Nathan R. Weber, M.D.
Anesthesiology Physician · Ventura, CA
Nathan R. Weber, M.D. is an anesthesiology physician with a practice address in Ventura, California, and NPI 1629124623, issued on Jan 25, 2007. Check the license (California A91196, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan R. Weber
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A91196 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3291 Loma Vista RD, Ventura, CA 93003
- Phone
- (805) 642-8565
- Enumerated
- Jan 25, 2007
- Record last updated
- Jul 29, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (805) 642-8564
- Medicaid ID
- 00A911960 CA
- Medicare enrollment
- Enrolled (PECOS I20071010000705); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 3291 Loma Vista RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathan R. Weber in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A91196Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 73.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $146.77
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Ventura County Anesthesia Medical Group, Inc.Ventura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan R. Weber among 7,571 anesthesiology physician records in California
Nathan R. Weber, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 47% of them.
- NPI issued2007 · 47% of these records are older, 43% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2001 · median 2006 among the 4,868 with a school on file
- Record last updated2008 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Ventura → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- William Beuttler, M.D.Ventura, CA 930031164441168
- Gary Coppa, M.D.Ventura, CA 930031669491676
- Thomas Cummings, M.D.Ventura, CA 930031417976432
- Mark Desanti, M.D.Ventura, CA 930031639198666
- Kee Lee, M.D.Ventura, CA 930031508886771
- Nelly Mac, M.D.Ventura, CA 930031073546750
- James Pena, M.D.Ventura, CA 930031184645897
- Rajender Reddy, M.D.Ventura, CA 930031528172848
Common questions
What is Nathan R. Weber, M.D.'s NPI number?
Nathan R. Weber, M.D.'s National Provider Identifier (NPI) is 1629124623, issued on Jan 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nathan R. Weber, M.D. located?
The NPPES record lists a practice address at 3291 Loma Vista RD, Ventura, CA, 93003. Phone: (805) 642-8565. Providers update this record themselves, so call before visiting.
How can I verify Nathan R. Weber, M.D.'s license?
NPPES lists California license number A91196, 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.
What is Nathan R. Weber, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.