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Family Practice

Christopher J. Frocillo, DO

Sees patients in Lenox, MI · Michigan

Summary

Dr. Christopher J. Frocillo, DO is a family doctor at 66440 Gratiot Ave, Lenox, MI 48050. Phone: (586) 727-5840. Accepts Medicare assignment. In 2024, Christopher J. Frocillo had 269 Original Medicare patients and 5,114 services. NPI 1518967835. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 66440 Gratiot Ave, Lenox, MI 48050 · Directions
  • Phone: (586) 727‑5840
  • Medicare: Accepts Medicare assignment
  • Group practice: North Macomb Medical Associates PLLC
  • Medical school: Midwestern University, Chicago College Of Osteopathic Med · graduated 1996 (30 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Christopher J. Frocillo, 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 Christopher J. Frocillo accept Medicare assignment?
Yes. Medicare's clinician data says Christopher J. Frocillo 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 Christopher J. Frocillo see?
In 2024, CMS data shows 269 Original Medicare patients and 5,114 services for Christopher J. Frocillo. This counts Original Medicare only and measures volume, not quality.
What is Christopher J. Frocillo's NPI number?
1518967835. 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 Christopher J. Frocillo, 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 patients269
Services billed to Medicare5,114
Different services or procedures46
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)3,803 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)423 services
  3. 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)317 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)118 services
  5. Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg (J3420)62 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%
  • Arthritis43%
  • Anxiety34%
  • Ischemic heart disease27%
  • Diabetes26%

Practice locations

Addresses where Christopher J. Frocillo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Christopher J. Frocillo as a member of this group (CMS data updated October 2, 2026).

  • North Macomb Medical Associates PLLC4 clinicians in the group

Specialties

Find other Family Practice doctors in Michigan →

Other family doctors in Lenox

Clinicians with the same Medicare primary specialty in Lenox, MI — not a recommendation.

All family doctors in Lenox →

Other clinicians in North Macomb Medical Associates PLLC

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

Clinician information

CredentialDO
Medical schoolMidwestern University, Chicago College Of Osteopathic Med
Graduation year1996 (30 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1518967835
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