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

Dr. Aaron Grossberg, MD, PHD

Individual provider Internal Medicine Physician · NPI 1164775334

Dr. Aaron Grossberg, MD, PHD is a Radiation Oncology in Portland, Oregon. Graduated from Oregon Health Sciences University School of Medicine in 2013, 13 years ago. Practices with University Professional Services, a 1,704-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Oregon and Texas.

Years since qualifying
13
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
OR, TX
In the registry since
2012
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3181 SW Sam Jackson Park Rd # L337
Portland, OR 97239
Phone: (503) 494-8756
Fax: (503) 346-0237
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1515 Holcombe Blvd, Houston, TX 77030-4000 — (713) 563-8488

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence MD187282 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence PG162936 (OR)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence BP10048967 (TX)

Record details

NPI number1164775334
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedOctober 24, 2012
Last updated in NPPESJanuary 28, 2022
Certification dateJanuary 28, 2022

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice University Professional Services — 1704 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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