Doctor profile · Federal record

Dr. Douglas Merkel, MD

Medical Oncology Physician (CMS: Medical Oncology) · Evanston, IL

  • NPI 1235156811
  • Accepts Medicare
  • MIPS 90.4 / 100 · 2023
  • 45 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2650 Ridge Ave, Kellogg Cancer Center
Evanston, IL 60201
(847) 570-2112
fax (847) 570-1041

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
October 6, 2020
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
Illinois #036065572

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235156811. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,798
Distinct HCPCS
8
Medicare allowed
$129,773
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 1,245 558 $70
99214 Established patient office or other outpatient visit, 30-39 minutes 204 64 $103
99212 Established patient office or other outpatient visit, 10-19 minutes 199 182 $38
99213 Established patient office or other outpatient visit, 20-29 minutes 64 64 $70
99204 New patient office or other outpatient visit, 45-59 minutes 38 38 $142
99212 Established patient office or other outpatient visit, 10-19 minutes 21 21 $38
99214 Established patient office or other outpatient visit, 30-39 minutes 14 14 $103
99215 Established patient office or other outpatient visit, 40-54 minutes 13 12 $152

In context: peer comparison

Among 6 peers in Evanston Medical Oncology Physician, average services per provider: 115. This provider delivers 16× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,694
Patients
462
Total drug cost
$1,067,945
Drug Type Claims Patients Total cost
Anastrozole Generic 711 181 $20,092
Letrozole Generic 462 132 $12,861
Tamoxifen Citrate Generic 134 35 $5,447
Ibrance (Palbociclib) Brand 59 0 $1,007,502
Exemestane Generic 57 19 $16,292
Zolpidem Tartrate Generic 34 0 $306
Ondansetron Hcl Generic 33 20 $533
Prochlorperazine Maleate Generic 32 24 $498
Dexamethasone Generic 31 19 $582
Raloxifene Hcl Generic 26 0 $2,536

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Douglas Merkel's medical specialty?
Dr. Douglas Merkel practices Medical Oncology Physician in Evanston, IL.
Where does Dr. Douglas Merkel practice?
Dr. Douglas Merkel practices at 2650 Ridge Ave, Evanston, IL 60201. Office phone: 8475702112.
What is Dr. Douglas Merkel's NPI?
Dr. Douglas Merkel's National Provider Identifier (NPI) is 1235156811, issued by NPPES.
Does Dr. Douglas Merkel accept Medicare assignment?
Yes. Dr. Douglas Merkel accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Douglas Merkel commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.