Denis Patrick Callahan, MSW, LGSW - Clinical Social Worker in Nashua, NH

Denis Patrick Callahan, MSW, LGSW is a Social Worker - Clinical based in Nashua, New Hampshire. Denis Patrick Callahan is licensed to practice in New Hampshire (license number 1608) and his current practice location is 5 Pine Street Ext Unit 2s, Nashua, New Hampshire. He can be reached at his office (for appointments etc.) via phone at (202) 903-6876.

NPI number for Denis Patrick Callahan is 1134364672 and his current mailing address is 5 Pine Street Ext Unit 2s, Nashua, New Hampshire. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1134364672.

Contact Information

Denis Patrick Callahan, MSW, LGSW
5 Pine Street Ext Unit 2s,
Nashua, NH 03060-3250
(202) 903-6876
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameDenis Patrick Callahan
GenderMale
SpecialitySocial Worker - Clinical
Location5 Pine Street Ext Unit 2s, Nashua, New Hampshire
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1134364672
  • Provider Enumeration Date: 12/12/2008
  • Last Update Date: 02/13/2022

Medical Identifiers

Medical identifiers for Denis Patrick Callahan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134364672NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical 1608 (New Hampshire)Primary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Denis Patrick Callahan is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Denis Patrick Callahan, MSW, LGSW
5 Pine Street Ext Unit 2s,
Nashua, NH 03060-3250

Ph: (202) 903-6876
Denis Patrick Callahan, MSW, LGSW
5 Pine Street Ext Unit 2s,
Nashua, NH 03060-3250

Ph: (202) 903-6876

Reviews and Comments


Social Worker in Nashua, NH

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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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