Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Kathryn Woltjen, CNM CRNP RN
Nurse Practitioner in Phila, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932185576
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Registry record
Entity type Individual (Type 1)
Name Mary Kathryn Woltjen
Credential CNM CRNP RN
Sex Female
Practice address 7604 Central Ave, Suite 101, Phila, PA, 19111
Phone (215) 745-8989
Fax (215) 745-9072
Enumeration date Dec 15, 2005
Last updated in NPPES Sep 11, 2025
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License TP004106G (PA) Primary
364SW0102X Women's Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License MW008564L (PA) Secondary
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.
Frequently asked questions
What is the NPI number for Mary Woltjen?
The National Provider Identifier (NPI) for Mary Woltjen is 1932185576, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Woltjen practice?
The practice location on file with NPPES is in Phila, PA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.