Mihai Merzianu, MD
NPI 1245221001 · Anatomic Pathology & Clinical Pathology Physician · Buffalo, NY
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mihai Merzianu, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Buffalo, NY (NPI 1245221001).
Provider details
- NPI number
- 1245221001
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 002455-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
827 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) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 270 | $26 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 158 | $35 |
| Flow Cytometry Technique for Dna Or Cell Analysis, 16 Or More Markers88189 | 65 | $78 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 61 | $32 |
| Bone Marrow, Smear Interpretation85097 | 49 | $45 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 49 | $11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$36 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
Registry dates
- Enumerated
- 2005-11-02
- Last updated
- 2021-01-21
- Certified
- 2021-01-21
Frequently asked questions
- What is Mihai Merzianu's NPI number?
- Mihai Merzianu's National Provider Identifier (NPI) is 1245221001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mihai Merzianu's specialty?
- Mihai Merzianu is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Mihai Merzianu located?
- Mihai Merzianu's practice location on file with NPPES is Elm and Carlton Streets, Buffalo, NY 14263-0001.
- What is Mihai Merzianu's phone number?
- The practice phone number listed in the NPPES registry for Mihai Merzianu is (716) 845-2300.
- Does Mihai Merzianu accept Medicare?
- Mihai Merzianu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mihai Merzianu's NPI active?
- Yes — Mihai Merzianu's NPI (1245221001) is active in the NPPES registry as of the last update on 2021-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.