Dr. Gregg A. Koldenhoven, MD
- Medicare services, 2024
- 5,154
- Medicare patients, 2024
- 345
- Part D claims, 2024
- 298
- MIPS score, 2024
- 86
- Hospital affiliations
- 3
- Practice address
- 2500 E Prospect Rd, Fort Collins, CO 80525
- Practice phone
- Call (970) 493-0112
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Orthopaedic and Spine Center of the Rockies
Fort Collins, Colorado
Find Dr. Koldenhoven's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gregg A. Koldenhoven is an orthopedic surgeon in Fort Collins, Colorado
Dr. Koldenhoven practices at Orthopaedic and Spine Center of the Rockies in Fort Collins, Colorado.
Dr. Koldenhoven's NPI, 1396740411, was assigned on June 15, 2005. Dr. Koldenhoven graduated from University of Iowa, RJ & L Carver College of Medicine in 1993. Dr. Koldenhoven holds Colorado license DR0039636.
- NPI
- 1396740411NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991712374
- NPI enumeration date
- June 15, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (970) 493-0112
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregg A. Koldenhoven practices at Orthopaedic and Spine Center of the Rockies in Fort Collins, Colorado
Dr. Koldenhoven's primary practice is Orthopaedic and Spine Center of the Rockies, at 2500 E Prospect Rd, Fort Collins, CO 80525 in Larimer County. The practice phone is (970) 493-0112.
- Orthopaedic and Spine Center of the Rockies2500 E Prospect Rd, Fort Collins, CO 80525 · Larimer CountyPhone(970) 493-0112
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregg A. Koldenhoven is affiliated with 9 sites of care and 4 medical groups
Dr. Koldenhoven's primary practice is Orthopaedic and Spine Center of the Rockies in Fort Collins, Colorado. Dr. Koldenhoven is also affiliated with UCHealth Longs Peak Hospital. The medical group on file is Select Physical Therapy. Dmand AI also links Dr. Koldenhoven to 2 more hospitals, 3 group practices and clinics, 3 medical groups, 1 home health agency and 1 ambulatory surgery center, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregg A. Koldenhoven's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koldenhoven practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orthopaedic and Spine Center of the Rockies | Available with a free account |
| +8 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregg A. Koldenhoven is one of 387 orthopedic surgeons in Colorado
Orthopaedic surgery is Dr. Koldenhoven's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Koldenhoven is licensed in Colorado.
Specialties and state licenses
- Orthopaedic surgery, ColoradoPrimary
Orthopedic surgeons near Dr. Koldenhoven
Counts of orthopedic surgeons 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. Gregg A. Koldenhoven billed Medicare for 5,154 services in 2024
CMS data shows 5,154 Medicare services from Dr. Koldenhoven across 19 procedure codes in 2024, for 345 Medicare patients. Medicare paid $87,380 for them. Every service was in an office.
Dr. Koldenhoven's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 282024: 3,70013114%
- Office and hospital visits
- 2023: 6032024: 73923%
- Imaging
- 2023: 4212024: 60544%
- Surgery
- 2023: 212024: 77267%
- Other services
- 2023: 02024: 33
Dr. Koldenhoven compared with the Colorado median for orthopedic surgeons, 2024
- Dr. Koldenhoven
- Colorado median
- Medicare services
- 5,154vs 7007.4 times
- Medicare patients
- 345vs 19676% above
- Part D claims
- 241vs 643.8 times
Medians across 373 orthopedic surgeons in Colorado with Dmand AI profiles that report each measure.
Dr. Koldenhoven'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. Koldenhoven and other orthopedic surgeons in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregg A. Koldenhoven treated 345 Medicare patients in 2024, average age 73
CMS counts 345 Medicare patients who saw Dr. Koldenhoven in 2024. The largest group is 65 to 74, with 201 patients. 65% of them have high cholesterol, and 63% have arthritis. 7% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Koldenhoven's median patient age at 65, with 60% women.
Dr. Koldenhoven's Medicare patients by age, 2024
Dr. Koldenhoven's Medicare patients by sex, 2024
- Women19958%
- Men14642%
Chronic conditions among Dr. Koldenhoven's Medicare patients, 2024
- High cholesterol65%
- Arthritis63%
- High blood pressure60%
- Ischemic heart disease27%
- Mood disorders25%
- Anxiety24%
- Depression23%
- Diabetes19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Koldenhoven's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women60%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregg A. Koldenhoven wrote 298 Medicare Part D claims in 2024
In 2024, Dr. Koldenhoven wrote 298 Medicare Part D claims for 193 patients. 96% of them were for generic drugs. CMS names the drug for 241 of them, across 8 drugs with 11 or more claims each, at $1,110 in total drug cost. In 2023, CMS named 213 claims across 9 drugs.
Dr. Koldenhoven's Part D claims by kind of drug, 2024
- Generic287 claims96%
- Brand-name11 claims4%
Dr. Koldenhoven's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Koldenhoven's Part D claims, 2024
- Opioids32%95 of 298 claims
- Antibiotics7%22 of 298 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2132024: 24113%
Drugs named by CMS: 8 in 2024, 9 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Gregg A. Koldenhoven scored 86 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Koldenhoven for performance year 2024, reported as part of a group. Dr. Koldenhoven accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Koldenhoven's MIPS scores, performance year 2024
- 86of 100Final score
- 74.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gregg A. Koldenhoven received $5,535 in industry payments from 2016 to 2025
CMS Open Payments shows 112 general payments to Dr. Koldenhoven from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 74% of the total. Arthrex, Inc. paid the most, $1,270.
General payments to Dr. Koldenhoven by program year, 2016 to 2025
General payments to Dr. Koldenhoven by kind, 2016 to 2025
- Food and beverage$4,08974%
- Education$1,25723%
- Travel and lodging$1893%
Companies that paid Dr. Koldenhoven the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregg A. Koldenhoven graduated from University of Iowa, RJ & L Carver College of Medicine
Dr. Koldenhoven graduated from University of Iowa, RJ & L Carver College of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregg A. Koldenhoven'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Gregg A. Koldenhoven
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. Gregg A. Koldenhoven's NPI number?
Dr. Gregg A. Koldenhoven's NPI number is 1396740411. It was assigned on June 15, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregg A. Koldenhoven?
Dr. Gregg A. Koldenhoven is an orthopedic surgeon in Fort Collins, Colorado. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Gregg A. Koldenhoven practice?
Dr. Koldenhoven practices at 2500 E Prospect Rd, Fort Collins, CO 80525. Dr. Koldenhoven's primary practice is Orthopaedic and Spine Center of the Rockies in Fort Collins, Colorado. Dmand AI also links Dr. Koldenhoven to 2 hospitals, 3 group practices and clinics, 3 medical groups, 1 home health agency and 1 ambulatory surgery center.
What is Dr. Gregg A. Koldenhoven's office phone number?
The practice phone on file for Dr. Koldenhoven is (970) 493-0112.
What is Dr. Gregg A. Koldenhoven's medical license number?
Dr. Koldenhoven holds Colorado license DR0039636.
Which hospitals is Dr. Gregg A. Koldenhoven affiliated with?
Dr. Koldenhoven is affiliated with UCHealth Longs Peak Hospital. Dmand AI links Dr. Koldenhoven to 2 more hospitals.
What medical group is Dr. Gregg A. Koldenhoven part of?
Dr. Koldenhoven is linked to Select Physical Therapy. Dmand AI links Dr. Koldenhoven to 3 more medical groups.
Does Dr. Gregg A. Koldenhoven accept Medicare?
Yes. CMS data shows Dr. Koldenhoven billed Medicare for 5,154 services in 2024, and Dr. Koldenhoven accepts Medicare assignment.
What is Dr. Gregg A. Koldenhoven's MIPS score?
Dr. Koldenhoven's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.
How many Medicare patients does Dr. Gregg A. Koldenhoven see?
CMS counts 345 Medicare patients who saw Dr. Koldenhoven in 2024, with an average age of 73.
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What services does Dr. Gregg A. Koldenhoven bill to Medicare?
In 2024, Dr. Koldenhoven's most billed Medicare services were injected or infused drug (J1010), injected or infused drug (J7325) and office visit, established patient (99213).
Where did Dr. Gregg A. Koldenhoven go to medical school?
Dr. Koldenhoven graduated from University of Iowa, RJ & L Carver College of Medicine in 1993.
What drugs does Dr. Gregg A. Koldenhoven prescribe most?
In 2024 Medicare Part D data, Dr. Koldenhoven's most prescribed drugs by claims were Meloxicam, Oxycodone-Acetaminophen and Prednisone.
Has Dr. Gregg A. Koldenhoven received payments from drug or device companies?
CMS Open Payments shows $5,535 in general payments to Dr. Koldenhoven from 18 companies from 2016 to 2025. The largest total came from Arthrex, Inc.
How long has Dr. Gregg A. Koldenhoven been practicing?
Dr. Koldenhoven graduated from medical school in 1993, 33 years ago.
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