John Fasig, MD
NPI 1104973080 · Anatomic Pathology & Clinical Pathology Physician · Brentwood, TN
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Fasig, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Brentwood, TN (NPI 1104973080).
Provider details
- NPI number
- 1104973080
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 43243 (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
19 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
6,182 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 2,099 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 668 | $25 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 563 | $63 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 412 | $25 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 384 | $73 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 283 | $11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-04
- Last updated
- 2019-08-14
Frequently asked questions
- What is John Fasig's NPI number?
- John Fasig's National Provider Identifier (NPI) is 1104973080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Fasig's specialty?
- John Fasig is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is John Fasig located?
- John Fasig's practice location on file with NPPES is 5301 Virginia Way, Brentwood, TN 37027-7541.
- What is John Fasig's phone number?
- The practice phone number listed in the NPPES registry for John Fasig is (615) 221-4474.
- Does John Fasig accept Medicare?
- John Fasig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Fasig's NPI active?
- Yes — John Fasig's NPI (1104973080) is active in the NPPES registry as of the last update on 2019-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.