Mary B Callahan, DO
Internal Medicine, Cardiovascular Disease in Sandwich, Massachusetts
1518968882- Practice location
- 68A Route 6A, Post Office Box 1757, Sandwich, MA 02563-1757
- Phone
- 774-413-5457
- Fax
- 773-413-5985
- Last updated
- June 26, 2026
Mary B Callahan is an Internal Medicine, Cardiovascular Disease based in Sandwich, MA. Mary B Callahan practices in Sandwich, MA and has the professional credentials of DO. The NPI Number for Mary B Callahan is 1518968882 and holds a License No. 160179 (MA). The current practice location address for Mary B Callahan is 68A Route 6A, Post Office Box 1757, Sandwich, MA 02563-1757 and can be reached out via phone at 774-413-5457 and via fax at 773-413-5985.
Provider Profile Details
- NPI Number
- 1518968882
- Provider Name
- Mary B Callahan
- Credential
- DO
- Provider Entity Type
- Individual
- Gender
- Female
- Address
- 68A Route 6A, Post Office Box 1757, Sandwich, MA 02563-1757
- Phone Number
- 774-413-5457
- Fax Number
- 773-413-5985
- Primary Taxonomy
- Internal Medicine, Cardiovascular Disease · 207RC0000X
- Sole Proprietor
- Yes
- Provider Enumeration Date
- August 9, 2005
- Last Update Date
- June 26, 2026
- Certification Date
- June 26, 2026
- NPI Status
- Active
Provider Business Practice Location Address Details
- Address
- 68A Route 6A
Post Office Box 1757
Sandwich, MA 02563-1757 - City
- Sandwich
- State
- Massachusetts
- Zip
- 02563-1757
- Phone Number
- 774-413-5457
- Fax Number
- 773-413-5985
Provider Business Mailing Address Details
- Address
- 68A Route 6A
Post Office Box 1757
Sandwich, MA 02563-1864 - City
- Sandwich
- State
- MA
- Zip
- 02563-1864
- Phone Number
- 774-413-5457
- Fax Number
- 774-413-5985
License Information
- License Number
- 160179
- License State
- MA
- Taxonomy
- Internal Medicine, Cardiovascular Disease · 207RC0000X · Primary
Legacy Identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| No legacy identifiers (Medicaid, Medicare or plan IDs) are on file for this provider. | |||
Other Internal Medicine, Cardiovascular Disease providers near Sandwich, MA
View all Internal Medicine, Cardiovascular Disease providers in Sandwich →- Cardiovascular Associates Of Sandwich, LLCInternal Medicine, Cardiovascular Disease · NPI 1851717474
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- Lauren W Bierman, MDOphthalmology · NPI 1861888539
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Frequently Asked Questions
What is the NPI number of Mary B Callahan, DO?
The NPI number of Mary B Callahan, DO is 1518968882. It was assigned on August 9, 2005 and is currently active in the NPPES registry.
What is the specialty of Mary B Callahan, DO?
Mary B Callahan, DO is registered under the primary taxonomy Internal Medicine, Cardiovascular Disease (code 207RC0000X), licensed in MA under license number 160179.
Where does Mary B Callahan, DO practice?
The practice location is 68A Route 6A, Post Office Box 1757, Sandwich, MA 02563-1757. The office can be reached at 774-413-5457 (phone) or 773-413-5985 (fax).
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 1518968882 directly on the NPPES registry website.