William N. Thibault, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Orange, CA
William N. Thibault, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Orange, California, and NPI 1417981929, issued on Jul 10, 2006. Check the license (California G19938, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William N. Thibault
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- G19938 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1310 W. Stewart Drive, Orange, CA 92868
- Phone
- (714) 997-2224
- Enumerated
- Jul 10, 2006
- Record last updated
- May 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (714) 997-1187
- Medicaid ID
- 00G199380 CA
- Medicare enrollment
- Enrolled (PECOS I20090317000153); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 1969
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 634 in California → Look up another NPI →
Also registered at 1310 W. Stewart Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carlos Blanche, MDSpecialist1710910286
- Drewry Morris, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1629002118
- Patricia Ronald Riba, MDPediatrics Physician1063562908
Verify William N. Thibault in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G19938Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
89 Medicare Part D claims, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Amlodipine Besylate16 claims
- Losartan Potassium14 claims
- Febuxostat12 claims
- Atorvastatin Calcium11 claims
- Eliquis11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,781.49
22 payments; by number, the most common kind was food and beverage; the largest payer was Atricure, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 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
- Orange County Thoracic And Cardiovascular Surgeons A Med CorpOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William N. Thibault among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California
William N. Thibault, MD is one of 634 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in California. 75% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1969 · median 1997 among the 408 with a school on file
- Record last updated2015 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in California
There are 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California.
All 634 in California → Every provider in Orange → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Amir Abolhoda, MDOrange, CA 928681891875951
- Sevak Darbinian, M.D.Orange, CA 928681306859178
- Puneet Dhawan, M.D.Orange, CA 928681447247853
- Richard Fischel, MDOrange, CA 928681235210436
- Richard Gates, MDOrange, CA 928681568481414
- Dan Gutfinger, MDOrange, CA 928681720004690
- Hari Keshava, MDOrange, CA 928681801195029
- Ali Mahtabifard, MDOrange, CA 928681801872593
Common questions
What is William N. Thibault, MD's NPI number?
William N. Thibault, MD's National Provider Identifier (NPI) is 1417981929, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William N. Thibault, MD located?
The NPPES record lists a practice address at 1310 W. Stewart Drive, Orange, CA, 92868. Phone: (714) 997-2224. Providers update this record themselves, so call before visiting.
How can I verify William N. Thibault, MD's license?
NPPES lists California license number G19938, 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.
How much does William N. Thibault, MD prescribe under Medicare Part D?
In 2024, William N. Thibault, MD had 89 Medicare Part D claims; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.
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.