Guy Clark, MD
NPI 1235160789 · Internal Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guy Clark, MD is a Internal Medicine Physician provider in Knoxville, TN (NPI 1235160789).
Provider details
- NPI number
- 1235160789
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD20063 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 293 | 23 |
| Buprenorphine Hcl/Naloxone Hclbrand: Suboxone | 46 | — |
| Ondansetronbrand: Ondansetron Odt | 23 | — |
| Nystatin | 17 | — |
| Amlodipine Besylate | 13 | — |
| Duloxetine Hcl | 11 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2021-05-25
- Certified
- 2021-05-25
Frequently asked questions
- What is Guy Clark's NPI number?
- Guy Clark's National Provider Identifier (NPI) is 1235160789, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guy Clark's specialty?
- Guy Clark is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Guy Clark located?
- Guy Clark's practice location on file with NPPES is 601 S Concord St Ste 108, Knoxville, TN 37919-3339.
- What is Guy Clark's phone number?
- The practice phone number listed in the NPPES registry for Guy Clark is (865) 292-3000.
- Does Guy Clark accept Medicare?
- Guy Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guy Clark's NPI active?
- Yes — Guy Clark's NPI (1235160789) is active in the NPPES registry as of the last update on 2021-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.