John Farmer, M. D.
NPI 1285695866 · Family Medicine Physician · Madisonville, KY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Farmer, M. D. is a Family Medicine Physician provider in Madisonville, KY (NPI 1285695866).
Provider details
- NPI number
- 1285695866
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- No
- License
- 33965 (KY)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,751 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 | 807 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 607 | $85 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 403 | $9 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 142 | $13 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 141 | $71 |
| X-Ray of Chest, 2 Views71046 | 111 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 233 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 908 | 223 |
| Rosuvastatin Calcium | 727 | 199 |
| Levothyroxine Sodium | 701 | 169 |
| Metoprolol Succinate | 590 | 140 |
| Amlodipine Besylate | 560 | 151 |
| Furosemide | 524 | 129 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-31
- Last updated
- 2019-05-14
Frequently asked questions
- What is John Farmer's NPI number?
- John Farmer's National Provider Identifier (NPI) is 1285695866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Farmer's specialty?
- John Farmer is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Farmer located?
- John Farmer's practice location on file with NPPES is 444 S Main St, Madisonville, KY 42431-2871.
- What is John Farmer's phone number?
- The practice phone number listed in the NPPES registry for John Farmer is (270) 821-4444.
- Does John Farmer accept Medicare?
- John Farmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Farmer's NPI active?
- Yes — John Farmer's NPI (1285695866) is active in the NPPES registry as of the last update on 2019-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.