John Wiemann, MD
NPI 1730228768 · Orthopaedic Surgery Physician · Hollister, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Wiemann, MD is a Orthopaedic Surgery Physician provider in Hollister, CA (NPI 1730228768).
Provider details
- NPI number
- 1730228768
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A140151 (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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-06
- Last updated
- 2026-04-30
- Certified
- 2026-04-30
Frequently asked questions
- What is John Wiemann's NPI number?
- John Wiemann's National Provider Identifier (NPI) is 1730228768, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Wiemann's specialty?
- John Wiemann is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Wiemann located?
- John Wiemann's practice location on file with NPPES is 930 Sunnyslope Rd Ste C4, Hollister, CA 95023-5617.
- What is John Wiemann's phone number?
- The practice phone number listed in the NPPES registry for John Wiemann is (831) 636-7950.
- Does John Wiemann accept Medicare?
- John Wiemann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Wiemann's NPI active?
- Yes — John Wiemann's NPI (1730228768) is active in the NPPES registry as of the last update on 2026-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.