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

Roger H Karlin, MD

Individual provider Allergy & Immunology Physician · NPI 1700894177

Roger H Karlin, MD is an Internal Medicine in New Fairfield, Connecticut. Graduated from Icahn School of Medicine at Mount Sinai in 1976, 50 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
50
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CT
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.

See every abbreviation used in this directory →

Practice location Address checks out

88 Route 37
New Fairfield, CT 06812
Phone: (203) 746-2436
Fax: (203) 746-3205
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 19394 (CT)
Allergy & Immunology Physician Taxonomy 207K00000X · Licence 19394 (CT)

Record details

NPI number1700894177
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 3, 2006
Last updated in NPPESJanuary 11, 2010
Mailing address88 Route 37, New Fairfield, CT 06812

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesALLERGY/IMMUNOLOGY
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 1976 (50 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare