Doctor profile · Federal record

Dr. Catherine Marmillo, MD, MS

Family Medicine Physician (CMS: Hospitalist) · Steamboat Springs, CO

  • NPI 1518351147
  • Accepts Medicare
  • 11 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
940 Central Park Dr Ste 100
Steamboat Springs, CO 804878853
(970) 879-3327

Credentials & registration

NPPES · NUCC
NPI registered
March 2015 — 11 yrs on file
Profile last updated
September 24, 2023
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Colorado #DR.0067273

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518351147. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
261
Distinct HCPCS
10
Medicare allowed
$18,580
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 63 54 $84
99213 Established patient office or other outpatient visit, 20-29 minutes 45 38 $71
90662 Influenza vaccine split virus, preservative free 27 27 $69
G0008 Administration of influenza virus vaccine 26 26 $31
99215 Established patient office or other outpatient visit, 40-54 minutes 20 19 $118
90480 Admn sarscov2 vacc 1 dose 18 18 $41
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 14 14 $50
81003 Automated urinalysis test 13 11 $2
91322 Sarscov2 vac 50 mcg/0.5ml im 13 13 $137
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 11 11 $14

In context: peer comparison

Among 5 peers in Steamboat Springs Family Medicine Physician, average services per provider: 49. This provider delivers 5.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
244
Patients
100
Total drug cost
$9,643
Drug Type Claims Patients Total cost
Lisinopril Generic 33 22 $344
Levothyroxine Sodium Generic 31 25 $383
Atorvastatin Calcium Generic 28 21 $420
Gabapentin Generic 23 16 $434
Rosuvastatin Calcium Generic 23 16 $774
Meloxicam Generic 17 0 $79
Bevespi Aerosphere (Glycopyrrolate/Formoterol Fum) Brand 14 0 $6,282
Losartan Potassium Generic 14 0 $188
Omeprazole Generic 13 0 $179
Simvastatin Generic 13 0 $124

Frequently asked questions

Auto-generated from federal data
What is Dr. Catherine Marmillo's medical specialty?
Dr. Catherine Marmillo practices Family Medicine Physician in Steamboat Springs, CO.
Where does Dr. Catherine Marmillo practice?
Dr. Catherine Marmillo practices at 940 Central Park Dr Ste 100, Steamboat Springs, CO 804878853. Office phone: 9708793327.
What is Dr. Catherine Marmillo's NPI?
Dr. Catherine Marmillo's National Provider Identifier (NPI) is 1518351147, issued by NPPES.
Does Dr. Catherine Marmillo accept Medicare assignment?
Yes. Dr. Catherine Marmillo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Marmillo 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); Influenza vaccine split virus, preservative free (HCPCS 90662). Source: CMS Medicare Physician & Other Practitioners file.