James Mosson, M.D.
NPI 1437135670 · Internal Medicine Physician · Sonora, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Mosson, M.D. is a Internal Medicine Physician provider in Sonora, CA (NPI 1437135670).
Provider details
- NPI number
- 1437135670
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- G25381 (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
20 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
79 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, 2 Views71046 | 26 | $25 |
| Hemoglobin A1c Level83036 | 24 | $10 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 15 | $15 |
| Detection Test By Immunoassay With Direct Visual Observation for Respiratory Syncytial Virus87807 | 14 | $12 |
Typical Medicare-allowed amounts for these services range $10–$25 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 94 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 231 | 67 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 224 | 38 |
| Amlodipine Besylate | 204 | 59 |
| Losartan Potassium | 198 | 65 |
| Metoprolol Succinate | 173 | 49 |
| Levothyroxine Sodium | 147 | 40 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Mosson's NPI number?
- James Mosson's National Provider Identifier (NPI) is 1437135670, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mosson's specialty?
- James Mosson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Mosson located?
- James Mosson's practice location on file with NPPES is 900 Greenley Rd, Sonora, CA 95370-5287.
- What is James Mosson's phone number?
- The practice phone number listed in the NPPES registry for James Mosson is (209) 536-3738.
- Does James Mosson accept Medicare?
- James Mosson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Mosson's NPI active?
- Yes — James Mosson's NPI (1437135670) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.