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Internal Medicine

Michelle A. Griffin, MD

Works at hospitals in Orlando, FL · Florida

Summary

Dr. Michelle A. Griffin, MD is an internal medicine doctor at 52 W Underwood St, Orlando, FL 32806. Phone: (407) 841-5111. Accepts Medicare assignment. NPI 1235825217. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 52 W Underwood St, Orlando, FL 32806 · Directions
  • Phone: (407) 841‑5111
  • Medicare: Accepts Medicare assignment
  • Hospital: Orlando Health
  • Group practice: Orlando Health Medical Group Inc
  • Medical school: graduated 2023 (3 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Michelle A. Griffin, 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 Michelle A. Griffin accept Medicare assignment?
Yes. Medicare's clinician data says Michelle A. Griffin 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.
What is Michelle A. Griffin's NPI number?
1235825217. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michelle A. Griffin works

Medicare's Facility Affiliation Data lists Michelle A. Griffin 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.

  • Orlando HealthOrlando, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100006

Practice locations

Addresses where Michelle A. Griffin is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Michelle A. Griffin as a member of this group (CMS data updated October 2, 2026).

  • Orlando Health Medical Group Inc2,287 clinicians in the group

Specialties

Find other Internal Medicine doctors in Florida →

Other internal medicine doctors in Orlando

Clinicians with the same Medicare primary specialty in Orlando, FL — not a recommendation.

All internal medicine doctors in Orlando →

Other clinicians in Orlando Health Medical Group Inc

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

Clinician information

CredentialMD
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1235825217
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians