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

Dr. Alan S Feiner, MD

Individual provider Hematology & Oncology Physician · NPI 1922082643

Dr. Alan S Feiner, MD is a Hematology/Oncology in Denver, Colorado. Graduated from Denver College of Medicine - Nlg in 1973, 53 years ago. Practices with Rocky Mountain Cancer Centers LLP, a 132-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
53
Trained at
Denver College of Medicine - Nlg
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

4700 Hale Pkwy Ste 400
Denver, CO 80220-4051
Phone: (303) 321-0302
Fax: (303) 321-9296
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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 DR.0019819 (CO)

Record details

NPI number1922082643
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 6, 2005
Last updated in NPPESFebruary 4, 2025
Certification dateFebruary 4, 2025
Mailing address7951 E Maplewood Ave Ste 350, Greenwood Village, CO 80111-4758

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolDENVER COLLEGE OF MEDICINE - NLG
Graduated 1973 (53 years in practice)
Group practice Rocky Mountain Cancer Centers Llp — 132 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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