James Johnson, M.D.
NPI 1093864423 · Family Medicine Physician · San Clemente, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Johnson, M.D. is a Family Medicine Physician provider in San Clemente, CA (NPI 1093864423).
Provider details
- NPI number
- 1093864423
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G69427 (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
19 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
2,815 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 865 | $131 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 377 | $67 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 375 | $53 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 374 | $54 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 146 | $138 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 287 | 81 |
| Levothyroxine Sodium | 162 | 41 |
| Amlodipine Besylate | 135 | 37 |
| Losartan Potassium | 135 | 44 |
| Atorvastatin Calcium | 109 | 31 |
| Zolpidem Tartrate | 88 | 26 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2015-12-21
Frequently asked questions
- What is James Johnson's NPI number?
- James Johnson's National Provider Identifier (NPI) is 1093864423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Johnson's specialty?
- James Johnson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Johnson located?
- James Johnson's practice location on file with NPPES is 901 Calle Amanecer, San Clemente, CA 92673-6278.
- What is James Johnson's phone number?
- The practice phone number listed in the NPPES registry for James Johnson is (949) 218-1482.
- Does James Johnson accept Medicare?
- James Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Johnson's NPI active?
- Yes — James Johnson's NPI (1093864423) is active in the NPPES registry as of the last update on 2015-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.