Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Ali Tamsen, MD

Individual provider Clinical Pathology/Laboratory Medicine Physician · NPI 1285687269

Dr. Ali Tamsen, MD is a Pathology in Southampton, New York. Qualified in 1979, 47 years ago. Practices with Island Gastroenterology Consultants PC, a 13-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
47
Licensed in
NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

240 Meeting House Ln Ste #3
Southampton, NY 11968-5009
Phone: (631) 726-8268
Fax: (631) 726-8262
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology Physician (primary) Taxonomy 207ZP0101X · Licence 181348 (NY)
Clinical Pathology/Laboratory Medicine Physician Taxonomy 207ZP0105X · Licence 181348 (NY)

Record details

NPI number1285687269
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 18, 2006
Last updated in NPPESDecember 8, 2023
Certification dateDecember 8, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolOTHER
Graduated 1979 (47 years in practice)
Group practice Island Gastroenterology Consultants Pc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare