203. Phone: (412) 281-0322. Accepts Medicare assignment. In 2024, George R. Zimmerman Ii had 268 Original Medicare patients and 1,162 services. NPI 1447214978. 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 George R. Zimmerman Ii, 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 George R. Zimmerman Ii accept Medicare assignment?
Yes. Medicare's clinician data says George R. Zimmerman Ii 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 George R. Zimmerman Ii see?
In 2024, CMS data shows 268 Original Medicare patients and 1,162 services for George R. Zimmerman Ii. This counts Original Medicare only and measures volume, not quality.
What is George R. Zimmerman Ii's NPI number?
1447214978. 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 George R. Zimmerman Ii, 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 patients268
Services billed to Medicare1,162
Different services or procedures23
Participating Medicare providerYes
Average age of these patients73

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)435 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)231 services
  3. Influenza vaccine, trivalent derived from recombinant dna (90673)46 services
  4. Administration of influenza virus vaccine (G0008)45 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)39 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 cholesterol75%
  • High blood pressure71%
  • Arthritis43%
  • Diabetes31%
  • Ischemic heart disease24%
  • Anxiety19%

Hospitals where George R. Zimmerman Ii works

Medicare's Facility Affiliation Data lists George R. Zimmerman Ii 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 George R. Zimmerman Ii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists George R. Zimmerman Ii as a member of this group (CMS data updated October 2, 2026).

  • UPMC Community Medicine Inc736 clinicians in the group

Specialties

Find other Internal Medicine doctors in Pennsylvania →

Other internal medicine doctors in Pittsburg

Clinicians with the same Medicare primary specialty in Pittsburg, PA — not a recommendation.

All internal medicine doctors in Pittsburg →

Other clinicians in UPMC Community Medicine Inc

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

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1447214978
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