Doctor profile · Federal record

Dr. Colleen Masters, M.S.N.

Acute Care Nurse Practitioner (CMS: Nurse Practitioner) · Registered Nurse · Chicago, IL

  • NPI 1619306362
  • Accepts Medicare
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
500 S Paulina St, Ground Floor
Chicago, IL 60612
(312) 563-4514
fax (312) 563-2857

Credentials & registration

NPPES · NUCC
NPI registered
November 2013 — 13 yrs on file
Profile last updated
June 20, 2018
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363LA2100X — NUCC code
State licenses (2)
Illinois #209.010761 · Illinois #041369961

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619306362. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
286
Distinct HCPCS
2
Medicare allowed
$23,951
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 249 154 $87
99213 Established patient office or other outpatient visit, 20-29 minutes 37 31 $60

In context: peer comparison

Among 45 peers in Chicago Acute Care Nurse Practitioner, average services per provider: 62. This provider delivers 4.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
13
Patients
0
Total drug cost
$221
Drug Type Claims Patients Total cost
Dexamethasone Generic 13 0 $221

Frequently asked questions

Auto-generated from federal data
What is Dr. Colleen Masters's medical specialty?
Dr. Colleen Masters practices Acute Care Nurse Practitioner in Chicago, IL.
Where does Dr. Colleen Masters practice?
Dr. Colleen Masters practices at 500 S Paulina St, Chicago, IL 60612. Office phone: 3125634514.
What is Dr. Colleen Masters's NPI?
Dr. Colleen Masters's National Provider Identifier (NPI) is 1619306362, issued by NPPES.
Does Dr. Colleen Masters accept Medicare assignment?
Yes. Dr. Colleen Masters accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Colleen Masters commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.