Dr Clifford Marks, MD - Medicare Emergency Medicine in Boston, MA

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Dr Clifford Marks, MD is a medicare enrolled "Emergency Medicine" physician in Boston, Massachusetts. He graduated from medical school in 2018 and has 6 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc, Bid-milton Physician Associates Inc, Beth Israel Deaconess Medical Center Inc and his current practice location is 1 Deaconess Rd, Boston, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 754-2400.

Dr Clifford Marks is licensed to practice in Massachusetts (license number 291962) 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 1265936066.

Contact Information

Dr Clifford Marks, MD
1 Deaconess Rd,
Boston, MA 02115-6007
(617) 754-2400
Not Available

Map and Direction




Physician's Profile

Full NameDr Clifford Marks
GenderMale
SpecialityEmergency Medicine
Experience6 Years
Location1 Deaconess Rd, Boston, 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 Clifford Marks graduated from medical school in 2018
  NPI Data:
  • NPI Number: 1265936066
  • Provider Enumeration Date: 03/19/2018
  • Last Update Date: 03/09/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4082950159
  • Enrollment ID: I20220627003059

Medical Identifiers

Medical identifiers for Dr Clifford Marks such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1265936066NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 291962 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Beth Israel Deaconess Medical CenterBoston, MAHospital
Beth Israel Deaconess Hospital - NeedhamNeedham, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc44865671041337
Bid-milton Physician Associates Inc741637539943
Beth Israel Deaconess Medical Center Inc812393611976

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 Clifford Marks allows following entities to bill medicare on his behalf.
Entity NameHarvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316987993
PECOS PAC ID: 4486567104
Enrollment ID: O20040105000227
Entity NameAssociated Physicians Of Harvard Medical Faculty Physicians At Beth Is
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952358533
PECOS PAC ID: 6305749987
Enrollment ID: O20040130000354
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 NameAssociated Physicians Of Harvard Medical Faculty Physicians At Beth Is
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952358533
PECOS PAC ID: 6305749987
Enrollment ID: O20130606000720
Entity NameBid-milton Physician Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164060778
PECOS PAC ID: 7416375399
Enrollment ID: O20200909000678
Entity NameHarvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538774443
PECOS PAC ID: 4486567104
Enrollment ID: O20201029002622

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 Clifford Marks 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 Clifford Marks, MD
1 Deaconess Rd,
Boston, MA 02115-6007

Ph: () -		Dr Clifford Marks, MD
1 Deaconess Rd,
Boston, MA 02115-6007

Ph: (617) 754-2400

Reviews and Comments


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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.