Dr Leslie A Vensel, MD - Medicare Internal Medicine in Waltham, MA

Dr Leslie A Vensel, MD is a medicare enrolled "Internal Medicine" physician in Waltham, Massachusetts. She went to Js Weill Medical College, Cornell University and graduated in 1984 and has 40 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Massachusetts General Physicians Organization Inc and her current practice location is 40 2nd Ave, Suite 400, Waltham, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (781) 487-4350.

Dr Leslie A Vensel is licensed to practice in Massachusetts (license number 57348) 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 1336139021.

Contact Information

Dr Leslie A Vensel, MD
40 2nd Ave, Suite 400,
Waltham, MA 02451-1132
(781) 487-4350
(781) 487-4351



Physician's Profile

Full NameDr Leslie A Vensel
GenderFemale
SpecialityInternal Medicine
Experience40 Years
Location40 2nd Ave, Waltham, 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:
  • Dr Leslie A Vensel attended and graduated from Js Weill Medical College, Cornell University in 1984
  NPI Data:
  • NPI Number: 1336139021
  • Provider Enumeration Date: 10/25/2005
  • Last Update Date: 06/03/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 6800841917
  • Enrollment ID: I20050322000049

Medical Identifiers

Medical identifiers for Dr Leslie A Vensel such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336139021NPI-NPPES
3054799MedicaidMA
713954OtherMATUFTS HEALTH PLAN
J09081OtherMABCBS MA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 57348 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Partners Healthcare At Home - Home CareWaltham, MAHome health agency
Massachusetts General HospitalBoston, MAHospital
Newton-wellesley HospitalNewton, MAHospital
Brigham And Women's HospitalBoston, MAHospital
Massachusetts Eye And Ear Infirmary -Boston, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Massachusetts General Physicians Organization Inc24663658203085

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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. Dr Leslie A Vensel allows following entities to bill medicare on her 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

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

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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. Dr Leslie A Vensel 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
Dr Leslie A Vensel, MD
Po Box 9142, Mass General Physician Organization,
Charlestown, MA 02129-9142

Ph: (781) 487-4350
Dr Leslie A Vensel, MD
40 2nd Ave, Suite 400,
Waltham, MA 02451-1132

Ph: (781) 487-4350

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Internal Medicine Doctors in Waltham, MA

Nancy Gracin, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 40 2nd Ave, Suite 520, Waltham, MA 02451
Phone: 781-487-6000    Fax: 781-497-2978
Wissam J Khoory, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 20 Hope Ave, Suite G03, Waltham, MA 02453
Phone: 781-893-4490    
Dr. Julie Pfeffer, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 355 Waverley Oaks Rd Ste 200, Waltham, MA 02452
Phone: 781-647-6920    
Marilyn Novich, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: Private Health Care Systems, 1100 Winter Street, Waltham, MA 02451
Phone: 781-895-7500    
Mary Paula Lutz, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 200 West Street, Parexel International, Waltham, MA 02154
Phone: 781-434-4562    
Dr. Allison Lloyd Mcdonough, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 52 2nd Ave, Suite 2000, Waltham, MA 02451
Phone: 781-487-4040    Fax: 781-487-2870
Melody L Craft, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 200 West St, Waltham, MA 02451
Phone: 781-434-5145    

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