Doctor profile · Federal record

Dr. Mark Unger, MD

Family Medicine Physician · Fort Collins, CO

  • NPI 1568448744
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1113 Oakridge Dr
Fort Collins, CO 805255591
(970) 225-0040
fax (970) 225-2996
Mailing address
1300 Riverside Ave Ste 102
Fort Collins, CO 805244351

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
September 10, 2021
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Colorado #33846

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568448744. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,256
Distinct HCPCS
10
Medicare allowed
$97,062
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 238 157 $91
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 192 192 $130
99214 Established patient office or other outpatient visit, 30-39 minutes 191 122 $128
93793 Anticoagulant management of patient taking warfarin 126 28 $12
83036 Hemoglobin a1c level 82 44 $10
G0008 Administration of influenza virus vaccine 65 65 $31
90662 Influenza vaccine split virus, preservative free 62 62 $71
85610 Blood test, clotting time 59 17 $4
96372 Injection of drug or substance under skin or into muscle 51 12 $14
99212 Established patient office or other outpatient visit, 10-19 minutes 47 41 $57

In context: peer comparison

Among 39 peers in this city , average services per provider: 68. This provider delivers 18× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,433
Patients
885
Total drug cost
$46,975
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 474 125 $5,793
Lisinopril Generic 380 108 $3,288
Levothyroxine Sodium Generic 343 86 $5,784
Amlodipine Besylate Generic 300 82 $2,083
Gabapentin Generic 228 47 $6,861
Losartan Potassium Generic 209 64 $3,346
Tamsulosin Hcl Generic 207 51 $3,872
Omeprazole Generic 206 50 $3,370
Metformin Hcl Generic 199 60 $2,408
Simvastatin Generic 170 50 $1,917

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Unger's medical specialty?
Dr. Mark Unger practices Family Medicine Physician in Fort Collins, CO.
Where does Dr. Mark Unger practice?
Dr. Mark Unger practices at 1113 Oakridge Dr, Fort Collins, CO 805255591. Office phone: 9702250040.
What is Dr. Mark Unger's NPI?
Dr. Mark Unger's National Provider Identifier (NPI) is 1568448744, issued by NPPES.
What procedures does Dr. Mark Unger commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.