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

Mrs. Melissa A Callahan, CRNP

Individual provider Gerontology Nurse Practitioner · NPI 1669411393

Mrs. Melissa A Callahan, CRNP is a Gerontology Nurse Practitioner in Exton, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2006.

Licensed in
PA
In the registry since
2006
Specialties on file
2
What do these letters mean?
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

See every abbreviation used in this directory →

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Practice location Address checks out

320 Exton Cmns
Exton, PA 19341-2450
Phone: (866) 268-6609
Fax: (866) 610-4542
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence TP006181H (PA)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence TP006182C (PA)

Record details

NPI number1669411393
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorNo
NPI enumeratedJune 6, 2006
Last updated in NPPESFebruary 26, 2024
Certification dateFebruary 26, 2024

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.

Honoraria $26,550 23 payments
Travel and Lodging $9,101 42 payments · travel or lodging paid or reimbursed, such as to attend a conference
Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $6,970 4 payments
Food and Beverage $3,459 61 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $1,120 2 payments

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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