Dr Sarah Elizabeth Shannahan, MD - Medicare Gastroenterology in Boston, MA

  1. Home
  2. Internal Medicine
  3. MA
  4. Boston
Dr Sarah Elizabeth Shannahan, MD is a medicare enrolled "Internal Medicine" physician in Boston, Massachusetts. She went to University Of Massachusetts Medical School and graduated in 2014 and has 10 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice Brigham And Womens Physicians Organization Inc, Gbgastro Llc, Greater Boston Gastroenterology 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) 667-7000.

Dr Sarah Elizabeth Shannahan is licensed to practice in Massachusetts (license number 259668) 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 1528470143.

Contact Information

Dr Sarah Elizabeth Shannahan, MD
330 Brookline Ave,
Boston, MA 02215-5400
(617) 667-7000
Not Available

Map and Direction




Physician's Profile

Full NameDr Sarah Elizabeth Shannahan
GenderFemale
SpecialityGastroenterology
Experience10 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 Sarah Elizabeth Shannahan attended and graduated from University Of Massachusetts Medical School in 2014
  NPI Data:
  • NPI Number: 1528470143
  • Provider Enumeration Date: 06/02/2014
  • Last Update Date: 06/02/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 1951618024
  • Enrollment ID: I20180814001859

Medical Identifiers

Medical identifiers for Dr Sarah Elizabeth Shannahan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528470143NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 259668 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Metrowest Medical CenterFramingham, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Brigham And Womens Physicians Organization Inc38704059882511
Gbgastro Llc458790928821
Greater Boston Gastroenterology599178980221

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 Sarah Elizabeth Shannahan allows following entities to bill medicare on her behalf.
Entity NameHarvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194765438
PECOS PAC ID: 4486567104
Enrollment ID: O20031204000918
Entity NameGreater Boston Gastroenterology
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164498796
PECOS PAC ID: 5991789802
Enrollment ID: O20040617000608
Entity NameBeth Israel Deaconess Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548202641
PECOS PAC ID: 8123936119
Enrollment ID: O20041001000827
Entity NameBrigham & Womens Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033535497
PECOS PAC ID: 3870405988
Enrollment ID: O20150107001260
Entity NameAssociated Physicians Of Harvard Medical Faculty Physicians At Beth Is
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497151773
PECOS PAC ID: 6305749987
Enrollment ID: O20150211001099
Entity NameGbgastro Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033693023
PECOS PAC ID: 4587909288
Enrollment ID: O20181228000791

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 Sarah Elizabeth Shannahan 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 Sarah Elizabeth Shannahan, MD
330 Brookline Ave,
Boston, MA 02215-5400

Ph: (617) 667-7000		Dr Sarah Elizabeth Shannahan, MD
330 Brookline Ave,
Boston, MA 02215-5400

Ph: (617) 667-7000

Reviews and Comments


Internal Medicine Doctors in Boston, MA

Kaitlyn My-tu Lam, MBBS
Internal Medicine
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.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 55 Fruit Street, Massachusetts General Hospital, Boston, MA 02114
Phone: 617-726-8862    
Ruma Rajbhandari,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 75 Francis St, Boston, MA 02115
Phone: 617-525-6841    
Alaka Ray, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2066    
Meghan E Sise, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2862    
Aaron Dickstein, M.D.
Internal Medicine
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
Internal Medicine
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.

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.