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

Barney Rubenstein, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1356339469

Barney Rubenstein, MD is an Internal Medicine in Greenwich, New York. Graduated from Albany Medical College of Union University in 1984, 42 years ago. Practices with Glens Falls Hospital Inc, a 173-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
42
Trained at
Albany Medical College of Union University
Licensed in
NY
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.

See every abbreviation used in this directory →

Practice location Address checks out

1134 State Route 29 Greenwich Medical Ctr
Greenwich, NY 12834
Phone: (518) 692-9861
Fax: (518) 692-7947
Show map & directions

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

Additional practice locations (1)

  • 213 Main Street, Salem, NY 12865 — (518) 854-3821

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 162668 (NY)
Geriatric Medicine (Internal Medicine) Physician Taxonomy 207RG0300X · Licence 162668 (NY)

Record details

NPI number1356339469
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 12, 2005
Last updated in NPPESJune 8, 2021
Certification dateJune 8, 2021
Mailing address100 Park Street, Glens Falls Hospital - Credentialing, Glens Falls, NY 12801-4413

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGERIATRIC MEDICINE
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 1984 (42 years in practice)
Group practice Glens Falls Hospital Inc — 173 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services