Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Susan Chisholm, RN, CRNP

Family Nurse Practitioner in Arnold, MD · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649210717

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Registry record

Entity type Individual (Type 1)

Name Susan Chisholm

Credential RN, CRNP

Sex Female

Practice address 305 College Pkwy, Arnold, MD, 21012

Phone (410) 647-0015

Fax (410) 647-0019

Enumeration date Jun 7, 2006

Last updated in NPPES Dec 2, 2011

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R107431 (MD) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
644565900	Medicaid	MD	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Susan Chisholm practice?

The practice location on file with NPPES is in Arnold, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Susan Chisholm?

The National Provider Identifier (NPI) for Susan Chisholm is 1649210717, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-02.