William H Sierra, PA - Physician Assistant in West Islip, NY

William H Sierra, PA is a Physician Assistant based in West Islip, New York. William H Sierra is licensed to practice in New York (license number 002312) and his current practice location is 1000 Montauk Hwy, West Islip, New York. He can be reached at his office (for appointments etc.) via phone at (631) 376-3000.

NPI number for William H Sierra is 1992721229 and his current mailing address is Po Box 6010, Hauppauge, New York. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1992721229.

Contact Information

William H Sierra, PA
1000 Montauk Hwy,
West Islip, NY 11795-4927
(631) 376-3000
Not Available

Map and Direction




Provider's Profile

Full NameWilliam H Sierra
GenderMale
SpecialityPhysician Assistant
Location1000 Montauk Hwy, West Islip, New York
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1992721229
  • Provider Enumeration Date: 07/13/2006
  • Last Update Date: 05/29/2008

Medical Identifiers

Medical identifiers for William H Sierra such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992721229NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 002312 (New York)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. William H Sierra is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
William H Sierra, PA
Po Box 6010,
Hauppauge, NY 11788-9010

Ph: (631) 232-4000
William H Sierra, PA
1000 Montauk Hwy,
West Islip, NY 11795-4927

Ph: (631) 376-3000

Reviews and Comments


Physician Assistant Nurses in West Islip, NY

Mrs. Kristy Selvaggi, RPAC
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 1000 Montauk Highway, Good Samaritan Hospital, West Islip, NY 11795
Phone: 631-376-4444    
Joseph E Mirro,
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 518 Hunter Ave, West Islip, NY 11795
Phone: 631-278-9888    
Laurie Waters, PA
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 1000 Montauk Hwy, West Islip, NY 11795
Phone: 631-376-3000    
Michaela Lynn Lomelo,
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 500 Montauk Hwy, West Islip, NY 11795
Phone: 631-422-9100    
Aron Weinberg,
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Montauk Hwy, West Islip, NY 11795
Phone: 631-376-3000    
Nicole Hose, PA
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 125 Sunrise Hwy, West Islip, NY 11795
Phone: 516-346-5090    
Steven H Burg, RPA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 800 Montauk Hwy, West Islip, NY 11795
Phone: 631-893-3903    Fax: 631-893-3904

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.