Doctor profile · Federal record

Dr. Michael Mortensen, DO

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Internal Medicine Physician · Flagstaff, AZ

  • NPI 1679709273
  • Accepts Medicare
  • MIPS 77.0 / 100 · 2023
  • 17 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1200 N Beaver St
Flagstaff, AZ 860013118
(928) 214-2920
fax (928) 214-2925

Credentials & registration

NPPES · NUCC
NPI registered
June 2009 — 17 yrs on file
Profile last updated
August 2, 2021
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State licenses (2)
Arizona #005862 · Arizona #R1693
Medicaid
AZ #716555

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679709273. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
663
Distinct HCPCS
8
Medicare allowed
$75,795
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 343 202 $118
99204 New patient office or other outpatient visit, 45-59 minutes 112 112 $158
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 98 47 $33
10005 Fine needle aspiration biopsy using ultrasound guidance, first growth 33 32 $132
99215 Established patient office or other outpatient visit, 40-54 minutes 23 19 $172
99442 Telephone medical discussion with physician, 11-20 minutes 22 19 $76
99213 Established patient office or other outpatient visit, 20-29 minutes 18 18 $80
99205 New patient office or other outpatient visit, 60-74 minutes 14 14 $213

In context: peer comparison

Among 1 peers in this city , average services per provider: 82. This provider delivers 8.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$124
Transactions
6
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Insulet Corporation 2 $40.79
Abbott Laboratories 2 $33.03
Dexcom, Inc. 1 $30.16
Medtronic, Inc. 1 $19.68

By nature of payment

Food and Beverage
$124

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,058
Patients
306
Total drug cost
$490,892
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 234 77 $5,110
Ozempic (Semaglutide) Brand 126 32 $176,085
Pioglitazone Hcl Generic 113 41 $2,646
Metformin Hcl Generic 63 17 $1,318
Trulicity (Dulaglutide) Brand 59 14 $72,292
Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) Brand 55 20 $44,296
Metformin Hcl Er (Metformin Hcl) Brand 55 19 $1,024
Novolog Flexpen (Insulin Aspart) Brand 51 18 $65,049
Prednisone Generic 48 0 $913
Rybelsus (Semaglutide) Brand 46 11 $65,166

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Mortensen's medical specialty?
Dr. Michael Mortensen practices Endocrinology, Diabetes & Metabolism Physician in Flagstaff, AZ.
Where does Dr. Michael Mortensen practice?
Dr. Michael Mortensen practices at 1200 N Beaver St, Flagstaff, AZ 860013118. Office phone: 9282142920.
What is Dr. Michael Mortensen's NPI?
Dr. Michael Mortensen's National Provider Identifier (NPI) is 1679709273, issued by NPPES.
Does Dr. Michael Mortensen accept Medicare assignment?
Yes. Dr. Michael Mortensen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Mortensen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.