Thomas G. Willett
Psychiatry Physician · Hawthorne, CA
Thomas G. Willett is a psychiatry physician with a practice address in Hawthorne, California, and NPI 1740229483, issued on Jun 6, 2006. Check the license (California A22826, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas G. Willett
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A22826 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4477 W 118TH St, Hawthorne, CA 90250
- Phone
- (310) 978-1214
- Enumerated
- Jun 6, 2006
- Record last updated
- Jan 17, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 00A228260 CA
- Medicare enrollment
- Enrolled (PECOS I20080123000385); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1967
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 4477 W 118TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rajender Dabas, P.A.-CPhysician Assistant1891949681
- Marian Iskander, MDPediatrics Physician1215122569
- Mona Iskander, MDPediatrics Physician1679580880
- Ronald Kaufmann, PACPhysician Assistant1558542449
- Pooja Kumar, M.D.Internal Medicine Physician1225328610
- Lorena Paoletti, L.AC.Acupuncturist1699821249
Verify Thomas G. Willett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A22826Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average psychiatry physician in 2024
3,245 Medicare Part D claims for 231 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims.
Most prescribed
- Alprazolam326 claims
- Clonazepam199 claims
- Lorazepam172 claims
- Quetiapine Fumarate159 claims
- Lurasidone Hcl135 claims
- Mirtazapine121 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: $441.27
23 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 13,693 providers of this specialty with any payment received $4,954.93 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.
Thomas G. Willett among 8,673 psychiatry physician records in California
Thomas G. Willett is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1967 · median 2005 among the 3,295 with a school on file
- Record last updated2008 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Hawthorne → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Eram Baig, MDHawthorne, CA 902501649352121
- Harry DoHawthorne, CA 902501134513609
- James Jung, M.D.Hawthorne, CA 902501144394149
- Anum Iqbal Baig, MDGardena, CA 902491346803046
- Anurag Goel, MDHawthorne, CA 902511033405592
- Judy Man, M.D.Gardena, CA 902491558427641
- Khang Nguyen, M.D.Gardena, CA 902491700959343
- Mahmoud Aborabeh, MDGardena, CA 902481720439672
Common questions
What is Thomas G. Willett's NPI number?
Thomas G. Willett's National Provider Identifier (NPI) is 1740229483, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas G. Willett located?
The NPPES record lists a practice address at 4477 W 118TH St, Hawthorne, CA, 90250. Phone: (310) 978-1214. Providers update this record themselves, so call before visiting.
How can I verify Thomas G. Willett's license?
NPPES lists California license number A22826, 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 Thomas G. Willett prescribe under Medicare Part D?
In 2024, Thomas G. Willett had 3,245 Medicare Part D claims for 231 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.