IndividualActive
Margaret-Mary Holyst, MD
NPI 1043575210 · Rheumatology Physician · Rochester, NY
Margaret-Mary Holyst, MD is a Rheumatology Physician provider in Rochester, NY (NPI 1043575210).
Provider details
- NPI number
- 1043575210
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 180283 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(79/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
400 Red Creek Dr
Suite 240
Rochester, NY 14623-4273
Phone: (585) 486-0901
Fax: (585) 340-5399
Street-level locationGet directions
Mailing address
601 Elmwood Ave
Rochester, NY 14642-0001
Registry dates
- Enumerated
- 2012-07-12
- Last updated
- 2012-07-12
Frequently asked questions
- What is Margaret-Mary Holyst's NPI number?
- Margaret-Mary Holyst's National Provider Identifier (NPI) is 1043575210, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret-Mary Holyst's specialty?
- Margaret-Mary Holyst is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret-Mary Holyst located?
- Margaret-Mary Holyst's practice location on file with NPPES is 400 Red Creek Dr, Rochester, NY 14623-4273.
- What is Margaret-Mary Holyst's phone number?
- The practice phone number listed in the NPPES registry for Margaret-Mary Holyst is (585) 486-0901.
- Is Margaret-Mary Holyst's NPI active?
- Yes — Margaret-Mary Holyst's NPI (1043575210) is active in the NPPES registry as of the last update on 2012-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.