Mark R Gershenbaum, DO - Medicare in Freehold, NJ

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Mark R Gershenbaum, DO is a medicare enrolled "Hospitalist" physician in Freehold, New Jersey. His current practice location is 901 West Main St, Freehold, New Jersey. You can reach out to his office (for appointments etc.) via phone at (732) 294-2666.

Mark R Gershenbaum is licensed to practice in New Jersey (license number 25MB04672200) 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 1982665782.

Contact Information

Mark R Gershenbaum, DO
901 West Main St,
Freehold, NJ 07728
(732) 294-2666
(732) 431-8267

Map and Direction




Physician's Profile

Full NameMark R Gershenbaum
GenderMale
Speciality
Experience Years
Location901 West Main St, Freehold, 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:
  • Mark R Gershenbaum attended and graduated from in
  NPI Data:
  • NPI Number: 1982665782
  • Provider Enumeration Date: 03/31/2006
  • Last Update Date: 09/11/2025
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Mark R Gershenbaum such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1982665782NPI-NPPES
5453101MedicaidNJ
P00153530OtherRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 25MB04672200 (New Jersey)Secondary
208M00000XHospitalist 25MB04672200 (New Jersey)Primary

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. Mark R Gershenbaum 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
Mark R Gershenbaum, DO
Po Box 13700-1901,
Philadelphia, PA 19191-1901

Ph: (800) 777-2455		Mark R Gershenbaum, DO
901 West Main St,
Freehold, NJ 07728

Ph: (732) 294-2666

Reviews and Comments


Hospitalist Doctors in Freehold, NJ

Aya Marachi, M.D.
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 901 W Main St, Freehold, NJ 07728
Phone: 856-686-4371    
Ryan Roshan Narain, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 597 Park Ave Ste B, Freehold, NJ 07728
Phone: 732-294-2540    Fax: 732-409-2621
Ali Choudhry, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 901 W Main St, Freehold, NJ 07728
Phone: 732-294-2716    Fax: 732-431-2561

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.