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

Stephen A Klein, MD

Individual provider Internal Medicine Physician · NPI 1831257872

Stephen A Klein, MD is an Internal Medicine in West Nyack, New York. Graduated from New York Medical College in 1980, 46 years ago. Practices with Rockland Endocrine and Diabetes Services, PC, a 12-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
46
Trained at
New York Medical College
Licensed in
NY
In the registry since
2006
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

2 Centerock Rd
West Nyack, NY 10994-2215
Phone: (845) 703-6999
Fax: (845) 703-6297
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 151797 (NY)

Record details

NPI number1831257872
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 4, 2006
Last updated in NPPESOctober 5, 2020
Certification dateOctober 5, 2020
Mailing address155 Crystal Run Rd, Middletown, NY 10941-4028

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1980 (46 years in practice)
Group practice Rockland Endocrine And Diabetes Services, P.C. — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in West Nyack