Dr Rebecca Sara Karp, MD - Medicare Hematology/oncology in Boston, MA

Dr Rebecca Sara Karp, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Boston, Massachusetts. She went to Icahn School Of Medicine At Mount Sinai and graduated in 2009 and has 15 years of diverse experience with area of expertise as Hematology/oncology. She is a member of the group practice Massachusetts General Physicians Organization Inc, The General Hospital Corporation and her current practice location is 330 Brookline Ave, Boston, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (617) 667-2100.

Dr Rebecca Sara Karp is licensed to practice in Massachusetts (license number 251249) 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 1265669659.

Contact Information

Dr Rebecca Sara Karp, MD
330 Brookline Ave,
Boston, MA 02215-5400
(617) 667-2100
(617) 975-5665

Map and Direction




Physician's Profile

Full NameDr Rebecca Sara Karp
GenderFemale
SpecialityHematology/oncology
Experience15 Years
Location330 Brookline Ave, Boston, 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 Rebecca Sara Karp attended and graduated from Icahn School Of Medicine At Mount Sinai in 2009
  NPI Data:
  • NPI Number: 1265669659
  • Provider Enumeration Date: 06/12/2009
  • Last Update Date: 04/25/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 5698922953
  • Enrollment ID: I20120822000250

Medical Identifiers

Medical identifiers for Dr Rebecca Sara Karp such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1265669659NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 251249 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Massachusetts General HospitalBoston, MAHospital
Brigham And Women's HospitalBoston, MAHospital
North Shore Medical Center -Salem, MAHospital
Newton-wellesley HospitalNewton, MAHospital
Wentworth-douglass HospitalDover, NHHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Massachusetts General Physicians Organization Inc24663658203084
The General Hospital Corporation65078038061058

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

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 Rebecca Sara Karp 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 Rebecca Sara Karp, MD
330 Brookline Ave,
Boston, MA 02215-5400

Ph: (617) 667-2100
Dr Rebecca Sara Karp, MD
330 Brookline Ave,
Boston, MA 02215-5400

Ph: (617) 667-2100

Reviews and Comments


Internal Medicine Doctors in Boston, MA

Kaitlyn My-tu Lam, MBBS
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-724-7738    
Kui Toh Gerard Leong, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 55 Fruit Street, Massachusetts General Hospital, Boston, MA 02114
Phone: 617-726-8862    
Ruma Rajbhandari,
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 75 Francis St, Boston, MA 02115
Phone: 617-525-6841    
Alaka Ray, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2066    
Meghan E Sise, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2862    
Aaron Dickstein, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 800 Washington St, Box 233, Boston, MA 02111
Phone: 617-636-5883    Fax: 617-636-9292
Dr. Felicia Elizabeth Patch, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 801 Massachusetts Ave, Crosstown 2, Boston, MA 02118
Phone: 617-414-4376    Fax: 617-414-4676

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.

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