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Allergy/Immunology

Matthew I. Fogg, MD

Sees patients in Chalfont, PA · Philadelphia, PA · Pennsylvania

Summary

Dr. Matthew I. Fogg, MD is an allergist and immunologist at 1100 Horizon Cir, Chalfont, PA 18914. Phone: (215) 394-0400. Accepts Medicare assignment. In 2024, Matthew I. Fogg had 56 Original Medicare patients and 1,932 services. NPI 1114920220. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 1100 Horizon Cir, Chalfont, PA 18914 · Directions (1 more location)
  • Phone: (215) 394‑0400
  • Medicare: Accepts Medicare assignment
  • Group practice: Advocare, LLC
  • Medical school: New York University School Of Medicine · graduated 1999 (27 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Matthew I. Fogg, 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 Matthew I. Fogg accept Medicare assignment?
Yes. Medicare's clinician data says Matthew I. Fogg 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 Matthew I. Fogg see?
In 2024, CMS data shows 56 Original Medicare patients and 1,932 services for Matthew I. Fogg. This counts Original Medicare only and measures volume, not quality.
What is Matthew I. Fogg's NPI number?
1114920220. 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 Matthew I. Fogg, 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 patients56
Services billed to Medicare1,932
Different services or procedures17
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Professional service for preparation and provision of 1 or more antigens (95165)220 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)47 services
  3. Test to measure rate of airflow (94375)36 services
  4. Administration and interpretation of patient-focused health risk assessment (96160)23 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)19 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 pressure54%
  • Arthritis45%
  • Asthma45%
  • Depression27%
  • Ischemic heart disease21%

Practice locations

Addresses where Matthew I. Fogg is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Matthew I. Fogg as a member of this group (CMS data updated October 2, 2026).

  • Advocare, LLC386 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 Advocare, LLC

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

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114920220
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians