Michael Barnes
NPI 1588633176 · Internal Medicine Physician · Royal Oak, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Barnes is a Internal Medicine Physician provider in Royal Oak, MI (NPI 1588633176).
Provider details
- NPI number
- 1588633176
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 4301070211 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
657 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 167 | $100 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 118 | $60 |
| 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'SG2211 | 116 | $16 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 105 | $78 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 87 | $84 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 261 | 72 |
| Rosuvastatin Calcium | 253 | 73 |
| Losartan Potassium | 248 | 63 |
| Amlodipine Besylate | 237 | 67 |
| Omeprazole | 149 | 49 |
| Alprazolam | 137 | 35 |
| Levothyroxine Sodium |
Practice location
Mailing address
Additional practice locations (1)
- 3601 W 13 Mile RdRoyal Oak, MI 48073-6712Phone: (248) 898-7999
Registry dates
- Enumerated
- 2006-03-16
- Last updated
- 2025-05-21
- Certified
- 2025-05-21
Frequently asked questions
- What is Michael Barnes's NPI number?
- Michael Barnes's National Provider Identifier (NPI) is 1588633176, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Barnes's specialty?
- Michael Barnes is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Barnes located?
- Michael Barnes's practice location on file with NPPES is 3535 W 13 Mile Rd, Royal Oak, MI 48073-6710.
- What is Michael Barnes's phone number?
- The practice phone number listed in the NPPES registry for Michael Barnes is (248) 551-3000.
- Does Michael Barnes accept Medicare?
- Michael Barnes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Barnes's NPI active?
- Yes — Michael Barnes's NPI (1588633176) is active in the NPPES registry as of the last update on 2025-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.