Dr Joseph Martin Litwak, MD - Medicare Internal Medicine in Oak Bluffs, MA

Dr Joseph Martin Litwak, MD is a medicare enrolled "Hospitalist" physician in Oak Bluffs, Massachusetts. He graduated from medical school in 1992 and has 32 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Valley Regional Hospital Inc and his current practice location is 1 Hospital Rd, Oak Bluffs, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (603) 502-4144.

Dr Joseph Martin Litwak is licensed to practice in New Hampshire (license number 14515) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1396792958.

Contact Information

Dr Joseph Martin Litwak, MD
1 Hospital Rd,
Oak Bluffs, MA 02557-1406
(603) 502-4144
(413) 200-3251

Map and Direction




Physician's Profile

Full NameDr Joseph Martin Litwak
GenderMale
SpecialityInternal Medicine
Experience32 Years
Location1 Hospital Rd, Oak Bluffs, Massachusetts
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Joseph Martin Litwak graduated from medical school in 1992
  NPI Data:
  • NPI Number: 1396792958
  • Provider Enumeration Date: 05/28/2006
  • Last Update Date: 11/23/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 0648367722
  • Enrollment ID: I20090915000479

Medical Identifiers

Medical identifiers for Dr Joseph Martin Litwak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396792958NPI-NPPES
30208808MedicaidNH
891118NMedicaidNC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 9700642 (North Carolina)Secondary
208M00000XHospitalist 14515 (New Hampshire)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Valley Regional HospitalClaremont, NHHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Valley Regional Hospital Inc579968328022

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 Joseph Martin Litwak allows following entities to bill medicare on his behalf.
Entity NameValley Regional Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366687683
PECOS PAC ID: 5799683280
Enrollment ID: O20031222000429

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 Joseph Martin Litwak 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 Joseph Martin Litwak, MD
Po Box 655,
Exeter, NH 03833

Ph: () -
Dr Joseph Martin Litwak, MD
1 Hospital Rd,
Oak Bluffs, MA 02557-1406

Ph: (603) 502-4144

Reviews and Comments


Hospitalist Doctors in Oak Bluffs, MA


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.