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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Jean Keller, RN, NP

Family Nurse Practitioner in Linthicum Heights, MD · enumerated 2006.

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

National Provider Identifier

1073678033

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Registry record

Entity type Individual (Type 1)
Name Mary Jean Keller
Credential RN, NP
Sex Female
Practice address Mary Keller, 785 Elkridge Landing Suite #300, Linthicum Heights, MD, 21090
Phone (417) 379-7253
Fax (844) 464-0583
Enumeration date Dec 27, 2006
Last updated in NPPES Jun 10, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 091099 (MO) 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
P00635675 Other MO TRAVELERS RR MEDICARE
171101758 Medicaid AR -
1073678033 Medicaid MO -
431560263 Other MO TRICARE WEST

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.

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Frequently asked questions

Where does Mary Keller practice?
The practice location on file with NPPES is in Linthicum Heights, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Keller?
The National Provider Identifier (NPI) for Mary Keller is 1073678033, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-10.