Melissa A. Callahan, CRNP
- Part D claims, 2024
- 490
- Industry payments
- $14,354
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1501 Lower State Rd, North Wales, PA 19454
- Practice phone
- Call (267) 669-0300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ethos Treatment
North Wales, Pennsylvania
Find Melissa Callahan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Melissa A. Callahan is a gerontology nurse practitioner in North Wales, Pennsylvania
Melissa Callahan practices at Ethos Treatment in North Wales, Pennsylvania.
Melissa Callahan's NPI, 1669411393, was assigned on June 6, 2006. Melissa Callahan holds Pennsylvania license TP006181H.
- NPI
- 1669411393NPI Registry (opens in a new tab)
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Practice phone
- (267) 669-0300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Melissa A. Callahan practices at Ethos Treatment in North Wales, Pennsylvania
Melissa Callahan's primary practice is Ethos Treatment, at 1501 Lower State Rd, North Wales, PA 19454 in Montgomery County. The practice phone is (267) 669-0300.
- Ethos Treatment1501 Lower State Rd, North Wales, PA 19454 · Montgomery CountyPhone(267) 669-0300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Melissa A. Callahan is affiliated with 2 sites of care
Melissa Callahan's primary practice is Ethos Treatment in North Wales, Pennsylvania. Dmand AI also links Melissa Callahan to 1 physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Melissa A. Callahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Melissa Callahan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ethos Treatment | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Melissa A. Callahan is one of 425 gerontology nurse practitioners in Pennsylvania
Gerontology is Melissa Callahan's primary specialty in the NPI Registry, under taxonomy code 363LG0600X. Melissa Callahan is licensed in Pennsylvania.
Specialties and state licenses
- Gerontology nurse practitioner, PennsylvaniaPrimary
Gerontology nurse practitioners near Melissa Callahan
Counts of gerontology nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Melissa A. Callahan's patients have a median age of 38
Across all payers, Dmand AI patient panel data puts Melissa Callahan's median patient age at 38, with 44% women.
Melissa Callahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women44%
- Men55%
Source: Dmand AI Patient Panel Data
Melissa A. Callahan wrote 490 Medicare Part D claims in 2024
In 2024, Melissa Callahan wrote 490 Medicare Part D claims for 88 patients. 93% of them were for generic drugs.
Melissa Callahan's Part D claims by kind of drug, 2024
- Generic455 claims93%
- Brand-name and other35 claims7%
Drug classes CMS tracks in Melissa Callahan's Part D claims, 2024
- Antibiotics4%22 of 490 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Melissa A. Callahan received $14,354 in industry payments in 2025
CMS Open Payments shows 51 general payments to Melissa Callahan from 7 drug and device companies in 2025. Honoraria make up the largest share, 47% of the total. Braeburn Inc. paid the most, $11,130.
General payments to Melissa Callahan by kind, 2025 to 2025
- Honoraria$6,75047%
- Travel and lodging$4,82134%
- Speaker and faculty fees$1,46010%
- Food and beverage$1,3239%
Companies that paid Melissa Callahan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Melissa A. Callahan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Melissa A. Callahan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Melissa A. Callahan's NPI number?
Melissa A. Callahan's NPI number is 1669411393. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What does Melissa A. Callahan specialize in?
Melissa A. Callahan is a gerontology nurse practitioner in North Wales, Pennsylvania. The primary specialty in the NPI Registry is Gerontology Nurse Practitioner (taxonomy code 363LG0600X).
Where does Melissa A. Callahan practice?
Melissa Callahan practices at 1501 Lower State Rd, North Wales, PA 19454. Melissa Callahan's primary practice is Ethos Treatment in North Wales, Pennsylvania. Dmand AI also links Melissa Callahan to 1 physician office.
What is Melissa A. Callahan's office phone number?
The practice phone on file for Melissa Callahan is (267) 669-0300.
What is Melissa A. Callahan's medical license number?
Melissa Callahan holds Pennsylvania license TP006181H.
Has Melissa A. Callahan received payments from drug or device companies?
CMS Open Payments shows $14,354 in general payments to Melissa Callahan from 7 companies from 2025 to 2025. The largest total came from Braeburn Inc.
How long has Melissa A. Callahan been practicing?
Melissa Callahan's NPI was assigned in 2006.
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