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RACHAEL YUSON WILLIAMS M.D.
NPI 1386887362
Surgery in West Hills, CA

Active since April 07, 2009PECOS EnrolledAccepts Medicare Assignment
7325 MEDICAL CENTER DR STE 200, WEST HILLS, CA 91307(818) 981-2050(818) 981-2382 Get Directions Write a Review

NPPES record last updated: January 15, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Rachael Yuson Williams M.d. NPPES

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

RACHAEL YUSON WILLIAMS M.D. (NPI 1386887362) is an individual surgery provider in West Hills, California, licensed in California (159969) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2009).

NPPES Registry Identity

NPI1386887362
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameRACHAEL YUSON WILLIAMSCredential: M.D.
Location Address7325 MEDICAL CENTER DR STE 200West Hills, CA 91307-1938
Mailing AddressEmory University School Of Medicine, 1762 Clifton Raod, Suite J252Atlanta, GA 30322-0001 · (404) 727-9610 · Fax (404) 712-1540
Phone(818) 981-2050
Fax(818) 981-2382
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2009
Enumeration DateApril 7, 2009
Last NPPES UpdateJanuary 15, 2019
✔ NPI 1386887362 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · 159969
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
7325 MEDICAL CENTER DR STE 200, West Hills, CA 91307
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Rachael Yuson 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 ID4082832555
PECOS Enrollment IDI20190216000144
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Rachael Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grossman Medical Group Inc
Same address
Plastic and Reconstructive Surgery
7325 MEDICAL CENTER DR, SUITE 200
West Hills, CA 91307
  • Reassigned Medicare billing, California enrollment
  • 9 clinicians in this Medicare group
NPI 1518916311 (818) 981-2050
R Y Williams MD Medical Corporation
84 mi
Medical Specialty
2603 H ST
Bakersfield, CA 93301
  • Reassigned Medicare billing, California enrollment
NPI 1518672716 (661) 863-2620

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
462 services75 patients
Application of chemical to stop tissue regrowth in wound 17250
This procedure involves applying a special chemical to a wound to prevent unwanted tissue from growing back. It aids in proper healing by ensuring only healthy tissue regrows. It's a common, safe practice in wound care.
192 services42 patients
Management of oxygen chamber therapy 99183
Oxygen chamber therapy involves breathing pure oxygen in a pressurized room or tube. It's used to treat various conditions like wounds that won't heal due to diabetes or radiation injury. In this therapy, your body's tissues get more oxygen to promote healing and fight infection.
98 services13 patients
Removal of skin and tissue, 20.0 sq cm or less 11042
This procedure involves the surgical removal of skin and tissue, up to 20.0 square cm in size. It's often performed to treat conditions like skin cancer or to remove moles, warts, and other skin lesions. The area is numbed and the unwanted tissue is carefully cut out.
38 services13 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
36 services36 patients
Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less 15271
This procedure involves applying a skin substitute graft to a wound on the trunk, arms, or legs. The graft, a lab-grown skin, is used to cover a wound area of 25.0 sq cm or less, within a total wound area of 100.0 sq cm or less. It aids in healing and regeneration.
30 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91307 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
$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 2

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

GROSSMAN BURN AND WOUND ALLIANCE
Surgery (Plastic and Reconstructive Surgery)
7325 MEDICAL CENTER DR STE 200
WEST HILLS, CA 91307
Los Angeles County (818) 439-6301
NICOLE AZIZIAN PA
Physician Assistant
7325 MEDICAL CENTER DR STE 200
WEST HILLS, CA 91307
Los Angeles County (818) 981-2050

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 Rachael Williams's NPI number?

The NPI number for Rachael Williams is 1386887362. It was assigned to this individual provider in the NPPES registry on April 7, 2009.

Where is Rachael Williams located?

Rachael Williams practices at 7325 Medical Center Dr Ste 200, West Hills, CA 91307. The listed phone number is (818) 981-2050.

What is Rachael Williams's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Rachael Williams enrolled in Medicare?

Yes. Rachael 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.

Which organizations bill Medicare for Rachael Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachael Williams reassigns Medicare benefits to 2 organizations: Grossman Medical Group Inc (West Hills, CA) and R Y Williams MD Medical Corporation (Bakersfield, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rachael Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rachael Williams accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Rachael Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Rachael Williams was last updated on January 15, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.