Sunil John, MD
NPI 1912952177 · Internal Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sunil John, MD is a Internal Medicine Physician provider in Knoxville, TN (NPI 1912952177).
Provider details
- NPI number
- 1912952177
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD24852 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
3,923 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 | 451 | $114 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 361 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 280 | $10 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 273 | $3 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 265 | $8 |
| Thyroxine (thyroid Chemical), Free84439 | 219 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 208 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 824 | 172 |
| Atorvastatin Calcium | 541 | 148 |
| Gabapentin | 442 | 97 |
| Rosuvastatin Calcium | 431 | 130 |
| Pantoprazole Sodium | 381 | 112 |
| Omeprazole | 330 | 94 |
| Duloxetine Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 7625 Chapman Hwy Ste 103Knoxville, TN 37920-2353Phone: (865) 632-5893Fax: (865) 374-2164
Registry dates
- Enumerated
- 2006-05-24
- Last updated
- 2025-08-20
- Certified
- 2025-08-20
Frequently asked questions
- What is Sunil John's NPI number?
- Sunil John's National Provider Identifier (NPI) is 1912952177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sunil John's specialty?
- Sunil John is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sunil John located?
- Sunil John's practice location on file with NPPES is 6600 Nightingale Ln, Knoxville, TN 37909-2754.
- What is Sunil John's phone number?
- The practice phone number listed in the NPPES registry for Sunil John is (865) 632-5885.
- Does Sunil John accept Medicare?
- Sunil John is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sunil John's NPI active?
- Yes — Sunil John's NPI (1912952177) is active in the NPPES registry as of the last update on 2025-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.