Michael Mortensen, DO
NPI 1679709273 · Endocrinology, Diabetes & Metabolism Physician · Flagstaff, AZ
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Mortensen, DO is a Endocrinology, Diabetes & Metabolism Physician provider in Flagstaff, AZ (NPI 1679709273).
Provider details
- NPI number
- 1679709273
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 005862 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,036 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 390 | $124 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 356 | $16 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 98 | $33 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 98 | $160 |
| Fine Needle Aspiration Biopsy Using Ultrasound Guidance, First Growth10005 | 29 | $126 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 366 | 107 |
| Semaglutidebrand: Ozempic | 157 | 31 |
| Pioglitazone Hcl | 126 | 41 |
| Insulin Glargine,hum.rec.anlogbrand: Toujeo Max Solostar | 84 | 14 |
| Metformin Hcl | 73 | 27 |
| Tirzepatidebrand: Mounjaro | 70 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$124 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-09
- Last updated
- 2021-08-02
- Certified
- 2021-08-02
Frequently asked questions
- What is Michael Mortensen's NPI number?
- Michael Mortensen's National Provider Identifier (NPI) is 1679709273, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Mortensen's specialty?
- Michael Mortensen is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Mortensen located?
- Michael Mortensen's practice location on file with NPPES is 1200 N Beaver St, Flagstaff, AZ 86001-3118.
- What is Michael Mortensen's phone number?
- The practice phone number listed in the NPPES registry for Michael Mortensen is (928) 214-2920.
- Does Michael Mortensen accept Medicare?
- Michael Mortensen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Mortensen's NPI active?
- Yes — Michael Mortensen's NPI (1679709273) is active in the NPPES registry as of the last update on 2021-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.