John Mackay, MD
NPI 1942267844 · Family Medicine Physician · Tallahassee, FL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mackay, MD is a Family Medicine Physician provider in Tallahassee, FL (NPI 1942267844).
Provider details
- NPI number
- 1942267844
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME58246 (FL)
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
1,890 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 283 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 254 | $125 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 215 | $22 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 214 | $88 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 168 | $14 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 117 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 302 | 72 |
| Levothyroxine Sodium | 283 | 61 |
| Ezetimibe | 234 | 63 |
| Atorvastatin Calcium | 202 | 49 |
| Metoprolol Succinate | 116 | 27 |
| Amlodipine Besylate | 115 | 28 |
| Alprazolam |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-26
- Last updated
- 2013-04-08
Frequently asked questions
- What is John Mackay's NPI number?
- John Mackay's National Provider Identifier (NPI) is 1942267844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mackay's specialty?
- John Mackay is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Mackay located?
- John Mackay's practice location on file with NPPES is 2412 W Plaza Dr, Tallahassee, FL 32308-5325.
- What is John Mackay's phone number?
- The practice phone number listed in the NPPES registry for John Mackay is (850) 877-8171.
- Does John Mackay accept Medicare?
- John Mackay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mackay's NPI active?
- Yes — John Mackay's NPI (1942267844) is active in the NPPES registry as of the last update on 2013-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.