John Moritz Wiemann, MD
Orthopaedic Surgery Physician · Hollister, CA
John Moritz Wiemann, MD is an orthopaedic surgery physician with a practice address in Hollister, California, and NPI 1730228768, issued on Feb 6, 2007. Check the license (California A140151, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Moritz Wiemann
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A140151 CA
Self-reported in NPPES; status is on the state search - Practice location
- 930 Sunnyslope RD Ste C4, Hollister, CA 95023
- Phone
- (831) 636-7950
- Enumerated
- Feb 6, 2007
- Record last updated
- Apr 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20160113002653); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Verify John Moritz Wiemann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A140151Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Hazel Hawkins Memorial HospitalHollister, CA · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
John Moritz Wiemann among 2,276 orthopaedic surgery physician records in California
John Moritz Wiemann, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 35% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2006 · median 2003 among the 1,347 with a school on file
- Record last updated2026 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Hollister → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Barry Tuch, M.D.Gilroy, CA 950201881640787
- Edward Bradbury, M.D.Freedom, CA 950191417937228
- Leroy Rasi, M.D.Freedom, CA 950191164524997
- Mark Golod, M.D.Los Gatos, CA 950301972509800
- Norman Nedde, M.D.Los Gatos, CA 950301487713475
- Ian Barrett, MDLos Gatos, CA 950321265794754
- Michael Butcher, M.D.Los Gatos, CA 950321386631133
- Frederic Collins, MDLos Gatos, CA 950321598808834
Common questions
What is John Moritz Wiemann, MD's NPI number?
John Moritz Wiemann, MD's National Provider Identifier (NPI) is 1730228768, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Moritz Wiemann, MD located?
The NPPES record lists a practice address at 930 Sunnyslope RD Ste C4, Hollister, CA, 95023. Phone: (831) 636-7950. Providers update this record themselves, so call before visiting.
How can I verify John Moritz Wiemann, MD's license?
NPPES lists California license number A140151, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.