Dr. Diana E. Koelliker, MD
- Medicare services, 2024
- 283
- Medicare patients, 2024
- 85
- Part D claims, 2024
- 19
- Industry payments
- $16
- Affiliated sites
- 3
- Practice address
- 500 W Pacific Ave, Telluride, CO 81435-5012
- Practice phone
- Call (970) 728-3848
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Telluride Regional Medical Center
Primary care practice · Telluride, Colorado
Find Dr. Koelliker's professional email, personal email and mobile number
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Dr. Diana E. Koelliker is an emergency medicine physician in Telluride, Colorado
Dr. Koelliker practices at Telluride Regional Medical Center in Telluride, Colorado.
Dr. Koelliker's NPI, 1871567883, was assigned on February 15, 2006. Dr. Koelliker graduated from Medical College of Georgia School of Medicine in 1997. Dr. Koelliker holds Colorado license DR.0042229.
- NPI
- 1871567883NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234138165
- NPI enumeration date
- February 15, 2006
- NPI status
- Active
- Practice phone
- (970) 728-3848
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Diana E. Koelliker practices at Telluride Regional Medical Center in Telluride, Colorado
Dr. Koelliker's primary practice is Telluride Regional Medical Center, at 500 W Pacific Ave, Telluride, CO 81435-5012. The practice phone is (970) 728-3848.
- Telluride Regional Medical Center500 W Pacific Ave, Telluride, CO 81435-5012Phone(970) 728-3848
Source: Dmand AI Affiliation Data
Dr. Diana E. Koelliker is affiliated with 3 sites of care and 3 medical groups
Dr. Koelliker's primary practice is Telluride Regional Medical Center in Telluride, Colorado. The medical group on file is Telluride Regional Medical Center. Dmand AI also links Dr. Koelliker to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Diana E. Koelliker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koelliker practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Telluride Regional Medical Center | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diana E. Koelliker is one of 1,226 emergency medicine physicians in Colorado
Emergency medicine is Dr. Koelliker's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Koelliker is licensed in Colorado.
Specialties and state licenses
- Emergency medicine, ColoradoPrimary
Emergency medicine physicians near Dr. Koelliker
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Diana E. Koelliker billed Medicare for 283 services in 2024
CMS data shows 283 Medicare services from Dr. Koelliker across 16 procedure codes in 2024, for 85 Medicare patients. Medicare paid $8,281 for them. Every service was in an office.
Dr. Koelliker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 1392024: 1288%
- Office and hospital visits
- 2023: 672024: 739%
- Tests and treatments
- 2023: 592024: 4327%
- Drugs given in the office
- 2023: 232024: 2613%
- Imaging
- 2023: 112024: 1318%
- Surgery
- 2023: 322024: 0100%
Dr. Koelliker compared with the Colorado median for emergency medicine physicians, 2024
- Dr. Koelliker
- Colorado median
- Medicare services
- 283vs 19942% above
- Medicare patients
- 85vs 19356% below
Medians across 1,237 emergency medicine physicians in Colorado with Dmand AI profiles that report each measure.
Dr. Koelliker's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Koelliker and other emergency medicine physicians in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Diana E. Koelliker treated 85 Medicare patients in 2024, average age 75
CMS counts 85 Medicare patients who saw Dr. Koelliker in 2024. The largest group is 75 to 84, with 41 patients. 73% of them have high cholesterol, and 53% have arthritis. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Koelliker's median patient age at 46, with 49% women.
Dr. Koelliker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Koelliker's Medicare patients by sex, 2024
- Women4351%
- Men4249%
Chronic conditions among Dr. Koelliker's Medicare patients, 2024
- High cholesterol73%
- Arthritis53%
- High blood pressure53%
- Ischemic heart disease28%
- Atrial fibrillation20%
- Cancer20%
- Depression19%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Koelliker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women49%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Diana E. Koelliker wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Koelliker wrote 19 Medicare Part D claims for 14 patients. 95% of them were for generic drugs.
Dr. Koelliker's Part D claims by kind of drug, 2024
- Generic18 claims95%
- Brand-name and other1 claims5%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Diana E. Koelliker received $16 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Koelliker from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Portola Pharmaceuticals, LLC paid the most, $16.
Companies that paid Dr. Koelliker the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Diana E. Koelliker graduated from Medical College of Georgia School of Medicine
Dr. Koelliker graduated from Medical College of Georgia School of Medicine in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Diana E. Koelliker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Diana E. Koelliker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Diana E. Koelliker's NPI number?
Dr. Diana E. Koelliker's NPI number is 1871567883. It was assigned on February 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Diana E. Koelliker?
Dr. Diana E. Koelliker is an emergency medicine physician in Telluride, Colorado. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Diana E. Koelliker practice?
Dr. Koelliker practices at 500 W Pacific Ave, Telluride, CO 81435-5012. Dr. Koelliker's primary practice is Telluride Regional Medical Center in Telluride, Colorado. Dmand AI also links Dr. Koelliker to 2 group practices and clinics and 2 medical groups.
What is Dr. Diana E. Koelliker's office phone number?
The practice phone on file for Dr. Koelliker is (970) 728-3848.
What is Dr. Diana E. Koelliker's medical license number?
Dr. Koelliker holds Colorado license DR.0042229.
What medical group is Dr. Diana E. Koelliker part of?
Dr. Koelliker is linked to Telluride Regional Medical Center. Dmand AI links Dr. Koelliker to 2 more medical groups.
Does Dr. Diana E. Koelliker accept Medicare?
Yes. CMS data shows Dr. Koelliker billed Medicare for 283 services in 2024.
How many Medicare patients does Dr. Diana E. Koelliker see?
CMS counts 85 Medicare patients who saw Dr. Koelliker in 2024, with an average age of 75.
What services does Dr. Diana E. Koelliker bill to Medicare?
In 2024, Dr. Koelliker's most billed Medicare services were lab and pathology test (85025), office visit, new patient (99203) and injected or infused drug (J7040).
Where did Dr. Diana E. Koelliker go to medical school?
Dr. Koelliker graduated from Medical College of Georgia School of Medicine in 1997.
Has Dr. Diana E. Koelliker received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Dr. Koelliker from 1 company from 2020 to 2020. The largest total came from Portola Pharmaceuticals, LLC.
How long has Dr. Diana E. Koelliker been practicing?
Dr. Koelliker graduated from medical school in 1997, 29 years ago.
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