Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Catherine McElwain, MSN, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1215994157

Catherine McElwain, MSN, FNP-BC is a Family Nurse Practitioner in Philadelphia, Pennsylvania. Works from 4 locations. Licensed in Colorado.

Licensed in
CO
In the registry since
2006
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

3401 Market St
Philadelphia, PA 19104-3318
Phone: (215) 220-4700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1900 Wardenburg Dr, Boulder, CO 80309-6074 — (303) 492-5101
  • 2111 Champa St, Denver, CO 80205-2529 — (303) 312-2217
  • 7403 Church Ranch Blvd, Westminster, CO 80021-6074 — (303) 372-3444

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 3264 (CO)

Record details

NPI number1215994157
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , FNP-BC
Sole proprietorNo
NPI enumeratedApril 26, 2006
Last updated in NPPESJuly 6, 2021
Certification dateJuly 6, 2021

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $292 5 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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