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DR. THOMAS G. WILLETT
NPI 1740229483
Psychiatry & Neurology - Psychiatry in Hawthorne, CA

Active since June 06, 2006PECOS EnrolledAccepts Medicare Assignment
4477 W 118TH ST, 400, HAWTHORNE, CA 90250(310) 978-1214 Get Directions Write a Review

NPPES record last updated: January 17, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Thomas G. Willett NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THOMAS G. WILLETT (NPI 1740229483) is an individual psychiatry provider in Hawthorne, California, licensed in California (A22826) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1967).

NPPES Registry Identity

NPI1740229483
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. THOMAS G. WILLETT
Location Address4477 W 118TH ST, 400Hawthorne, CA 90250-2255
Mailing Address3521 Lomita Blvd Ste 103Torrance, CA 90505-5041 · (310) 534-9131 · Fax (310) 534-9132
Phone(310) 978-1214
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1967
Enumeration DateJune 6, 2006
Last NPPES UpdateJanuary 17, 2008
✔ NPI 1740229483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A22826
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
4477 W 118TH ST, Hawthorne, CA 90250
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Other Identifiers 3

OtherA22826CA · Medical Board Of Ca
Medicare UPINE98184CA
Medicaid00A228260CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas G. Willett is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2264514777
PECOS Enrollment IDI20080123000385
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
688 services91 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
456 services84 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
211 services69 patients
Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
85 services48 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90250 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ASHOK KUMAR, M.D., A MEDICAL CORPORATION
Internal Medicine
4477 W 118TH ST, SUITE 200
HAWTHORNE, CA 90250
Los Angeles County (310) 675-4440
DR. ARTIS WOODWARD MD
Family Medicine (Sports Medicine)
4477 W 118TH ST, STE 300
HAWTHORNE, CA 90250
Los Angeles County (310) 531-8010
DR. NADER RAMZI DDS
Dentist (General Practice)
4477 W 118TH ST, 500
HAWTHORNE, CA 90250
Los Angeles County (310) 970-9255
FAYEGH VAKILI INC
Specialist
4477 W 118TH ST, SUITE 503
HAWTHORNE, CA 90250
Los Angeles County (310) 644-9500
MS. NONA PACATANG SANTOS N.P.-C
Nurse Practitioner
4477 W 118TH ST, SUITE 200
HAWTHORNE, CA 90250
Los Angeles County (310) 675-4440
DR. FAYEGH VAKILI M.D.
Orthopaedic Surgery
4477 W 118TH ST, SUITE 503
HAWTHORNE, CA 90250
Los Angeles County (310) 644-3500
MARIAN ISKANDER MD
Pediatrics
4477 W 118TH ST, 301
HAWTHORNE, CA 90250
Los Angeles County (310) 978-8026
POOJA KUMAR M.D.
Internal Medicine
4477 W 118TH ST, SUITE 200
HAWTHORNE, CA 90250
Los Angeles County (310) 675-4440

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Willett's NPI number?

The NPI number for Thomas Willett is 1740229483. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Thomas Willett located?

Thomas Willett practices at 4477 W 118th St 400, Hawthorne, CA 90250. The listed phone number is (310) 978-1214.

What is Thomas Willett's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Thomas Willett enrolled in Medicare?

Yes. Thomas Willett is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Thomas Willett was last updated on January 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.