Dr Mark Greaves, MD - Medicare Gastroenterology in Hillsborough, NJ

Dr Mark Greaves, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Hillsborough, New Jersey. He went to Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University and graduated in 2002 and has 22 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Digestive Healthcare Center Pa and his current practice location is 511 Courtyard Dr Bldg 500, Hillsborough, New Jersey. You can reach out to his office (for appointments etc.) via phone at (908) 218-9222.

Dr Mark Greaves is licensed to practice in New Jersey (license number 25MA08345700) 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 1518139914.

Contact Information

Dr Mark Greaves, MD
511 Courtyard Dr Bldg 500,
Hillsborough, NJ 08844-4255
(908) 218-9222
(908) 218-9818

Map and Direction




Physician's Profile

Full NameDr Mark Greaves
GenderMale
SpecialityGastroenterology
Experience22 Years
Location511 Courtyard Dr Bldg 500, Hillsborough, New Jersey
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 Mark Greaves attended and graduated from Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University in 2002
  NPI Data:
  • NPI Number: 1518139914
  • Provider Enumeration Date: 03/26/2008
  • Last Update Date: 05/09/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 8628145927
  • Enrollment ID: I20080929000706

Medical Identifiers

Medical identifiers for Dr Mark Greaves such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1518139914NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 25MA08345700 (New Jersey)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Robert Wood Johnson University Hospital - SomersetSomerville, NJHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Digestive Healthcare Center Pa822400749713

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 Mark Greaves allows following entities to bill medicare on his behalf.
Entity NameDigestive Healthcare Center Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255318085
PECOS PAC ID: 8224007497
Enrollment ID: O20040927000032

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 Mark Greaves 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 Mark Greaves, MD
511 Courtyard Dr Bldg 500,
Hillsborough, NJ 08844-4255

Ph: (908) 218-9222
Dr Mark Greaves, MD
511 Courtyard Dr Bldg 500,
Hillsborough, NJ 08844-4255

Ph: (908) 218-9222

Reviews and Comments


Internal Medicine Doctors in Hillsborough, NJ

Dr. Ronald G Nahass, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 105 Raider Blvd, Suite 101, Hillsborough, NJ 08844
Phone: 908-281-0221    Fax: 908-281-0890
Dr. Yusri Ali Elsayed, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 7 Wilson Cv, Hillsborough, NJ 08844
Phone: 908-874-3982    Fax: 732-909-2046
Dr. Navtika R Desai, DO
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 105 Raider Blvd, Suite 200, Hillsborough, NJ 08844
Phone: 908-829-4244    Fax: 908-382-3280
Dr. Eric C. Manning, M.D., PHD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 719 Us Highway 206, Suite 100, Hillsborough, NJ 08844
Phone: 908-904-9055    Fax: 908-904-9069
Dr. Lin Wu Chou, M.D.
Gastroenterology
Medicare: May Accept Medicare Assignments
Practice Location: 311 Omni Dr, Hillsborough, NJ 08844
Phone: 908-281-0632    Fax: 908-281-9848
Roger Haas, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 331 Route 206 Ste 2b, Hillsborough, NJ 08844
Phone: 908-308-8016    Fax: 732-463-6065
Paige Kylie Seavey, PA-C
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 101 Omni Dr, Hillsborough, NJ 08844
Phone: 732-354-4162    

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).

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