MARY B. CALLAHAN D.O. – NPI #1518968882
Internal Medicine

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

MARY CALLAHAN is a physician located in SANDWICH, MA. NPPES has assigned the NPI number 1518968882 to MARY CALLAHAN on August 09, 2005. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 207RC0000X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Cardiovascular Disease

The NPI profile was last updated on Mar 04, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for MARY CALLAHAN below.

NPI Profile for
MARY B. CALLAHAN

NPI Number
1518968882
Enumeration Date

(about 21 years ago)
Entity Type
Type-1  Individual (Female)
Legal Name
MARY B. CALLAHAN
Credentials
D.O.
Primary location
68A ROUTE 6A
POST OFFICE BOX 1757
SANDWICH, MA 02563-1757
Phone: (774) 413-5457 Fax: (773) 413-5985
Mailing address
Same as primary location
Sole Proprietor
Yes
Updated
Certification Date
Mar 04, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Identifiers

Identifiers for MARY CALLAHAN

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

See identifiers
DescriptionIssuerStateIdentifier
otherAETNAMA2675818
otherBLUE CROSS BLUE SHIELDMAJ21736
otherBMC HEALTHNETMA000000024479
otherBOSTON MEDICAL CENTERMA1518968882
otherCAQH11079014
otherCIGNAMA0058769
otherHARVARD PILGRIMMA69586
otherHEALTH NET/ TRICARE NORTHMA1518968882
otherMA CONTROLLED SUBSTANCEMAMC0380698G
otherMA LICENSEMA160179
otherMEDICARE IDMA1518968882
otherNEIGHBORHOOD HEALTHMA3017490
otherTUFTSMA160179
otherUNICAREMA1518968882
otherUNITED HEALTHCAREMA04-00730
medicaidMA3200680
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RC0000X
- Internal Medicine / Cardiovascular Disease (Primary)
MA 160179

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
UNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE - Graduated 1992
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
MARY CALLAHAN is affiliated with the following medical group(s):
  • HOSPITAL
    • BETH ISRAEL DEACONESS HOSPITAL PLYMOUTH
      275 SANDWICH STREET
      PLYMOUTH, MA 02360
    • CLEVELAND CLINIC MARTIN NORTH HOSPITAL
      200 SE HOSPITAL AVE
      STUART, FL 34994

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.