Gregg A. Koldenhoven, MD
Orthopaedic Foot and Ankle Surgery Physician · Longmont, CO
Gregg A. Koldenhoven, MD is an orthopaedic foot and ankle surgery physician with a practice address in Longmont, Colorado, and NPI 1396740411, issued on Jun 15, 2005. Check the license (Colorado DR.0039636, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregg A. Koldenhoven
- Credential
- MD
- Primary taxonomy
- Orthopaedic Foot and Ankle Surgery Physician 207XX0004X
- License numbers
- DR.0039636 CO
DR0039636 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1610 Dry Creek Dr, Longmont, CO 80503
- Phone
- (303) 772-1600
- Enumerated
- Jun 15, 2005
- Record last updated
- Feb 5, 2026
- Fax
- (970) 493-0521
- Medicare enrollment
- Enrolled (PECOS I20060309000196); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest orthopaedic foot and ankle surgery physician records → All 32 in Colorado → Look up another NPI →
Also registered at 1610 Dry Creek Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Darin Allen, MDAnesthesiology Physician1780946053
- Sharon AmaralPhysical Therapist1538768809
- Jill Andrews, OTOccupational Therapist1568629848
- Eugene Babenko, DPTPhysical Therapist1770715823
- Christine Berger, PT, DPTPhysical Therapist1871962001
- Gavin Bishop, M.D.Orthopaedic Surgery Physician1225203946
Verify Gregg A. Koldenhoven in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0039636Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% more Medicare Part D claims than the average orthopaedic foot and ankle surgery physician in 2024
298 Medicare Part D claims for 193 beneficiaries, against an average of 225 among the 648 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 95 claims were for opioids.
Most prescribed
- Meloxicam99 claims
- Oxycodone-Acetaminophen37 claims
- Prednisone28 claims
- Oxycodone Hcl19 claims
- Hydrocodone-Acetaminophen18 claims
- Tramadol Hcl15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $420.72
6 payments; by number, the most common kind was food and beverage; the largest payer was Paragon 28, Inc. The 643 providers of this specialty with any payment received $23,314.63 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Orthopaedic And Spine Center OF The Rockies PCLongmont, CO
- Select Physical Therapy Holdings IncLoveland, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregg A. Koldenhoven among 32 orthopaedic foot and ankle surgery physician records in Colorado
Gregg A. Koldenhoven, MD is one of 32 orthopaedic foot and ankle surgery physician records with a practice address in Colorado. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1993 · median 2007 among the 25 with a school on file
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0004X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Foot and Ankle Surgery Physician providers in Colorado
There are 32 orthopaedic foot and ankle surgery physician records in Colorado.
All 32 in Colorado → Every provider in Longmont → Orthopaedic Foot and Ankle Surgery Physician nationwide →
The 8 orthopaedic foot and ankle surgery physician records with the nearest ZIP codes
- Michael Houghton, MDFort Collins, CO 805251013990373
- Wesley Jackson, MDFort Collins, CO 805251194782995
- Andrew Stith, MDFort Collins, CO 805251962765412
- Aditya Yerrapragada, MDBoulder, CO 803011811351810
- Stephen Wallace, MDDenver, CO 802381205222502
- Eric Lindberg, M.D.Denver, CO 802201972604916
- Kevin Nagamani, M.D.Denver, CO 802181174521496
- Marissa Jamieson, MDDenver, CO 802061265878599
Common questions
What is Gregg A. Koldenhoven, MD's NPI number?
Gregg A. Koldenhoven, MD's National Provider Identifier (NPI) is 1396740411, issued on Jun 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregg A. Koldenhoven, MD located?
The NPPES record lists a practice address at 1610 Dry Creek Dr, Longmont, CO, 80503. Phone: (303) 772-1600. Providers update this record themselves, so call before visiting.
How can I verify Gregg A. Koldenhoven, MD's license?
NPPES lists Colorado license number DR.0039636, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregg A. Koldenhoven, MD prescribe under Medicare Part D?
In 2024, Gregg A. Koldenhoven, MD had 298 Medicare Part D claims for 193 beneficiaries; the average among orthopaedic foot and ankle surgery physician prescribers was 225. Part D covers Medicare prescriptions only.
What is Gregg A. Koldenhoven, MD's MIPS final score?
The 2023 MIPS final score is 88.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.