Dr Erik J Reiersen, MD - Medicare Anesthesiology in West Islip, NY

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Dr Erik J Reiersen, MD is a medicare enrolled "Anesthesiology" physician in West Islip, New York. His current practice location is 471 Montauk Hwy, West Islip, New York. You can reach out to his office (for appointments etc.) via phone at (631) 849-1050.

Dr Erik J Reiersen is licensed to practice in New York (license number 213746-1) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1740348531.

Contact Information

Dr Erik J Reiersen, MD
471 Montauk Hwy,
West Islip, NY 11795-4414
(631) 849-1050
(631) 849-1052

Map and Direction




Physician's Profile

Full NameDr Erik J Reiersen
GenderMale
SpecialityAnesthesiology
Location471 Montauk Hwy, 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: 1740348531
  • Provider Enumeration Date: 12/05/2006
  • Last Update Date: 12/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2466583877
  • Enrollment ID: I20100629000675

Medical Identifiers

Medical identifiers for Dr Erik J Reiersen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1740348531NPI-NPPES
01962298MedicaidNY
ER03209N10OtherNYBLUE CROSS BLUE SHIELD
213746-1 1WOtherNYWORKERS COMPENSATION

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 213746-1 (New York)Primary

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 Erik J Reiersen allows following entities to bill medicare on his behalf.
Entity NameLong Island Gastroenterology Group Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194768366
PECOS PAC ID: 8022909035
Enrollment ID: O20040322000138
Entity NameSri Gastroenterology Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356606743
PECOS PAC ID: 7315195237
Enrollment ID: O20120919000297
Entity NameSuffolk Anesthesia Services Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871869305
PECOS PAC ID: 2567609464
Enrollment ID: O20130514000209
Entity NameStar Suites Llc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1023588266
PECOS PAC ID: 7315284551
Enrollment ID: O20190128000196

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 Erik J Reiersen 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 Erik J Reiersen, MD
217 Cook St,
Huntington Station, NY 11746-3503

Ph: (516) 729-4108		Dr Erik J Reiersen, MD
471 Montauk Hwy,
West Islip, NY 11795-4414

Ph: (631) 849-1050

Reviews and Comments


Anesthesiology Doctors in West Islip, NY

Terence James Omalley, MD
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Dr. Claude Simon Gerstenhaber, MD
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Roxana Teodora Sacarin, MD
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Dr. Peter A Boulukos, M.D.
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Eric Fanaee, MD
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Rodolfo M Domingo, MD
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Phone: 631-376-4088    
Osborne D Williams, MD
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Practice Location: 1000 Montauk Highway, Good Smaritan Hospital Medical Center, West Islip, NY 11795
Phone: 631-376-4088    Fax: 631-376-4539

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.