Benjamin Johnson, M.D.
NPI 1396993291 · Internal Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Johnson, M.D. is a Internal Medicine Physician provider in San Diego, CA (NPI 1396993291).
Provider details
- NPI number
- 1396993291
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A111648 (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
17 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
2,387 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 844 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 741 | $137 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 221 | $139 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 150 | $191 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 131 | $97 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 101 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 472 | 148 |
| Rosuvastatin Calcium | 316 | 98 |
| Levothyroxine Sodium | 307 | 85 |
| Losartan Potassium | 293 | 88 |
| Amlodipine Besylate | 277 | 83 |
| Tamsulosin Hcl | 157 | 54 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-09-04
- Last updated
- 2018-10-22
Frequently asked questions
- What is Benjamin Johnson's NPI number?
- Benjamin Johnson's National Provider Identifier (NPI) is 1396993291, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Johnson's specialty?
- Benjamin Johnson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Johnson located?
- Benjamin Johnson's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9001.
- What is Benjamin Johnson's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Johnson is (619) 543-8254.
- Does Benjamin Johnson accept Medicare?
- Benjamin Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Johnson's NPI active?
- Yes — Benjamin Johnson's NPI (1396993291) is active in the NPPES registry as of the last update on 2018-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.