ESTRELANIA S WILLIAMS M.D.
NPI 1164816252
Obstetrics & Gynecology in Santa Rosa, CA

Active since March 26, 2015PECOS EnrolledAccepts Medicare Assignment
500 DOYLE PARK DR STE 103, SANTA ROSA, CA 95405(707) 579-1102(707) 579-1386 Get Directions Write a Review

NPPES record last updated: October 16, 2019. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 16, 2019, Oct 10, 2019 (2 updates tracked since 2019).

About Estrelania S Williams M.d. NPPES

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

ESTRELANIA S WILLIAMS M.D. (NPI 1164816252) is an individual obstetrics & gynecology provider in Santa Rosa, California, licensed in California (A165780) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Icahn School Of Medicine At Mount Sinai (2015).

NPPES Registry Identity

NPI1164816252
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameESTRELANIA S WILLIAMSCredential: M.D.
Location Address500 DOYLE PARK DR STE 103Santa Rosa, CA 95405-4559
Mailing Address500 Doyle Park Dr, Ste 103Santa Rosa, CA 95405-4559 · (707) 579-1102 · Fax (707) 579-1386
Fax(707) 579-1386
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 2015
Enumeration DateMarch 26, 2015
Last NPPES UpdateOctober 16, 20192 updates tracked since enumeration
NPI 1164816252 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License Licensed in CA · A165780
Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

500 DOYLE PARK DR STE 103, Santa Rosa, CA 95405

Secondary Practice Location 1

Location 150 E 98th St Apt 14HNew York, NY 10029-6552 · Phone (347) 480-1547

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

Estrelania S 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 ID2365874302
PECOS Enrollment IDI20191113002828
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95405 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
$142.00 typical visit price
range $63.04 – $187.01
Typical copayment $35.50 (range $15.76 – $46.75)
Most-billed visit code 99204
Established Patient
$77.94 typical visit price
range $21.02 – $153.40
Typical copayment $19.48 (range $5.25 – $38.35)
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 5

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

Advanced Practice Midwife
500 DOYLE PARK DR STE 103
SANTA ROSA, CA 95405
Advanced Practice Midwife
500 DOYLE PARK DR STE 103
SANTA ROSA, CA 95405
Advanced Practice Midwife
500 DOYLE PARK DR STE 103
SANTA ROSA, CA 95405
Nurse Practitioner (Family)
500 DOYLE PARK DR STE 103
SANTA ROSA, CA 95405
Nurse Practitioner
500 DOYLE PARK DR STE 103
SANTA ROSA, CA 95405

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 Estrelania Williams's NPI number?

The NPI number for Estrelania Williams is 1164816252. It was assigned to this individual provider in the NPPES registry on March 26, 2015.

Where is Estrelania Williams located?

Estrelania Williams practices at 500 Doyle Park Dr Ste 103, Santa Rosa, CA 95405. The listed phone number is (707) 579-1102.

What is Estrelania Williams's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Estrelania Williams enrolled in Medicare?

Yes. Estrelania 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 Estrelania Williams was last updated on October 16, 2019. NPI Profile syncs with the weekly NPPES data releases published by CMS.