ALICIA ANDREA TOBIN-WILLIAMS MD
NPI 1811942204
Obstetrics & Gynecology in Cameron Park, CA

Q: What is Alicia Tobin-williams's NPI number?

The NPI number for Alicia Tobin-williams is 1811942204. It was assigned to this individual provider in the NPPES registry on May 23, 2006. The provider is also known as Alicia Andrea Tobin.

Q: What is Alicia Tobin-williams's specialty?

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

Active since May 23, 2006PECOS Enrolled

3501 PALMER DR, SUITE 204, CAMERON PARK, CA 95682(530) 672-7040(530) 672-7061 Get Directions Write a Review

NPPES record last updated: January 12, 2016. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About Alicia Andrea Tobin-williams Md NPPES

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

ALICIA ANDREA TOBIN-WILLIAMS MD (NPI 1811942204) is an individual obstetrics & gynecology provider in Cameron Park, California, licensed in California (A92932) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811942204

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameALICIA ANDREA TOBIN-WILLIAMSCredential: MD

Location Address3501 PALMER DR, SUITE 204Cameron Park, CA 95682-8276

Mailing AddressPo Box 45680San Francisco, CA 94145-0680 · (530) 672-7060 · Fax (530) 672-7061

Phone(530) 672-7040

Fax(530) 672-7061

Sole ProprietorNo

Enumeration DateMay 23, 2006

Last NPPES UpdateJanuary 12, 2016

✔ NPI 1811942204 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 · A92932

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.

3501 PALMER DR, Cameron Park, CA 95682

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Other Names 1

Former Name (1)Alicia Andrea Tobin

Other Identifiers 1

Medicare UPINI49680

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alicia Andrea Tobin-williams Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

Medicare enrollment records show Alicia Tobin-williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Marshall Medical Center

Same address

Obstetrics & Gynecology

3501 PALMER DR, SUITE 204
Cameron Park, CA 95682

Reassigned Medicare billing, California enrollment
152 clinicians in this Medicare group

NPI 1245384742 (530) 626-7061

Chw Medical Foundation

0.5 mi

Multi-Specialty

3427 ROBIN LN, SUITE 100
Cameron Park, CA 95682

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Dignity Health Medical Foundation
1,191 clinicians in this Medicare group

NPI 1922238542 (530) 676-7337

Obhg California, P.C.

2,142 mi

Obstetrics & Gynecology

777 LOWNDES HILL RD BLDG 1
Greenville, SC 29607

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Obhg California PC
711 clinicians in this Medicare group

NPI 1215258892 (800) 967-2289

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95682 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

$137.20 typical visit price

range $60.44 – $180.85

Typical copayment $34.30 (range $15.11 – $45.21)

Most-billed visit code 99204

Established Patient

$75.03 typical visit price

range $19.88 – $148.15

Typical copayment $18.75 (range $4.97 – $37.03)

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 7

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

DR. MARK MANSOUR M.D.

Internal Medicine (Rheumatology)

3501 PALMER DR, SUITE 201
CAMERON PARK, CA 95682

El Dorado County (530) 672-7040

MICHAEL C. YANG, MD

Clinic/Center (Pain)

3501 PALMER DR, SUITE 204
CAMERON PARK, CA 95682

El Dorado County (530) 672-1311

MARSHALL SURGERY CENTER, LLC

Clinic/Center (Ambulatory Surgical)

3501 PALMER DR, STE 100
CAMERON PARK, CA 95682

El Dorado County (530) 676-6120

DR. JASON LYNN NELLES M.D.

Urology

3501 PALMER DR, SUITE 201
CAMERON PARK, CA 95682

El Dorado County (530) 626-9488

MARSHALL MEDICAL CENTER

Obstetrics & Gynecology

3501 PALMER DR, SUITE 204
CAMERON PARK, CA 95682

El Dorado County (530) 626-7061

DR. CHRISTINE L. CAMBRIDGE MD

Obstetrics & Gynecology

3501 PALMER DR, SUITE 204
CAMERON PARK, CA 95682

El Dorado County (530) 672-7060

MS. DEBORAH BALL FALLON RNP

Nurse Practitioner (Family)

3501 PALMER DR, SUITE 204
CAMERON PARK, CA 95682

El Dorado County (530) 672-1311

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 Alicia Tobin-williams's NPI number?

The NPI number for Alicia Tobin-williams is 1811942204. It was assigned to this individual provider in the NPPES registry on May 23, 2006. The provider is also known as Alicia Andrea Tobin.

Where is Alicia Tobin-williams located?

Alicia Tobin-williams practices at 3501 Palmer Dr Suite 204, Cameron Park, CA 95682. The listed phone number is (530) 672-7040.

What is Alicia Tobin-williams's specialty?

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

Is Alicia Tobin-williams enrolled in Medicare?

Yes. Alicia Tobin-williams is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Alicia Tobin-williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alicia Tobin-williams reassigns Medicare benefits to 3 organizations: Marshall Medical Center (Cameron Park, CA), Chw Medical Foundation (Cameron Park, CA) and Obhg California, P.C. (Greenville, SC). 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 Alicia Tobin-williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alicia Tobin-williams was last updated on January 12, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.