Dr Mark J Jagust, MD - Medicare Family Practice in Lake Grove, NY

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Dr Mark J Jagust, MD is a medicare enrolled "Family Medicine" physician in Lake Grove, New York. He graduated from medical school in 1986 and has 40 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice North Shore Hematology Oncology Associates Pc and his current practice location is 2835 Middle Country Rd, Lake Grove, New York. You can reach out to his office (for appointments etc.) via phone at (631) 467-3564.

Dr Mark J Jagust is licensed to practice in New York (license number 178630) 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 1467493494.

Contact Information

Dr Mark J Jagust, MD
2835 Middle Country Rd,
Lake Grove, NY 11755-2105
(631) 467-3564
(631) 471-2236

Map and Direction




Physician's Profile

Full NameDr Mark J Jagust
GenderMale
SpecialityFamily Practice
Experience40 Years
Location2835 Middle Country Rd, Lake Grove, New York
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 J Jagust graduated from medical school in 1986
  NPI Data:
  • NPI Number: 1467493494
  • Provider Enumeration Date: 06/09/2006
  • Last Update Date: 08/10/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 9931385895
  • Enrollment ID: I20110511000267

Medical Identifiers

Medical identifiers for Dr Mark J Jagust such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467493494NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 178630 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Catholic Home CareFarmingdale, NYHome health agency
Kindred At Home (hauppauge)Hauppauge, NYHome health agency

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Shore Hematology Oncology Associates Pc1456243641411

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 J Jagust allows following entities to bill medicare on his behalf.
Entity NameNorth Shore Hematology Oncology Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396794574
PECOS PAC ID: 1456243641
Enrollment ID: O20040324001766

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 J Jagust 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 J Jagust, MD
2835 Middle Country Rd,
Lake Grove, NY 11755-2105

Ph: (631) 467-3564		Dr Mark J Jagust, MD
2835 Middle Country Rd,
Lake Grove, NY 11755-2105

Ph: (631) 467-3564

Reviews and Comments


Family Medicine Doctors in Lake Grove, NY

Ghazal Sinha, M.D
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4 Smith Haven Mall # 202, Lake Grove, NY 11755
Phone: 631-444-5858    Fax: 631-444-1899
Dr. Jake A Hunter, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4 Smith Haven Mall Ste 202, Lake Grove, NY 11755
Phone: 631-444-5858    Fax: 631-444-1899
Kamalpreet Buttar, M.D.
Family Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 4 Smith Haven Mall Ste 202, Lake Grove, NY 11755
Phone: 631-444-7947    Fax: 631-444-7447

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.