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

Dr. Mark A Seldon, MD

Individual provider Cardiovascular Disease Physician · NPI 1174515571

Dr. Mark A Seldon, MD is an Internal Medicine in New York, New York. Qualified in 1972, 54 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in New York.

Years since qualifying
54
Licensed in
NY
In the registry since
2005
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

345 E 37th St Ste 314
New York, NY 10016-3256
Phone: (212) 367-8000
Fax: (212) 367-0919
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 117243 (NY)

Record details

NPI number1174515571
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 22, 2005
Last updated in NPPESDecember 16, 2025
Certification dateDecember 16, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 1972 (54 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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