Mark Unger, MD
Family Medicine Physician · Fort Collins, CO
Mark Unger, MD is a family medicine physician with a practice address in Fort Collins, Colorado, and NPI 1568448744, issued on Dec 19, 2005. Check the license (Colorado 33846, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Unger
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 33846 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1113 Oakridge Dr, Fort Collins, CO 80525
- Phone
- (970) 225-0040
- Enumerated
- Dec 19, 2005
- Record last updated
- Sep 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (970) 225-2996
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 1113 Oakridge Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lara Abrahamson, MDFamily Medicine Physician1538145289
- Olivia Braucht, NPFamily Nurse Practitioner1093543662
- Nancy Butcher, NPFamily Nurse Practitioner1174723415
- Lindsay Conway, FNP-BCFamily Nurse Practitioner1861739757
- Katelyn CurrierAmbulatory Care Pharmacist1578219879
- Jessica Guiroy, MDFamily Medicine Physician1003080565
Verify Mark Unger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 33846Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average family medicine physician in 2024
8,417 Medicare Part D claims for 618 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 400 claims were for opioids.
Most prescribed
- Atorvastatin Calcium521 claims
- Lisinopril380 claims
- Levothyroxine Sodium345 claims
- Amlodipine Besylate293 claims
- Losartan Potassium262 claims
- Gabapentin227 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.
Mark Unger among 3,563 family medicine physician records in Colorado
Mark Unger, MD is one of 3,563 family medicine physician records with a practice address in Colorado. 76% 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, 88% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
158 family medicine physician records list a practice address in Fort Collins
They are 158 of the 6,928 NPPES records with a practice address in Fort Collins, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Fort Collins → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lara Abrahamson, MDFort Collins, CO 805251538145289
- Kurt Dallow, MDFort Collins, CO 805251376528851
- April Gray, M.D.Fort Collins, CO 805251023052628
- Sandra Henderson, M.D.Fort Collins, CO 805251053360834
- Susan Klingner, M.D.Fort Collins, CO 805251912956194
- Keith McLaughlin, M.D.Fort Collins, CO 805251932187036
- Edward Miron, M.D.Fort Collins, CO 805251245200849
- Juan Rodriguez, D.O.Fort Collins, CO 805251811987829
Common questions
What is Mark Unger, MD's NPI number?
Mark Unger, MD's National Provider Identifier (NPI) is 1568448744, issued on Dec 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Unger, MD located?
The NPPES record lists a practice address at 1113 Oakridge Dr, Fort Collins, CO, 80525. Phone: (970) 225-0040. Providers update this record themselves, so call before visiting.
How can I verify Mark Unger, MD's license?
NPPES lists Colorado license number 33846, 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 Mark Unger, MD prescribe under Medicare Part D?
In 2024, Mark Unger, MD had 8,417 Medicare Part D claims for 618 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.