John Welborn, M.D.
NPI 1235179144 · Orthopaedic Surgery Physician · Pinole, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Welborn, M.D. is a Orthopaedic Surgery Physician provider in Pinole, CA (NPI 1235179144).
Provider details
- NPI number
- 1235179144
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A61831 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
860 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 | 296 | $74 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 272 | $204 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 102 | $146 |
| X-Ray of Knee, 1-2 Views73560 | 93 | $43 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 45 | $44 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-08
- Last updated
- 2012-08-29
Frequently asked questions
- What is John Welborn's NPI number?
- John Welborn's National Provider Identifier (NPI) is 1235179144, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Welborn's specialty?
- John Welborn is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Welborn located?
- John Welborn's practice location on file with NPPES is 1700 San Pablo Ave, Pinole, CA 94564-2081.
- What is John Welborn's phone number?
- The practice phone number listed in the NPPES registry for John Welborn is (510) 724-4600.
- Does John Welborn accept Medicare?
- John Welborn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Welborn's NPI active?
- Yes — John Welborn's NPI (1235179144) is active in the NPPES registry as of the last update on 2012-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.