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DR. DEREK FRANK WILLIAMS M.D.
NPI 1467405753
Family Medicine in Hawthorne, CA

Active since May 18, 2006PECOS EnrolledAccepts Medicare Assignment
11633 HAWTHORNE BLVD, SUITE 410, HAWTHORNE, CA 90250(310) 792-4450(310) 792-4455 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 7, 2023, Jun 1, 2021 (2 updates tracked since 2021).

About Dr. Derek Frank Williams M.d. NPPES

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

DR. DEREK FRANK WILLIAMS M.D. (NPI 1467405753) is an individual family medicine provider in Hawthorne, California, licensed in California (A72933) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Missouri, Kansas City, School Of Medicine (1994).

NPPES Registry Identity

NPI1467405753
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. DEREK FRANK WILLIAMSCredential: M.D.
Location Address11633 HAWTHORNE BLVD, SUITE 410Hawthorne, CA 90250-2321
Mailing Address11633 Hawthorne Blvd, Suite 410Hawthorne, CA 90250-2321 · (310) 792-4450 · Fax (310) 792-4455
Phone(310) 792-4450
Fax(310) 792-4455
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 1994
Enumeration DateMay 18, 2006
Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration
NPPES CertifiedJune 1, 2021
✔ NPI 1467405753 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A72933
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
11633 HAWTHORNE BLVD, Hawthorne, CA 90250
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Other Identifiers 1

Medicaid00G157110CA

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. Derek Frank Williams M.d. 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 ID3971521394
PECOS Enrollment IDI20051103001219
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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
192 services72 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
69 services50 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
35 services35 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
30 services23 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
12 services12 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers17 claims34 services$5.93 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
4 suppliers12 claims14 services$1.07 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

PHILIP CORDOVA PT
Physical Therapist
11633 HAWTHORNE BLVD, SUITE 201
HAWTHORNE, CA 90250
Los Angeles County (310) 263-1632
DR. SHAZIA MAHMOOD HASAN M.D.
Internal Medicine (Cardiovascular Disease)
11633 HAWTHORNE BLVD, SUITE 400
HAWTHORNE, CA 90250
Los Angeles County (310) 675-1400
ALWAYS STAY HOME NURSING SERVICE INC.
Home Health
11633 HAWTHORNE BLVD, SUITE 220
HAWTHORNE, CA 90250
Los Angeles County (310) 219-2857
FARSHID MOOSSAZADEH M.D.
Obstetrics & Gynecology
11633 HAWTHORNE BLVD, SUITE 300
HAWTHORNE, CA 90250
Los Angeles County (310) 355-1950
HALA A.AHMED AL-SHAWE DDS
Dentist (General Practice)
11633 HAWTHORNE BLVD, #502
HAWTHORNE, CA 90250
Los Angeles County (310) 644-4464
MR. DUANE E BRIDGES M.D.
Internal Medicine (Clinical Cardiac Electrophysiology)
11633 HAWTHORNE BLVD, #400
HAWTHORNE, CA 90250
Los Angeles County (310) 973-0600
SHAZIA M HASAN MD INC
Internal Medicine (Cardiovascular Disease)
11633 HAWTHORNE BLVD, SUITE 400
HAWTHORNE, CA 90250
Los Angeles County (310) 675-1400
ALWAYS STAY HOME NURSING SERVICE INC.
Home Health
11633 HAWTHORNE BLVD, SUITE 220
HAWTHORNE, CA 90250
Los Angeles County (310) 219-2857

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 Derek Williams's NPI number?

The NPI number for Derek Williams is 1467405753. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Derek Williams located?

Derek Williams practices at 11633 Hawthorne Blvd Suite 410, Hawthorne, CA 90250. The listed phone number is (310) 792-4450.

What is Derek Williams's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Derek Williams enrolled in Medicare?

Yes. Derek Williams 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 Derek Williams was last updated on March 7, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.