Nathan Spengler, MD
NPI 1992919666 · Diagnostic Radiology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Spengler, MD is a Diagnostic Radiology Physician provider in San Diego, CA (NPI 1992919666).
Provider details
- NPI number
- 1992919666
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 48743 (CO)
Specialties & taxonomies
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
19 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
677 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) |
|---|---|---|
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 115 | $29 |
| Screening 3d Breast Mammography77063 | 102 | $29 |
| Screening Mammography77067 | 102 | $37 |
| Diagnostic Mammography of Both Breasts77066 | 88 | $48 |
| Screening 3d Breast Mammography77063 | 78 | $50 |
| Screening Mammography77067 | 78 |
Practice location
Mailing address
Additional practice locations (1)
- 10350 E Dakota AveDenver, CO 80247-1314Phone: (303) 338-4545
Registry dates
- Enumerated
- 2007-05-10
- Last updated
- 2023-07-26
- Certified
- 2023-07-26
Frequently asked questions
- What is Nathan Spengler's NPI number?
- Nathan Spengler's National Provider Identifier (NPI) is 1992919666, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Spengler's specialty?
- Nathan Spengler is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Spengler located?
- Nathan Spengler's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Nathan Spengler's phone number?
- The practice phone number listed in the NPPES registry for Nathan Spengler is (800) 926-8273.
- Does Nathan Spengler accept Medicare?
- Nathan Spengler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Spengler's NPI active?
- Yes — Nathan Spengler's NPI (1992919666) is active in the NPPES registry as of the last update on 2023-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.