Michael V Callahan, MD - Medicare Internal Medicine in Cambridge, MA

Michael V Callahan, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Cambridge, Massachusetts. His current practice location is 65 Landsdowne St, Cambridge, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 768-8800.

Michael V Callahan is licensed to practice in Massachusetts (license number 213200) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1770698821.

Contact Information

Michael V Callahan, MD
65 Landsdowne St,
Cambridge, MA 02139-4232
(617) 768-8800
Not Available



Physician's Profile

Full NameMichael V Callahan
GenderMale
SpecialityInternal Medicine - Infectious Disease
Location65 Landsdowne St, Cambridge, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1770698821
  • Provider Enumeration Date: 08/20/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4688610033
  • Enrollment ID: I20050707000357

Medical Identifiers

Medical identifiers for Michael V Callahan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1770698821NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease 213200 (Massachusetts)Primary

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. Michael V Callahan allows following entities to bill medicare on his behalf.
Entity NameMassachusetts General Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801874573
PECOS PAC ID: 2466365820
Enrollment ID: O20031111000434

News Archive

Flagship launches Rubius to develop functionalized red blood cells for treatment of serious diseases

Flagship Ventures, a leading innovation and venture firm focused on healthcare and sustainability, announced it has launched Rubius Therapeutics, to develop functionalized red blood cells for the treatment of autoimmune conditions, metabolic diseases, cancer, and other serious diseases.

Oregon sues Oracle over failed website

Oregon filed its long-anticipated lawsuit against Oracle America and the company's top executives, blaming them for the state's non-functioning health insurance exchange and saying they lied, breached contracts and engaged in "a pattern of racketeering activity."

Certain genetic variations linked to tooth decay, periodontitis

Certain genetic variations may be linked to higher rates of tooth decay and aggressive periodontitis, according to two recently published papers by researchers at the University of Pittsburgh School of Dental Medicine and their collaborators.

Sexual activity rarely causes heart attack

Sex is rarely the cause of a heart attack, and most heart disease patients are safe to resume sexual activity after a heart attack, according to a research letter published today in the Journal of the American College of Cardiology.

New tool provides a standard way to measure effects of caring for survivors of TBI

A traumatic brain injury happens in an instant: a battlefield blast, a car crash, a bad fall. But the effects can last a lifetime - and can leave the survivor dependent on daily care from their loved ones for decades.

Read more Medical News

› Verified 9 days ago

Entity NameThe General Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023049236
PECOS PAC ID: 6507803806
Enrollment ID: O20080313000351

News Archive

Flagship launches Rubius to develop functionalized red blood cells for treatment of serious diseases

Flagship Ventures, a leading innovation and venture firm focused on healthcare and sustainability, announced it has launched Rubius Therapeutics, to develop functionalized red blood cells for the treatment of autoimmune conditions, metabolic diseases, cancer, and other serious diseases.

Oregon sues Oracle over failed website

Oregon filed its long-anticipated lawsuit against Oracle America and the company's top executives, blaming them for the state's non-functioning health insurance exchange and saying they lied, breached contracts and engaged in "a pattern of racketeering activity."

Certain genetic variations linked to tooth decay, periodontitis

Certain genetic variations may be linked to higher rates of tooth decay and aggressive periodontitis, according to two recently published papers by researchers at the University of Pittsburgh School of Dental Medicine and their collaborators.

Sexual activity rarely causes heart attack

Sex is rarely the cause of a heart attack, and most heart disease patients are safe to resume sexual activity after a heart attack, according to a research letter published today in the Journal of the American College of Cardiology.

New tool provides a standard way to measure effects of caring for survivors of TBI

A traumatic brain injury happens in an instant: a battlefield blast, a car crash, a bad fall. But the effects can last a lifetime - and can leave the survivor dependent on daily care from their loved ones for decades.

Read more Medical News

› Verified 9 days ago

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. Michael V 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
Michael V Callahan, MD
2955 Tilden St Nw,
Washington, DC 20008-1150

Ph: (617) 768-8800
Michael V Callahan, MD
65 Landsdowne St,
Cambridge, MA 02139-4232

Ph: (617) 768-8800

News Archive

Flagship launches Rubius to develop functionalized red blood cells for treatment of serious diseases

Flagship Ventures, a leading innovation and venture firm focused on healthcare and sustainability, announced it has launched Rubius Therapeutics, to develop functionalized red blood cells for the treatment of autoimmune conditions, metabolic diseases, cancer, and other serious diseases.

Oregon sues Oracle over failed website

Oregon filed its long-anticipated lawsuit against Oracle America and the company's top executives, blaming them for the state's non-functioning health insurance exchange and saying they lied, breached contracts and engaged in "a pattern of racketeering activity."

Certain genetic variations linked to tooth decay, periodontitis

Certain genetic variations may be linked to higher rates of tooth decay and aggressive periodontitis, according to two recently published papers by researchers at the University of Pittsburgh School of Dental Medicine and their collaborators.

Sexual activity rarely causes heart attack

Sex is rarely the cause of a heart attack, and most heart disease patients are safe to resume sexual activity after a heart attack, according to a research letter published today in the Journal of the American College of Cardiology.

New tool provides a standard way to measure effects of caring for survivors of TBI

A traumatic brain injury happens in an instant: a battlefield blast, a car crash, a bad fall. But the effects can last a lifetime - and can leave the survivor dependent on daily care from their loved ones for decades.

Read more News

› Verified 9 days ago


Internal Medicine Doctors in Cambridge, MA

Yun- Ting Eric Yeh, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 300 Mount Auburn St Ste 310, Cambridge, MA 02138
Phone: 617-497-1560    Fax: 617-497-1190
Dr. Catharine M. Mintzer, M.D.
Infectious Disease
Medicare: Not Enrolled in Medicare
Practice Location: 725 Concord Ave, Suite 4100, Cambridge, MA 02138
Phone: 617-864-8822    Fax: 617-547-5367
Kenneth J. Gold, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 75 Mount Auburn St, Huhs, Cambridge, MA 02138
Phone: 617-495-8414    Fax: 617-496-0560
Dr. Margaret Love Mclaughlin, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 300 Mount Auburn St, Suite 515, Cambridge, MA 02138
Phone: 617-864-1571    Fax: 617-864-1507
Dr. Valerie Pronio-stelluto, MD
Infectious Disease
Medicare: Not Enrolled in Medicare
Practice Location: 330 Mount Auburn St, Cambridge, MA 02138
Phone: 617-499-5140    Fax: 617-499-5593
Dr. Ayse A. Atasoylu, M.D., M.P.H.
Infectious Disease
Medicare: Not Enrolled in Medicare
Practice Location: 29 Everett St, Cambridge, MA 02138
Phone: 617-349-8222    
Dr. Alexandra Vania Chabrerie, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 330 Mount Auburn Street, Department Of Medicine, Cambridge, MA 02138
Phone: 617-492-3500    

Find & Compare Providers Near You: Find and compare doctors, nursing homes, hospitals, and other health care providers in your area that accept Medicare. Get information like: Find a doctor or clinician that accepts Medicare near you.

Doctors and clinicians: Doctors and clinicians include doctors, clinicians and groups who are qualified to practice in many specialties. Each specialty focuses on certain parts of the body, periods of life, conditions, or primary care. The doctors, clinicians, and groups listed here typically work in an office or clinic setting. Also those who currently accept Medicare are included.

Hospitals: Find information about Medicare-certified hospitals and long-term care hospitals in your area, including Veterans Administration medical centers and military hospitals, across the country. Long-term care hospitals serve critically ill and medically complex patients who require extended hospital care.

Data provided: Information on www.medicareusa.org is built using open data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA).

© 2024 MedicareUsa. All rights reserved. Maintained by the Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services.