Michael Horwath, MD, PHD
NPI 1013570415 · Hematology (Pathology) Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Horwath, MD, PHD is a Hematology (Pathology) Physician provider in Atlanta, GA (NPI 1013570415).
Provider details
- NPI number
- 1013570415
- Entity type
- Individual
- Primary specialty
- Hematology (Pathology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 01093207A (IN)
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
7 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
852 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) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 392 | $25 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 96 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 82 | $32 |
| Flow Cytometry Technique for Dna Or Cell Analysis, 16 Or More Markers88189 | 66 | $77 |
| Bone Marrow, Smear Interpretation85097 | 60 | $44 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 60 | $11 |
Practice location
Mailing address
Additional practice locations (2)
- 1701 N Senate BlvdIndianapolis, IN 46202-1239Phone: (888) 484-3258
- 350 W 11th StIndianapolis, IN 46202-4108Phone: (317) 491-6000Fax: (317) 491-6534
Registry dates
- Enumerated
- 2019-04-21
- Last updated
- 2025-06-03
- Certified
- 2025-06-03
Frequently asked questions
- What is Michael Horwath's NPI number?
- Michael Horwath's National Provider Identifier (NPI) is 1013570415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Horwath's specialty?
- Michael Horwath is listed in the NPPES registry with a primary specialty of Hematology (Pathology) Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Horwath located?
- Michael Horwath's practice location on file with NPPES is 1364 Clifton Road Ne Rm H-184, Atlanta, GA 30332.
- What is Michael Horwath's phone number?
- The practice phone number listed in the NPPES registry for Michael Horwath is (404) 727-8657.
- Does Michael Horwath accept Medicare?
- Michael Horwath is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Horwath's NPI active?
- Yes — Michael Horwath's NPI (1013570415) is active in the NPPES registry as of the last update on 2025-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.