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Dermatology

Joanna Gammons, DO

Sees patients in Royal Oak, MI · Michigan

Summary

Dr. Joanna Gammons, DO is a dermatologist at 1200 W 11 Mile Rd, Royal Oak, MI 48067. Phone: (248) 439-6375. Accepts Medicare assignment. In 2024, Joanna Gammons had 195 Original Medicare patients and 4,892 services. NPI 1255371670. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Dermatologist (Medicare lists Dermatology)
  • Address: 1200 W 11 Mile Rd, Royal Oak, MI 48067 · Directions
  • Phone: (248) 439‑6375
  • Medicare: Accepts Medicare assignment
  • Group practice: Michigan Healthcare Professionals PC
  • Medical school: At Still University Of Health Sciences, College Of Osteo Med, Kirksville · graduated 1999 (27 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Joanna Gammons, 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 Joanna Gammons accept Medicare assignment?
Yes. Medicare's clinician data says Joanna Gammons 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 Joanna Gammons see?
In 2024, CMS data shows 195 Original Medicare patients and 4,892 services for Joanna Gammons. This counts Original Medicare only and measures volume, not quality.
What is Joanna Gammons's NPI number?
1255371670. 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 Joanna Gammons, 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 patients195
Services billed to Medicare4,892
Different services or procedures34
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Destruction of precancer skin growth, 2-14 growths (17003)2,128 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)855 services
  3. Destruction of skin growth, 1-14 growths (17110)851 services
  4. Destruction of precancer skin growth, 1 growth (17000)395 services
  5. Destruction of precancer skin growth, 15 or more growths (17004)192 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 pressure72%
  • Arthritis50%
  • Diabetes33%
  • Anxiety24%
  • Ischemic heart disease21%

Practice locations

Addresses where Joanna Gammons is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Joanna Gammons as a member of this group (CMS data updated October 2, 2026).

  • Michigan Healthcare Professionals PC529 clinicians in the group

Specialties

Find other Dermatology doctors in Michigan →

Other dermatologists in Royal Oak

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

All dermatologists in Royal Oak →

Other clinicians in Michigan Healthcare Professionals PC

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

Clinician information

CredentialDO
Medical schoolAt Still University Of Health Sciences, College Of Osteo Med, Kirksville
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255371670
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