Doctor profile · Federal record

Dr. Diana Koelliker, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Telluride, CO

  • NPI 1871567883
  • Accepts Medicare
  • 29 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
500 W Pacific Ave
Telluride, CO 814351229
(970) 728-3848
fax (970) 728-3404

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
September 2, 2015
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Colorado #DR.0042229
Medicaid
CO #59673222

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1871567883. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
331
Distinct HCPCS
10
Medicare allowed
$11,346
HCPCS Description Services Patients Avg allowed
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 39 39 $8
36415 Insertion of needle into vein for collection of blood sample 32 31 $8
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 30 27 $14
96375 Injection of additional new drug or substance into vein 29 13 $16
84484 Troponin (protein) analysis, quantitative 26 25 $12
99203 New patient office or other outpatient visit, 30-44 minutes 25 25 $113
80048 Blood test, basic group of blood chemicals (calcium, total) 24 24 $8
J7040 Infusion, normal saline solution, sterile (500 ml = 1 unit) 23 12 $1
99213 Established patient office or other outpatient visit, 20-29 minutes 19 18 $91
80053 Blood test, comprehensive group of blood chemicals 17 17 $10

In context: peer comparison

Among 1 peers in this city , average services per provider: 22. This provider delivers 15× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Diana Koelliker's medical specialty?
Dr. Diana Koelliker practices Emergency Medicine Physician in Telluride, CO.
Where does Dr. Diana Koelliker practice?
Dr. Diana Koelliker practices at 500 W Pacific Ave, Telluride, CO 814351229. Office phone: 9707283848.
What is Dr. Diana Koelliker's NPI?
Dr. Diana Koelliker's National Provider Identifier (NPI) is 1871567883, issued by NPPES.
Does Dr. Diana Koelliker accept Medicare assignment?
Yes. Dr. Diana Koelliker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Koelliker commonly perform?
Top Medicare-reported procedures in 2023: Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000). Source: CMS Medicare Physician & Other Practitioners file.