Michael Larson, M.D., PH.D
NPI 1225416860 · Diagnostic Radiology Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Larson, M.D., PH.D is a Diagnostic Radiology Physician provider in Sacramento, CA (NPI 1225416860).
Provider details
- NPI number
- 1225416860
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D
- Sex
- Male
- Sole proprietor
- No
- License
- C173330 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,918 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) |
|---|---|---|
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 319 | $87 |
| X-Ray of Abdomen, 1 View74018 | 318 | $9 |
| X-Ray of Abdomen, 1 View74018 | 93 | $9 |
| Limited Ultrasound Scan of Abdomen76705 | 92 | $28 |
| Complete Ultrasound Scan Behind Abdominal Cavity76770 | 82 | $35 |
| Mri Scan of Pelvis Before and After Contrast72197 | 81 | $106 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-15
- Last updated
- 2021-10-08
- Certified
- 2021-10-08
Frequently asked questions
- What is Michael Larson's NPI number?
- Michael Larson's National Provider Identifier (NPI) is 1225416860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Larson's specialty?
- Michael Larson is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Larson located?
- Michael Larson's practice location on file with NPPES is 4860 Y St Ste 3100, Sacramento, CA 95817-2307.
- What is Michael Larson's phone number?
- The practice phone number listed in the NPPES registry for Michael Larson is (916) 734-6464.
- Does Michael Larson accept Medicare?
- Michael Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Larson's NPI active?
- Yes — Michael Larson's NPI (1225416860) is active in the NPPES registry as of the last update on 2021-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.