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

Dr. Gregory Nicholas Matwiyoff, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1932248093

Dr. Gregory Nicholas Matwiyoff, MD is a Pulmonary Disease in Reno, Nevada. Graduated from University of New Mexico School of Medicine in 1998, 28 years ago. Practices with Community Care Services LLC, a 628-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Nevada.

Years since qualifying
28
Trained at
University of New Mexico School of Medicine
Licensed in
NV
In the registry since
2007
Specialties on file
3
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

1500 E 2nd St Ste 302
Reno, NV 89502-1198
Phone: (775) 982-5000
Fax: (775) 982-3900
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10085 Double R Blvd Ste 325, Reno, NV 89521-4832 — (775) 982-5000

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 25119 (NV)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 25119 (NV)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 25119 (NV)

Record details

NPI number1932248093
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 5, 2007
Last updated in NPPESMarch 5, 2026
Certification dateMarch 5, 2026

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesSLEEP MEDICINE
Medical schoolUNIVERSITY OF NEW MEXICO SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Community Care Services Llc — 628 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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