Gregg Gerard Marella, MD - Medicare Internal Medicine in Mendham, NJ

Gregg Gerard Marella, MD is a medicare enrolled "Internal Medicine" physician in Mendham, New Jersey. He went to Pennsylvania State University College Of Medicine and graduated in 1993 and has 31 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 19 E Main St, Mendham, New Jersey. You can reach out to his office (for appointments etc.) via phone at (973) 543-6505.

Gregg Gerard Marella is licensed to practice in New Jersey (license number MA64502) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1922116326.

Contact Information

Gregg Gerard Marella, MD
19 E Main St,
Mendham, NJ 07945-1503
(973) 543-6505
(973) 543-2967

Map and Direction




Physician's Profile

Full NameGregg Gerard Marella
GenderMale
SpecialityInternal Medicine
Experience31 Years
Location19 E Main St, Mendham, New Jersey
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Gregg Gerard Marella attended and graduated from Pennsylvania State University College Of Medicine in 1993
  NPI Data:
  • NPI Number: 1922116326
  • Provider Enumeration Date: 08/26/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 0840215851
  • Enrollment ID: I20051010000248

Medical Identifiers

Medical identifiers for Gregg Gerard Marella such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922116326NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MA64502 (New Jersey)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Atlantic Home Care & HospiceMorristown, NJHome health agency
Morristown Medical CenterMorristown, NJHospital
Holly Manor CenterMendham, NJNursing home

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. Gregg Gerard Marella allows following entities to bill medicare on his behalf.
Entity NameMendham Medical Practice Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265917926
PECOS PAC ID: 8921345208
Enrollment ID: O20190124001016

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. Gregg Gerard Marella 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
Gregg Gerard Marella, MD
19 E Main St,
Mendham, NJ 07945-1503

Ph: (973) 543-6505
Gregg Gerard Marella, MD
19 E Main St,
Mendham, NJ 07945-1503

Ph: (973) 543-6505

Reviews and Comments


Internal Medicine Doctors in Mendham, NJ

Matthew Schaikewitz, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8 Tempe Wick Rd, Mendham, NJ 07945
Phone: 973-543-2288    
Christie J Prestifilippo, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 19 E Main St, Mendham, NJ 07945
Phone: 973-543-6505    Fax: 973-543-2967
Dr. Sandy A Furey Iii, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 8 Horizon Dr, Mendham, NJ 07945
Phone: 973-543-4220    
James Henry Wolf, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 19 E Main St, Mendham, NJ 07945
Phone: 973-543-6505    Fax: 973-543-2967
Daniel Robert Amoruso, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8 Tempe Wick Rd Ste 300, Mendham, NJ 07945
Phone: 973-543-2288    
Allison Carthan Connolly, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 19 E Main St, Mendham, NJ 07945
Phone: 973-543-6599    

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.