Thomas Fay
NPI 1528592789 · Anatomic Pathology & Clinical Pathology Physician · Maryville, IL
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Fay is a Anatomic Pathology & Clinical Pathology Physician provider in Maryville, IL (NPI 1528592789).
Provider details
- NPI number
- 1528592789
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 2020041595 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
871 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 | 517 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 105 | $26 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 59 | $32 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 52 | $11 |
| Microscopic Genetic Analysis of Tumor, Manual88360 | 35 | $39 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 29 | $76 |
Practice location
Mailing address
Additional practice locations (2)
- 1402 S Grand BlvdSaint Louis, MO 63104-1004Phone: (314) 577-8694Fax: (314) 577-8374
- 1201 S Grand BlvdSaint Louis, MO 63104-1016Phone: (618) 391-6140
Registry dates
- Enumerated
- 2017-04-14
- Last updated
- 2022-05-27
- Certified
- 2022-05-27
Frequently asked questions
- What is Thomas Fay's NPI number?
- Thomas Fay's National Provider Identifier (NPI) is 1528592789, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Fay's specialty?
- Thomas Fay is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Fay located?
- Thomas Fay's practice location on file with NPPES is 6800 State Route 162, Maryville, IL 62062-8500.
- What is Thomas Fay's phone number?
- The practice phone number listed in the NPPES registry for Thomas Fay is (618) 391-6140.
- Does Thomas Fay accept Medicare?
- Thomas Fay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Fay's NPI active?
- Yes — Thomas Fay's NPI (1528592789) is active in the NPPES registry as of the last update on 2022-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.