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

Dr. Margaret-Mary Holyst, MD

Individual provider Rheumatology Physician · NPI 1043575210

Dr. Margaret-Mary Holyst, MD is a Rheumatology Physician in Rochester, New York. Licensed in New York. Registered with an NPI since 2012.

Licensed in
NY
In the registry since
2012
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

400 Red Creek Dr Ste 240
Rochester, NY 14623-4273
Phone: (585) 486-0901
Fax: (585) 340-5399
Show map & directions

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

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 180283 (NY)

Record details

NPI number1043575210
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2012
Last updated in NPPESJuly 12, 2012

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