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

Family Practice

Mark G. Weisenfluh, MD

Works at hospitals in Erie, PA · Pennsylvania

Summary

Dr. Mark G. Weisenfluh, MD is a family doctor at 201 State St, Erie, PA 16550. Phone: (814) 877-6000. Accepts Medicare assignment. In 2024, Mark G. Weisenfluh had 270 Original Medicare patients and 661 services. NPI 1063414613. 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: 201 State St, Erie, PA 16550 · Directions (2 more locations)
  • Phone: (814) 877‑6000
  • Medicare: Accepts Medicare assignment
  • Hospital: UPMC Hamot
  • Group practice: Regional Health Services Inc
  • Medical school: Hahnemann University College Of Medicine · graduated 1988 (38 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Mark G. Weisenfluh, 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 Mark G. Weisenfluh accept Medicare assignment?
Yes. Medicare's clinician data says Mark G. Weisenfluh 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 Mark G. Weisenfluh see?
In 2024, CMS data shows 270 Original Medicare patients and 661 services for Mark G. Weisenfluh. This counts Original Medicare only and measures volume, not quality.
What is Mark G. Weisenfluh's NPI number?
1063414613. 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 Mark G. Weisenfluh, 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 patients270
Services billed to Medicare661
Different services or procedures10
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)351 services
  2. Hospital discharge day management, more than 30 minutes (99239)94 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)79 services
  4. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)57 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)43 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%
  • Heart failure55%
  • Ischemic heart disease53%
  • Chronic kidney disease53%

Hospitals where Mark G. Weisenfluh works

Medicare's Facility Affiliation Data lists Mark G. Weisenfluh 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.

  • UPMC HamotErie, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390063

Practice locations

Addresses where Mark G. Weisenfluh is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mark G. Weisenfluh as a member of this group (CMS data updated October 2, 2026).

  • Regional Health Services Inc568 clinicians in the group

Specialties

Find other Family Practice doctors in Pennsylvania →

Other family doctors in Erie

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

All family doctors in Erie →

Other clinicians in Regional Health Services Inc

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

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063414613
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