J.COREY ANDREW WILLIAMS
NPI 1316287808
Psychiatry & Neurology - Psychiatry in Bryn Mawr, PA
About J.corey Andrew Williams NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
J.COREY ANDREW WILLIAMS (NPI 1316287808) is an individual psychiatry provider in Bryn Mawr, Pennsylvania, licensed in Pennsylvania (MD466287) and active in the NPI registry since February 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in Baltimore, and is a graduate of Boston University School Of Medicine.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
J.corey Andrew Williams 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 Reassignments
2Medicare enrollment records show J.corey Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21239
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia enrollment
- 861 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 19010 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.
BRYN MAWR, PA 19010
BRYN MAWR, PA 19010
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 J.corey Williams's NPI number?
The NPI number for J.corey Williams is 1316287808. It was assigned to this individual provider in the NPPES registry on February 21, 2013.
Where is J.corey Williams located?
J.corey Williams practices at 130 S Bryn Mawr Ave, Bryn Mawr, PA 19010. The listed phone number is (484) 337-4286.
What is J.corey Williams's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is J.corey Williams enrolled in Medicare?
Yes. J.corey 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 J.corey Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), J.corey Williams reassigns Medicare benefits to 2 organizations: Medstar Medical Group II LLC (Baltimore, MD) and Mgmc LLC (Washington, DC). 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 J.corey 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 J.corey Williams was last updated on July 1, 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.
# J.corey Andrew Williams · NPI 1316287808
Psychiatry physician in Bryn Mawr, Pennsylvania. Individual provider, active in the CMS NPPES registry since February 21, 2013.
## Identity
- **NPI:** 1316287808 (Entity type: Individual)
- **Enumerated:** February 21, 2013
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** MD466287 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 130 S BRYN MAWR AVE, Bryn Mawr, PA 19010
- **Phone:** (484) 337-4286 · **Fax:** (484) 337-4293
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD); Mgmc LLC (NPI 1316949654, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine
## Record status
- **NPPES last updated:** July 1, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1316287808) · Data from the CMS NPPES public registry.