John Adams, M.D.
NPI 1578542338 · Infectious Disease Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Adams, M.D. is a Infectious Disease Physician provider in Knoxville, TN (NPI 1578542338).
Provider details
- NPI number
- 1578542338
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD018808 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
483 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 183 | $73 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 69 | $117 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 50 | $120 |
| 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 | 43 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 35 | $9 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 62 | 22 |
| Elviteg/Cob/Emtri/Tenof Alafenbrand: Genvoya | 60 | — |
| Cefuroxime Axetilbrand: Cefuroxime | 53 | — |
| Emtricitab/Rilpiviri/Tenof Alabrand: Odefsey | 51 | — |
| Cefazolin Sodium | 37 | — |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 36 | — |
| Vancomycin Hcl | 34 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-11
- Last updated
- 2025-06-13
- Certified
- 2021-07-19
Frequently asked questions
- What is John Adams's NPI number?
- John Adams's National Provider Identifier (NPI) is 1578542338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Adams's specialty?
- John Adams is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Adams located?
- John Adams's practice location on file with NPPES is 501 19th Street, Knoxville, TN 37916.
- What is John Adams's phone number?
- The practice phone number listed in the NPPES registry for John Adams is (865) 331-9160.
- Does John Adams accept Medicare?
- John Adams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Adams's NPI active?
- Yes — John Adams's NPI (1578542338) is active in the NPPES registry as of the last update on 2025-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.