Mary Williams, CRNP

NPI: 1538168653

Mary Williams, CRNP

Q: What is Mary Williams's NPI number?

Mary Williams's NPI number is 1538168653, a unique 10-digit identifier issued by CMS.

Q: What does Mary Williams specialize in?

Mary Williams specializes in Nurse Practitioner, taxonomy code 363LP0200X.

Q: Where does Mary Williams practice?

Mary Williams practices in York, PA 17403-5160.

Q: When was Mary Williams's NPI issued?

Mary Williams's NPI was issued on July 20, 2005.

Q: What is Mary Williams's provider type?

Mary Williams is an Individual Provider under CMS NPI Type 1.

ActiveIndividual ProviderNurse Practitioner

NPI issued: July 20, 2005

Quick Facts

NPI Number

1538168653

TypeIndividual

StatusActive

SpecialtyNurse Practitioner

Taxonomy363LP0200X — Nurse Practitioner

Phone

(717) 741-9063

StatePA

NPI Validation Status: Verified

✅Valid 10-digit NPI number (1538168653)

✅Active status confirmed

✅Verified by CMS NPPES Registry

✅HIPAA compliant identifier

✅Enumeration date on file (July 20, 2005)

Data source: CMS NPPES

Provider Overview

MARY WILLIAMS, CRNP is a Nurse Practitioner provider based in York, PA who has been registered with CMS since 2005. This NPI is currently Active under CMS NPPES registry.

Provider Details

NPI Number1538168653

Provider TypeIndividual Provider

GenderFemale

CredentialCRNP

StatusActive

Enumeration DateJuly 20, 2005

Practice Location

CityYork

StatePA

ZIP Code17403-5160

Phone(717) 741-9063

Specialties & Licenses

★ Primary

SpecialtyNurse Practitioner

Taxonomy Code363LP0200X

License StatePA

Mailing Address

CityYork

StatePA

ZIP Code17403-5160

Phone(717) 741-9063

Same as practice location

How to Use This NPI

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For Insurance Billing

Use NPI 1538168653 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.

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For Credentialing

Reference NPI 1538168653for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.

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For Patients

Share NPI 1538168653 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.

About Nurse Practitioner

Family Nurse Practitioners (FNPs) provide comprehensive primary healthcare services across the lifespan, including diagnostic assessments, prescribing medications, and disease prevention education.

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