Brett L. Mathieson, MD
Anesthesiology Physician · Marysville, CA
Brett L. Mathieson, MD is an anesthesiology physician with a practice address in Marysville, California, and NPI 1538112339, issued on May 19, 2006. Check the license (California G76823, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brett L. Mathieson
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- G76823 CA
Self-reported in NPPES; status is on the state search - Practice location
- 726 4TH St, Marysville, CA 95901
- Phone
- (530) 749-4300
- Enumerated
- May 19, 2006
- Record last updated
- Dec 29, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 00G768230 CA
- Medicare enrollment
- Enrolled (PECOS I20090129000448); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 726 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Babeshoff, CRNACertified Registered Nurse Anesthetist1023011574
- Amanda Badgett, RNCertified Registered Nurse Anesthetist1558826461
- Sukhraj Balhan, MDCritical Care Medicine (Internal Medicine) Physician1194169292
- Hamad Bath, DPTPhysical Therapist1437906633
- Robert Boardman, C.R.N.A.Certified Registered Nurse Anesthetist1417983321
- Harmony Boeh, RD, CNSCRegistered Dietitian1083812119
Verify Brett L. Mathieson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G76823Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sutter Valley Medical FoundationSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brett L. Mathieson among 7,571 anesthesiology physician records in California
Brett L. Mathieson, MD 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1991 · median 2006 among the 4,868 with a school on file
- Record last updated2016 · 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).
15 anesthesiology physician records list a practice address in Marysville
They are 15 of the 708 NPPES records with a practice address in Marysville, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Marysville → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- James Calabrese, MDMarysville, CA 959011336192137
- Steve Chow, MDMarysville, CA 959011427001221
- Harmanjeet Dhaliwal, M.D.Marysville, CA 959011235178658
- Harjinder Dhaliwal, M.D.Marysville, CA 959011609819895
- Kelley Kalin, D.O.Marysville, CA 959011972777225
- Alam Khan, MDMarysville, CA 959011568403194
- Radhika Levaka, MDMarysville, CA 959011881821080
- Dhraminder Mohan, MDMarysville, CA 959011568452464
Common questions
What is Brett L. Mathieson, MD's NPI number?
Brett L. Mathieson, MD's National Provider Identifier (NPI) is 1538112339, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brett L. Mathieson, MD located?
The NPPES record lists a practice address at 726 4TH St, Marysville, CA, 95901. Phone: (530) 749-4300. Providers update this record themselves, so call before visiting.
How can I verify Brett L. Mathieson, MD's license?
NPPES lists California license number G76823, 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.