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

Dr. William Spencer Grigg, DO

Individual provider Internal Medicine Physician · NPI 1578050266

Dr. William Spencer Grigg, DO is an Internal Medicine in Rochester, New York. Qualified in 2018, 8 years ago. Practices with Virtumedex of Florida PA, a 4-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Colorado.

Years since qualifying
8
Licensed in
CO
In the registry since
2018
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

601 Elmwood Avenue Box 679
Rochester, NY 14642
Phone: (858) 275-4290
Fax: (585) 473-1573
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence DR.0062850 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence TL.0007279 (CO)
Hospitalist Physician Taxonomy 208M00000X · Licence DR.0062850 (CO)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence TL.0007279 (CO)

Record details

NPI number1578050266
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 18, 2018
Last updated in NPPESJuly 22, 2024
Certification dateJanuary 26, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Virtumedex Of Florida Pa — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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