Thomas Willett
NPI 1740229483 · Psychiatry Physician · Hawthorne, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Willett is a Psychiatry Physician provider in Hawthorne, CA (NPI 1740229483).
Provider details
- NPI number
- 1740229483
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A22826 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,454 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 688 | $75 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 456 | $62 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 211 | $26 |
| Psychotherapy, 45 Minutes90834 | 85 | $108 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 14 | $204 |
Typical Medicare-allowed amounts for these services range $26–$204 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 326 | 45 |
| Clonazepam | 199 | 31 |
| Lorazepam | 172 | 29 |
| Quetiapine Fumarate | 159 | 30 |
| Lurasidone Hcl | 135 | 24 |
| Mirtazapine | 121 | 21 |
| Zolpidem Tartrate | 121 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$441 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-06
- Last updated
- 2008-01-17
Frequently asked questions
- What is Thomas Willett's NPI number?
- Thomas Willett's National Provider Identifier (NPI) is 1740229483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Willett's specialty?
- Thomas Willett is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Willett located?
- Thomas Willett's practice location on file with NPPES is 4477 W 118th St, Hawthorne, CA 90250-2255.
- What is Thomas Willett's phone number?
- The practice phone number listed in the NPPES registry for Thomas Willett is (310) 978-1214.
- Does Thomas Willett accept Medicare?
- Thomas Willett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Willett's NPI active?
- Yes — Thomas Willett's NPI (1740229483) is active in the NPPES registry as of the last update on 2008-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.