Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ruth M Mattern, MD

Individual provider Ophthalmology Physician · NPI 1790719227

Ruth M Mattern, MD practises Ophthalmology in Buffalo, New York. Graduated from Harvard Medical School in 1989, 37 years ago. Practices with University Ophthalmology Services Inc, a 17-clinician group and accepts Medicare assignment. Licensed in Arizona and New York.

Years since qualifying
37
Trained at
Harvard Medical School
Licensed in
AZ, NY
In the registry since
2006
Specialties on file
2
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

1176 Main St Ross Eye Institute
Buffalo, NY 14209-2102 Not confirmed with CMS for 14 years — call before visiting
Phone: (716) 881-7900
Fax: (716) 881-4349
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 182871 (NY)
Ophthalmology Physician Taxonomy 207W00000X · Licence 32988 (AZ)

Record details

NPI number1790719227
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESJune 1, 2012

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1989 (37 years in practice)
Group practice University Ophthalmology Services Inc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients93
Services billed 199 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University Ophthalmology Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 17 clinicians in the practice; 12 are shown here.

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