Dr Mary J Bilder, MD - Medicare Pediatrics in West Islip, NY

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Dr Mary J Bilder, MD is a medicare enrolled "Pediatrics - Adolescent Medicine" physician in West Islip, New York. Her current practice location is 239 Higbie Ln, West Islip, New York. You can reach out to her office (for appointments etc.) via phone at (631) 376-6000.

Dr Mary J Bilder is licensed to practice in New York (license number 106843-1) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1205051836.

Contact Information

Dr Mary J Bilder, MD
239 Higbie Ln,
West Islip, NY 11795-2825
(631) 376-6000
(631) 376-6031

Map and Direction




Physician's Profile

Full NameDr Mary J Bilder
GenderFemale
SpecialityPediatrics - Adolescent Medicine
Location239 Higbie Ln, West Islip, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1205051836
  • Provider Enumeration Date: 04/17/2007
  • Last Update Date: 04/15/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 3072570217
  • Enrollment ID: I20200710000306

Medical Identifiers

Medical identifiers for Dr Mary J Bilder such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205051836NPI-NPPES
0006449390004MedicaidPA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080A0000XPediatrics - Adolescent Medicine 106843-1 (New York)Primary
2080A0000XPediatrics - Adolescent Medicine MD014147E (Pennsylvania)Secondary

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 Mary J Bilder allows following entities to bill medicare on her behalf.
Entity NameProhealth Care Associates Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275596280
PECOS PAC ID: 4486544186
Enrollment ID: O20040317000468
Entity NameOptum Urgent Care Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285975797
PECOS PAC ID: 8628299518
Enrollment ID: O20141017000598

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 Mary J Bilder 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 Mary J Bilder, MD
180 N Herman Ave,
Bethpage, NY 11714-4410

Ph: (570) 439-1856		Dr Mary J Bilder, MD
239 Higbie Ln,
West Islip, NY 11795-2825

Ph: (631) 376-6000

Reviews and Comments


Pediatrics Doctors in West Islip, NY

Desiree Lariosa Catalan, D.O.
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Phone: 631-376-4161    
Dr. Kolathu A Mathew, M.D.
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Phone: 631-669-2900    Fax: 631-669-2547
Dr. Eldose Cherian George, M.D
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Phone: 631-669-2900    
Timothy George, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 239 Higbie Ln, West Islip, NY 11795
Phone: 631-376-6000    Fax: 631-376-6031
Reethamma Daniel, MD
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Medicare: Medicare Enrolled
Practice Location: 1000 Montauk Hwy, West Islip, NY 11795
Phone: 631-376-3000    

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.