Geoffrey Hahm, M.D.
NPI 1871543942 · Anatomic Pathology & Clinical Pathology Physician · Kettering, OH
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Geoffrey Hahm, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Kettering, OH (NPI 1871543942).
Provider details
- NPI number
- 1871543942
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35073158 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,272 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 1,155 | $66 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 768 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 388 | $26 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 243 | $32 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 217 | $96 |
| Protein Measurement, Serum84165 | 189 | $17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 75 Sylvania DrDayton, OH 45440-3237Phone: (937) 320-5050
Registry dates
- Enumerated
- 2006-05-11
- Last updated
- 2026-02-09
- Certified
- 2026-02-09
Frequently asked questions
- What is Geoffrey Hahm's NPI number?
- Geoffrey Hahm's National Provider Identifier (NPI) is 1871543942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Geoffrey Hahm's specialty?
- Geoffrey Hahm is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Geoffrey Hahm located?
- Geoffrey Hahm's practice location on file with NPPES is 3535 Southern Blvd., Kettering, OH 45429.
- What is Geoffrey Hahm's phone number?
- The practice phone number listed in the NPPES registry for Geoffrey Hahm is (937) 395-8849.
- Does Geoffrey Hahm accept Medicare?
- Geoffrey Hahm is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Geoffrey Hahm's NPI active?
- Yes — Geoffrey Hahm's NPI (1871543942) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.