Mary B Callahan, DO - Medicare Cardiovascular Disease (cardiology) in Hyannis, MA

Mary B Callahan, DO is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Hyannis, Massachusetts. She went to University Of New England, College Of Osteo Medicine and graduated in 1992 and has 32 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). Her current practice location is 25 Main St, Hyannis, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (508) 778-1829.

Mary B Callahan is licensed to practice in Massachusetts (license number 160179) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1518968882.

Contact Information

Mary B Callahan, DO
25 Main St,
Hyannis, MA 02601-3129
(508) 778-1829
(508) 778-0113

Map and Direction




Physician's Profile

Full NameMary B Callahan
GenderFemale
SpecialityCardiovascular Disease (cardiology)
Experience32 Years
Location25 Main St, Hyannis, Massachusetts
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mary B Callahan attended and graduated from University Of New England, College Of Osteo Medicine in 1992
  NPI Data:
  • NPI Number: 1518968882
  • Provider Enumeration Date: 08/09/2005
  • Last Update Date: 03/07/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1254422603
  • Enrollment ID: I20070814000547

Medical Identifiers

Medical identifiers for Mary B Callahan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1518968882NPI-NPPES
2675818OtherMAAETNA
3017490OtherMANEIGHBORHOOD HEALTH
3200680MedicaidMA
J21736OtherMABLUE CROSS BLUE SHIELD
160179OtherMATUFTS
000000024479OtherMABMC HEALTHNET
1518968882OtherMABOSTON MEDICAL CENTER
1518968882OtherMAUNICARE
11079014OtherCAQH
69586OtherMAHARVARD PILGRIM
160179OtherMAMA LICENSE
1518968882OtherMAMEDICARE ID
1518968882OtherMAHEALTH NET/ TRICARE NORTH
MC0380698GOtherMAMA CONTROLLED SUBSTANCE
0058769OtherMACIGNA
04-00730OtherMAUNITED HEALTHCARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 160179 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Beth Israel Deaconess Hospital PlymouthPlymouth, MAHospital

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Mary B Callahan allows following entities to bill medicare on her behalf.
Entity NameCardiovascular Associates Of Sandwich Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851717474
PECOS PAC ID: 4183848963
Enrollment ID: O20140618000147

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. Mary B Callahan is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Mary B Callahan, DO
25 Main St,
Hyannis, MA 02601-3129

Ph: (508) 778-1829
Mary B Callahan, DO
25 Main St,
Hyannis, MA 02601-3129

Ph: (508) 778-1829

Reviews and Comments


Internal Medicine Doctors in Hyannis, MA

Mary W Crowell, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1030 Falmouth Rd, Hyannis, MA 02601
Phone: 774-470-5080    
Dr. Lawrence Bradley Pliss, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 91 Camp Street, Hyannis, MA 02601
Phone: 508-790-5955    Fax: 508-775-8654
Cormac Francis Coyle, MD
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 433 West Main St, Hyannis, MA 02601
Phone: 508-778-4777    Fax: 508-771-9555
Sheila Maier, D.O.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1030 Falmouth Rd Ste 201, Hyannis, MA 02601
Phone: 774-470-5080    
Sarita Bajracharya, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 22 Lewis Bay Rd, Hyannis, MA 02601
Phone: 508-862-5562    
Dr. Natalie Ann Mariano, M.D.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 145 Falmouth Rd, Hyannis, MA 02601
Phone: 508-771-3190    Fax: 508-771-0940
Dr. Philip N Chiotellis, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 52 Park St, Hyannis, MA 02601
Phone: 508-771-8804    Fax: 508-790-9453

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.