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

Individual provider Internal Medicine Physician · NPI 1295849545

Ruth Blash, MD is an Internal Medicine in Fishkill, New York. Qualified in 1991, 35 years ago. Practices with Optum Medical Care PC, a 1,018-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
35
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

600 Westage Business Ctr Dr
Fishkill, NY 12524-2281
Phone: (845) 231-5600
Fax: (845) 231-5489
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 375 Windsor Hwy, New Windsor, NY 12553-7902 — (845) 565-1771
  • 375 Windsor Hwy, New Windsor, NY 12553-7902 — (845) 565-1771

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 200863 (NY)

Record details

NPI number1295849545
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 17, 2006
Last updated in NPPESMarch 17, 2018
Mailing address110 S Bedford Rd, Mount Kisco, NY 10549-3446

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Optum Medical Care Pc — 1018 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Fishkill