JESSICA J WILLIAMS PSY.D.
NPI 1144555343
Psychologist - Clinical in Sacramento, CA
About Jessica J Williams Psy.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JESSICA J WILLIAMS PSY.D. (NPI 1144555343) is an individual clinical provider in Sacramento, California, licensed in California (23031) and active in the NPI registry since October 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
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
Jessica J Williams Psy.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.
Medicare Billing Reassignment
Medicare enrollment records show Jessica Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
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 95825 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SACRAMENTO, CA 95825
SACRAMENTO, CA 95825
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 Jessica Williams's NPI number?
The NPI number for Jessica Williams is 1144555343. It was assigned to this individual provider in the NPPES registry on October 6, 2009.
Where is Jessica Williams located?
Jessica Williams practices at 2008 Morse Ave, Sacramento, CA 95825. The listed phone number is (916) 973-7488.
What is Jessica Williams's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Jessica Williams enrolled in Medicare?
Yes. Jessica 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 organization bills Medicare for Jessica Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jessica Williams reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, CA). The 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 Jessica 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 Jessica Williams was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Jessica J Williams, PSY.D. · NPI 1144555343
Clinical provider in Sacramento, California. Individual provider, active in the CMS NPPES registry since October 6, 2009.
## Identity
- **NPI:** 1144555343 (Entity type: Individual)
- **Enumerated:** October 6, 2009
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** 23031 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2008 MORSE AVE, Sacramento, CA 95825-2135
- **Phone:** (916) 973-7488
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1548343510, Stockton, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** February 11, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1144555343) · Data from the CMS NPPES public registry.