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

Mark Siegel, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1700861598

Mark Siegel, MD is a Pulmonary Disease in New Haven, Connecticut. Graduated from Columbia University College of Physicians and Surgeons in 1998, 28 years ago. Practices with Yale University, a 2,618-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
28
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
CT
In the registry since
2005
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

789 Howard Ave Fitkin Bldg 2ND Fl
New Haven, CT 06519-1304
Phone: (203) 785-4198
Fax: (203) 737-5453
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 033081 (CT)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 033081 (CT)

Record details

NPI number1700861598
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 14, 2005
Last updated in NPPESApril 5, 2011
Mailing address789 Howard Ave, Fitkin Building, 2nd Floor, New Haven, CT 06519-1304

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1998 (28 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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