Ali Tamsen, MD
NPI 1285687269 · Anatomic Pathology Physician · Southampton, NY
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ali Tamsen, MD is a Anatomic Pathology Physician provider in Southampton, NY (NPI 1285687269).
Provider details
- NPI number
- 1285687269
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 181348 (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 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
6,757 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 | 3,738 | $77 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 1,709 | $88 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 948 | $129 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 89 | $40 |
| Pap Test88141 | 59 | $27 |
| Pap Test, Automated Thin Layer Preparation; Automated System and Manual Rescreening88175 | 58 | $26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2023-12-08
- Certified
- 2023-12-08
Frequently asked questions
- What is Ali Tamsen's NPI number?
- Ali Tamsen's National Provider Identifier (NPI) is 1285687269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ali Tamsen's specialty?
- Ali Tamsen is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Ali Tamsen located?
- Ali Tamsen's practice location on file with NPPES is 240 Meeting House Ln, Southampton, NY 11968-5009.
- What is Ali Tamsen's phone number?
- The practice phone number listed in the NPPES registry for Ali Tamsen is (631) 726-8268.
- Does Ali Tamsen accept Medicare?
- Ali Tamsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ali Tamsen's NPI active?
- Yes — Ali Tamsen's NPI (1285687269) is active in the NPPES registry as of the last update on 2023-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.