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Allergy/Immunology

Larisa B. Fritz, MD

Works at hospitals in Carlisle, PA · Hanover, PA · Harrisburg, PA · Pennsylvania

Summary

Dr. Larisa B. Fritz, MD is an allergist and immunologist at 21 Waterford Dr, UPMC Pinnacle Allergy and Immunology, Mechanicsburg, PA 17050. Phone: (717) 988-9180. Accepts Medicare assignment. In 2024, Larisa B. Fritz had 73 Original Medicare patients and 1,066 services. NPI 1235441999. 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: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 21 Waterford Dr, UPMC Pinnacle Allergy and Immunology, Mechanicsburg, PA 17050 · Directions (4 more locations)
  • Phone: (717) 988‑9180
  • Medicare: Accepts Medicare assignment
  • Hospitals: UPMC Carlisle, UPMC Hanover, UPMC Pinnacle Hospitals
  • Group practice: Pinnacle Health Medical Services
  • Medical school: graduated 1995 (31 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Larisa B. Fritz, 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 Larisa B. Fritz accept Medicare assignment?
Yes. Medicare's clinician data says Larisa B. Fritz 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 Larisa B. Fritz see?
In 2024, CMS data shows 73 Original Medicare patients and 1,066 services for Larisa B. Fritz. This counts Original Medicare only and measures volume, not quality.
What is Larisa B. Fritz's NPI number?
1235441999. 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 Larisa B. Fritz, 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 patients73
Services billed to Medicare1,066
Different services or procedures21
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Test for allergy using allergenic extract (95004)687 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)40 services
  3. Administration and interpretation of patient-focused health risk assessment (96160)24 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)24 services
  5. Test to measure expiratory airflow and volume (94010)17 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 pressure68%
  • Arthritis52%
  • Anxiety40%
  • Asthma33%
  • Diabetes25%

Hospitals where Larisa B. Fritz works

Medicare's Facility Affiliation Data lists Larisa B. Fritz 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 CarlisleCarlisle, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390058
  • UPMC HanoverHanover, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390233
  • UPMC Pinnacle HospitalsHarrisburg, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390067

Practice locations

Addresses where Larisa B. Fritz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Larisa B. Fritz as a member of this group (CMS data updated October 2, 2026).

  • Pinnacle Health Medical Services1,019 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Pennsylvania →

Other allergist and immunologists in Pennsylvania

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

All allergist and immunologists in Pennsylvania →

Other clinicians in Pinnacle Health Medical Services

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

Clinician information

CredentialMD
Graduation year1995 (31 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1235441999
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