Michael Carnahan, MD
NPI 1871607903 · Family Medicine Physician · Ardmore, OK
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Carnahan, MD is a Family Medicine Physician provider in Ardmore, OK (NPI 1871607903).
Provider details
- NPI number
- 1871607903
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 16887 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,799 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 872 | $117 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 365 | $16 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 341 | $13 |
| Automated Urinalysis Test81003 | 273 | $2 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426 | 269 | $34 |
| X-Ray of Chest, 2 Views71046 | 136 | $26 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 146 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Simvastatin | 353 | 96 |
| Levothyroxine Sodium | 345 | 89 |
| Amlodipine Besylate | 287 | 85 |
| Clonazepam | 223 | 41 |
| Losartan Potassium | 220 | 57 |
| Meloxicam | 204 | 61 |
| Omeprazole | 192 | 54 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$177 across 10 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-18
- Last updated
- 2007-07-09
Frequently asked questions
- What is Michael Carnahan's NPI number?
- Michael Carnahan's National Provider Identifier (NPI) is 1871607903, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Carnahan's specialty?
- Michael Carnahan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Carnahan located?
- Michael Carnahan's practice location on file with NPPES is 1104 Walnut Dr, Ardmore, OK 73401-2353.
- What is Michael Carnahan's phone number?
- The practice phone number listed in the NPPES registry for Michael Carnahan is (580) 226-0543.
- Does Michael Carnahan accept Medicare?
- Michael Carnahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Carnahan's NPI active?
- Yes — Michael Carnahan's NPI (1871607903) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.