John Guenst, M.D.
NPI 1063452902 · Internal Medicine Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Guenst, M.D. is a Internal Medicine Physician provider in Nashville, TN (NPI 1063452902).
Provider details
- NPI number
- 1063452902
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 23754 (TN)
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
2,935 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 | 539 | $70 |
| Admn Sarscov2 Vacc 1 Dose90480 | 350 | $39 |
| 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 | 335 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 225 | $84 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 213 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 133 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 806 | 222 |
| Amlodipine Besylate | 486 | 142 |
| Rosuvastatin Calcium | 388 | 110 |
| Valsartan | 336 | 94 |
| Metoprolol Succinate | 333 | 96 |
| Levothyroxine Sodium | 284 | 70 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-08
- Last updated
- 2015-05-07
Frequently asked questions
- What is John Guenst's NPI number?
- John Guenst's National Provider Identifier (NPI) is 1063452902, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Guenst's specialty?
- John Guenst is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Guenst located?
- John Guenst's practice location on file with NPPES is 4230 Harding Rd, Nashville, TN 37205-2013.
- What is John Guenst's phone number?
- The practice phone number listed in the NPPES registry for John Guenst is (615) 297-2700.
- Does John Guenst accept Medicare?
- John Guenst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Guenst's NPI active?
- Yes — John Guenst's NPI (1063452902) is active in the NPPES registry as of the last update on 2015-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.