Seymour Rosen, M.D.
NPI 1134234032 · Anatomic Pathology & Clinical Pathology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seymour Rosen, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Boston, MA (NPI 1134234032).
Provider details
- NPI number
- 1134234032
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 30593 (MA)
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
636 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) |
|---|---|---|
| Antibody Evaluation, Each Additional Single Antibody Stain Procedure88350 | 360 | $30 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 146 | $12 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 44 | $38 |
| Antibody Evaluation, Initial Single Antibody Stain Procedure88346 | 44 | $37 |
| Electron Microscopy for Diagnosis88348 | 42 | $79 |
Typical Medicare-allowed amounts for these services range $12–$79 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Seymour Rosen's NPI number?
- Seymour Rosen's National Provider Identifier (NPI) is 1134234032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seymour Rosen's specialty?
- Seymour Rosen is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Seymour Rosen located?
- Seymour Rosen's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215-5400.
- What is Seymour Rosen's phone number?
- The practice phone number listed in the NPPES registry for Seymour Rosen is (617) 667-4344.
- Does Seymour Rosen accept Medicare?
- Seymour Rosen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seymour Rosen's NPI active?
- Yes — Seymour Rosen's NPI (1134234032) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.