LEON WILLIAMS MS, CGC
NPI 1194446344
Genetic Counselor, MS in Philadelphia, PA

Active since September 07, 2022
3500 CIVIC CENTER BLVD, PHILADELPHIA, PA 19104(215) 590-2920 Get Directions Write a Review

NPPES record last updated: March 28, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 28, 2025, Sep 7, 2022 (2 updates tracked since 2022).

About Leon Williams Ms, Cgc NPPES

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

LEON WILLIAMS MS, CGC (NPI 1194446344) is an individual genetic counselor, ms provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (GC000752) and active in the NPI registry since September 2022.

NPPES Registry Identity

NPI1194446344
Entity TypeIndividualFemale
Primary Taxonomy170300000X
Provider Legal NameLEON WILLIAMSCredential: MS, CGC
Location Address3500 CIVIC CENTER BLVDPhiladelphia, PA 19104-4395
Mailing Address4401 Penn Ave Ste 1200Pittsburgh, PA 15224-1334 · (412) 692-8413 · Fax (412) 692-6472
Sole ProprietorNo
Enumeration DateSeptember 7, 2022
Last NPPES UpdateMarch 28, 20252 updates tracked since enumeration
NPPES CertifiedMarch 28, 2025
NPI 1194446344 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyGenetic Counselor, MSOther Service Providers
Taxonomy Code170300000X
License Licensed in PA · GC000752
Definition

A masters trained health care provider who collects and interprets genetic family histories; assesses the risk of disease occurrence or recurrence; identifies interventions to manage or ameliorate disease risk; educates about inheritance, testing, management, prevention, ethical issues, resources, and research; and counsels to promote informed choices and adaptation. Certification was established in 1993 by the American Board of Genetic Counseling and prior to that by the American Board of Medical Genetics. Requirements for experience, licensure, and job responsibilities vary among the states.

3500 CIVIC CENTER BLVD, Philadelphia, PA 19104

Other Names 1

Other Name (5)Leon Williams

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.

Psychologist (Clinical)
3500 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Physician Assistant
3500 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Nurse Practitioner
3500 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Psychologist (Clinical)
3500 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Genetic Counselor, MS
3500 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Pediatrics (Pediatric Nephrology)
3500 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Pediatrics (Pediatric Endocrinology)
3500 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104
Nurse Practitioner
3500 CIVIC CENTER BLVD
PHILADELPHIA, PA 19104

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 Leon Williams's NPI number?

The NPI number for Leon Williams is 1194446344. It was assigned to this individual provider in the NPPES registry on September 7, 2022.

Where is Leon Williams located?

Leon Williams practices at 3500 Civic Center Blvd, Philadelphia, PA 19104. The listed phone number is (215) 590-2920.

What is Leon Williams's specialty?

The primary specialty registered for this NPI is Genetic Counselor, MS with taxonomy code 170300000X.

When was this NPI record last updated?

The NPPES record for Leon Williams was last updated on March 28, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.