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

David J Hass, MD

Individual provider Gastroenterology Physician · NPI 1225177769

David J Hass, MD is a Gastroenterology in Hamden, Connecticut. Graduated from Js Weill Medical College, Cornell University in 2001, 25 years ago. Practices with Hhc Physician Services PLLC, a 136-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
25
Trained at
Js Weill Medical College, Cornell University
Licensed in
CT
In the registry since
2007
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

2200 Whitney Ave Ste 360
Hamden, CT 06518
Phone: (203) 281-4469
Fax: (203) 287-2930
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 045092 (CT)

Record details

NPI number1225177769
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 5, 2007
Last updated in NPPESMay 27, 2021
Certification dateMay 27, 2021
Mailing address2200 Whitney Ave, Suite 360, Hamden, CT 06518-3691

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolJS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduated 2001 (25 years in practice)
Group practice Hhc Physician Services Pllc — 136 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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