Eileen Shanahan, M.D.
NPI 1083642508 · Anatomic Pathology Physician · Princeton, NJ
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eileen Shanahan, M.D. is a Anatomic Pathology Physician provider in Princeton, NJ (NPI 1083642508).
Provider details
- NPI number
- 1083642508
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MA06912800 (NJ)
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
20 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
556 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 | 345 | $39 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 79 | $29 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 53 | $28 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 34 | $13 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 26 | $36 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 19 | $12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Eileen Shanahan's NPI number?
- Eileen Shanahan's National Provider Identifier (NPI) is 1083642508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eileen Shanahan's specialty?
- Eileen Shanahan is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Eileen Shanahan located?
- Eileen Shanahan's practice location on file with NPPES is 253 Witherspoon St, Princeton, NJ 08540-3211.
- What is Eileen Shanahan's phone number?
- The practice phone number listed in the NPPES registry for Eileen Shanahan is (609) 497-4351.
- Does Eileen Shanahan accept Medicare?
- Eileen Shanahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eileen Shanahan's NPI active?
- Yes — Eileen Shanahan's NPI (1083642508) 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.