Peter Sadow, M.D., PH.D.
NPI 1154493351 · Anatomic Pathology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Sadow, M.D., PH.D. is a Anatomic Pathology Physician provider in Boston, MA (NPI 1154493351).
Provider details
- NPI number
- 1154493351
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 231642 (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
2,392 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 | 744 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 353 | $28 |
| Pathology Examination of Specimen During Surgery, First Tissue Block88331 | 339 | $64 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 266 | $84 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 146 | $36 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 127 | $12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-14
- Last updated
- 2013-12-05
Frequently asked questions
- What is Peter Sadow's NPI number?
- Peter Sadow's National Provider Identifier (NPI) is 1154493351, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Sadow's specialty?
- Peter Sadow is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Sadow located?
- Peter Sadow's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Peter Sadow's phone number?
- The practice phone number listed in the NPPES registry for Peter Sadow is (617) 573-3159.
- Does Peter Sadow accept Medicare?
- Peter Sadow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Sadow's NPI active?
- Yes — Peter Sadow's NPI (1154493351) is active in the NPPES registry as of the last update on 2013-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.