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

Dr. Glenn Legler, MD

Individual provider Internal Medicine Physician · NPI 1578540886

Dr. Glenn Legler, MD is an Internal Medicine in Mahopac, New York. Graduated from University of Maryland School of Medicine in 1987, 39 years ago. Practices with Northern Medical Group, PLLC, a 38-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
39
Trained at
University of Maryland School of Medicine
Licensed in
NY
In the registry since
2005
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

888 Route 6
Mahopac, NY 10541-6201
Phone: (845) 628-1492
Fax: (855) 703-7570
Show map & directions

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

Additional practice locations (1)

  • 111 Clock Tower Cmns, Brewster, NY 10509-4055 — (845) 279-5187

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 175127 (NY)

Record details

NPI number1578540886
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 28, 2005
Last updated in NPPESJanuary 28, 2026
Certification dateJanuary 28, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Northern Medical Group, Pllc — 38 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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