Robert Johnson, PA-C
NPI 1578588232 · Physician Assistant · Stockton, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Johnson, PA-C is a Physician Assistant provider in Stockton, CA (NPI 1578588232).
Provider details
- NPI number
- 1578588232
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA60674 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
867 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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 226 | $63 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 192 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 95 | $109 |
| Replacement of Knee Joint, Both Sides of Knee27447 | 79 | $171 |
| Computer-Assisted Surgery for Muscle and Bone Procedure20985 | 75 | $19 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 368 | 182 |
| Celecoxib | 290 | 120 |
| Meloxicam | 143 | 64 |
| Duloxetine Hcl | 62 | 59 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 48 | 30 |
| Tramadol Hcl | 29 | 19 |
| Ondansetronbrand: Ondansetron Odt |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2023-05-07
- Certified
- 2023-05-07
Frequently asked questions
- What is Robert Johnson's NPI number?
- Robert Johnson's National Provider Identifier (NPI) is 1578588232, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Johnson's specialty?
- Robert Johnson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Robert Johnson located?
- Robert Johnson's practice location on file with NPPES is 2545 W. Hammer Ln., Stockton, CA 95209-7597.
- What is Robert Johnson's phone number?
- The practice phone number listed in the NPPES registry for Robert Johnson is (209) 948-1641.
- Does Robert Johnson accept Medicare?
- Robert Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Johnson's NPI active?
- Yes — Robert Johnson's NPI (1578588232) is active in the NPPES registry as of the last update on 2023-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.