Melissa Callahan, CRNP
NPI 1669411393 · Gerontology Nurse Practitioner · Exton, PA
Melissa Callahan, CRNP is a Gerontology Nurse Practitioner provider in Exton, PA (NPI 1669411393).
Provider details
- NPI number
- 1669411393
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- TP006181H (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 46 | 14 |
| Omeprazole | 19 | 11 |
| Atorvastatin Calcium | 18 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 18 | 14 |
| Cyclobenzaprine Hcl | 17 | — |
| Trazodone Hcl | 17 | 11 |
| Quetiapine Fumarate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,977 across 47 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-06
- Last updated
- 2024-02-26
- Certified
- 2024-02-26
Frequently asked questions
- What is Melissa Callahan's NPI number?
- Melissa Callahan's National Provider Identifier (NPI) is 1669411393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Callahan's specialty?
- Melissa Callahan is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Melissa Callahan located?
- Melissa Callahan's practice location on file with NPPES is 320 Exton Cmns, Exton, PA 19341-2450.
- What is Melissa Callahan's phone number?
- The practice phone number listed in the NPPES registry for Melissa Callahan is (866) 268-6609.
- Is Melissa Callahan's NPI active?
- Yes — Melissa Callahan's NPI (1669411393) is active in the NPPES registry as of the last update on 2024-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.