Nathan Mortensen, D.O.
NPI 1679825400 · Diagnostic Radiology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Mortensen, D.O. is a Diagnostic Radiology Physician provider in San Francisco, CA (NPI 1679825400).
Provider details
- NPI number
- 1679825400
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- A87377 (CA)
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 tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
2,884 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 230 | $8 |
| Mri Scan of Brain Before and After Contrast70553 | 229 | $304 |
| X-Ray of Chest, 2 Views71046 | 197 | $10 |
| X-Ray of Knee, 3 Views73562 | 196 | $9 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 179 | $10 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 148 | $170 |
Practice location
Mailing address
Additional practice locations (1)
- 842 E Main StMedford, OR 97504Phone: (541) 618-5825
Registry dates
- Enumerated
- 2012-10-03
- Last updated
- 2025-10-06
- Certified
- 2025-10-06
Frequently asked questions
- What is Nathan Mortensen's NPI number?
- Nathan Mortensen's National Provider Identifier (NPI) is 1679825400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Mortensen's specialty?
- Nathan Mortensen is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Mortensen located?
- Nathan Mortensen's practice location on file with NPPES is 505 Parnassus Ave Fl 3, San Francisco, CA 94143-2204.
- What is Nathan Mortensen's phone number?
- The practice phone number listed in the NPPES registry for Nathan Mortensen is (415) 476-1537.
- Does Nathan Mortensen accept Medicare?
- Nathan Mortensen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Mortensen's NPI active?
- Yes — Nathan Mortensen's NPI (1679825400) is active in the NPPES registry as of the last update on 2025-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.