Leonard M Zir, MD - Medicare Internal Medicine in Cambridge, MA

Leonard M Zir, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Cambridge, Massachusetts. His current practice location is 300 Mount Auburn St, Suite 310, Cambridge, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 497-1560.

Leonard M Zir is licensed to practice in Massachusetts (license number 34331) 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 1275509150.

Contact Information

Leonard M Zir, MD
300 Mount Auburn St, Suite 310,
Cambridge, MA 02138-5600
(617) 497-1560
(617) 497-1109



Physician's Profile

Full NameLeonard M Zir
GenderMale
SpecialityInternal Medicine - Cardiovascular Disease
Location300 Mount Auburn 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: 1275509150
  • Provider Enumeration Date: 02/28/2006
  • Last Update Date: 04/22/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 3072521913
  • Enrollment ID: I20080617000646

Medical Identifiers

Medical identifiers for Leonard M Zir such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275509150NPI-NPPES
6187188MedicaidMA
B32105OtherMABCBS
034331OtherMATUFTS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 34331 (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. Leonard M Zir allows following entities to bill medicare on his behalf.
Entity NameMacro, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942251335
PECOS PAC ID: 9537183108
Enrollment ID: O20060123000212

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› Verified 6 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. Leonard M Zir 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
Leonard M Zir, MD
300 Mount Auburn St, Suite 310,
Cambridge, MA 02138-5600

Ph: (617) 497-1560
Leonard M Zir, MD
300 Mount Auburn St, Suite 310,
Cambridge, MA 02138-5600

Ph: (617) 497-1560

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Drinking alcohol over a long period of time profoundly affects the brain, which adapts to the intoxicant and causes withdrawal symptoms when consumption stops.

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Internal Medicine Doctors in Cambridge, MA

Yun- Ting Eric Yeh, M.D.
Cardiovascular 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.
Cardiovascular 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
Cardiovascular 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.
Cardiovascular 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
Cardiovascular 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.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 29 Everett St, Cambridge, MA 02138
Phone: 617-349-8222    
Dr. Alexandra Vania Chabrerie, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 330 Mount Auburn Street, Department Of Medicine, Cambridge, MA 02138
Phone: 617-492-3500    

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