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

Robert Melvin Rifkin, MD

Individual provider Hematology & Oncology Physician · NPI 1134103476

Robert Melvin Rifkin, MD is a Hematology/Oncology in Denver, Colorado. Graduated from University of Colorado School of Medicine, Denver in 1982, 44 years ago. Practices with Yampa Valley Medical Center, a 126-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
44
Trained at
University of Colorado School of Medicine, Denver
Licensed in
CO
In the registry since
2005
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

1800 N Williams St Ste 200
Denver, CO 80218-1237
Phone: (303) 388-4876
Fax: (303) 285-5097
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 26187 (CO)

Record details

NPI number1134103476
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 30, 2005
Last updated in NPPESFebruary 4, 2025
Certification dateFebruary 4, 2025

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 1982 (44 years in practice)
Group practice Yampa Valley Medical Center — 126 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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