Geraldine Callahan, NP
Nurse Practitioner, Psych/Mental Health in Nashua, New Hampshire
1669865473- Practice location
- 39 Simon St Ste 5, Nashua, NH 03060-3045
- Phone
- 603-889-8648
- Fax
- —
- Last updated
- November 10, 2026
Geraldine Callahan is a Nurse Practitioner, Psych/Mental Health based in Nashua, NH. Geraldine Callahan practices in Nashua, NH and has the professional credentials of NP. The NPI Number for Geraldine Callahan is 1669865473 and holds a License No. 204352 (MA). The current practice location address for Geraldine Callahan is 39 Simon St Ste 5, Nashua, NH 03060-3045 and can be reached out via phone at 603-889-8648.
Provider Profile Details
- NPI Number
- 1669865473
- Provider Name
- Geraldine Callahan
- Credential
- NP
- Provider Entity Type
- Individual
- Gender
- Female
- Address
- 39 Simon St Ste 5, Nashua, NH 03060-3045
- Phone Number
- 603-889-8648
- Primary Taxonomy
- Nurse Practitioner, Psych/Mental Health · 363LP0808X
- Sole Proprietor
- No
- Other Names
- Geraldine Callahan, NP (Professional Name)
- Provider Enumeration Date
- March 18, 2015
- Last Update Date
- November 10, 2026
- Certification Date
- November 10, 2026
- NPI Status
- Active
Provider Business Practice Location Address Details
- Address
- 39 Simon St Ste 5
Nashua, NH 03060-3045 - City
- Nashua
- State
- New Hampshire
- Zip
- 03060-3045
- Phone Number
- 603-889-8648
Provider Business Mailing Address Details
- Address
- Po Box 314
Hudson, NH 03051-0314 - City
- Hudson
- State
- NH
- Zip
- 03051-0314
- Phone Number
- 617-827-1877
License Information
- License Number (1)
- 204352
- License State (1)
- MA
- Taxonomy (1)
- Nurse Practitioner, Psych/Mental Health · 363LP0808X
- License Number (2)
- 065522-23
- License State (2)
- NH
- Taxonomy (2)
- Nurse Practitioner · 363L00000X
- License Number (3)
- 204352
- License State (3)
- MA
- Taxonomy (3)
- Nurse Practitioner · 363L00000X
- License Number (4)
- 065522-23
- License State (4)
- NH
- Taxonomy (4)
- Nurse Practitioner, Psych/Mental Health · 363LP0808X · Primary
Legacy Identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| No legacy identifiers (Medicaid, Medicare or plan IDs) are on file for this provider. | |||
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Frequently Asked Questions
What is the NPI number of Geraldine Callahan, NP?
The NPI number of Geraldine Callahan, NP is 1669865473. It was assigned on March 18, 2015 and is currently active in the NPPES registry.
What is the specialty of Geraldine Callahan, NP?
Geraldine Callahan, NP is registered under the primary taxonomy Nurse Practitioner, Psych/Mental Health (code 363LP0808X), licensed in MA under license number 204352.
Where does Geraldine Callahan, NP practice?
The practice location is 39 Simon St Ste 5, Nashua, NH 03060-3045. The office can be reached at 603-889-8648 (phone).
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). It is used in HIPAA standard transactions.
How do I verify this NPI record?
This record is sourced from the public NPPES NPI Registry maintained by CMS. You can confirm it by searching NPI 1669865473 directly on the NPPES registry website.