Doctor profile · Federal record

Dr. Alan Feiner, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Denver, CO

  • NPI 1922082643
  • Accepts Medicare
  • MIPS 81.5 / 100 · 2023
  • 53 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4700 Hale Pkwy Ste 400
Denver, CO 802204051
(303) 321-0302
fax (303) 321-9296
Mailing address
7951 E Maplewood Ave Ste 350
Greenwood Village, CO 801114758

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
February 4, 2025
Year of graduation
1973 — 53 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Colorado #DR.0019819
Medicaid
CO #1199191

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1922082643. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
10,432
Distinct HCPCS
10
Medicare allowed
$227,293
HCPCS Description Services Patients Avg allowed
88185 Flow cytometry technique for dna or cell analysis, each additional marker 1,173 47 $25
J9395 Injection, fulvestrant, 25 mg 1,160 11 $11
J1100 Injection, dexamethasone sodium phosphate, 1 mg 1,075 23 $0
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 832 226 $8
J2469 Injection, palonosetron hcl, 25 mcg 790 15 $1
36415 Insertion of needle into vein for collection of blood sample 735 230 $8
82784 Gammaglobulin (immune system protein) measurement 650 121 $9
80053 Blood test, comprehensive group of blood chemicals 524 221 $10
J1626 Injection, granisetron hydrochloride, 100 mcg 500 20 $0
99214 Established patient office or other outpatient visit, 30-39 minutes 418 185 $129

In context: peer comparison

Among 15 peers in Denver Hematology & Oncology Physician, average services per provider: 845. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$105
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Janssen Biotech, INC. 1 $84.99
Abbvie INC. 1 $20.15

By nature of payment

Education
$85
Food and Beverage
$20

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
528
Patients
112
Total drug cost
$2,404,879
Drug Type Claims Patients Total cost
Acyclovir Generic 96 17 $1,555
Hydroxyurea Generic 80 26 $5,366
Eliquis (Apixaban) Brand 50 12 $41,238
Lenalidomide Generic 44 0 $615,580
Jakafi (Ruxolitinib Phosphate) Brand 34 0 $560,189
Dexamethasone Generic 31 14 $773
Xarelto (Rivaroxaban) Brand 30 11 $39,538
Imbruvica (Ibrutinib) Brand 27 0 $434,881
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 27 0 $262
Azithromycin Generic 24 17 $109

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alan Feiner's medical specialty?
Dr. Alan Feiner practices Hematology & Oncology Physician in Denver, CO.
Where does Dr. Alan Feiner practice?
Dr. Alan Feiner practices at 4700 Hale Pkwy Ste 400, Denver, CO 802204051. Office phone: 3033210302.
What is Dr. Alan Feiner's NPI?
Dr. Alan Feiner's National Provider Identifier (NPI) is 1922082643, issued by NPPES.
Does Dr. Alan Feiner accept Medicare assignment?
Yes. Dr. Alan Feiner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alan Feiner commonly perform?
Top Medicare-reported procedures in 2023: Flow cytometry technique for dna or cell analysis, each additional marker (HCPCS 88185); Injection, fulvestrant, 25 mg (HCPCS J9395); Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100). Source: CMS Medicare Physician & Other Practitioners file.