Dr Hillary Diamond, MD - Medicare Internal Medicine in Northport, NY

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Dr Hillary Diamond, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Northport, New York. She went to State University Of New York At Stony Brook, School Of Medicine and graduated in 1992 and has 32 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Advantagecare Physicians Pc and her current practice location is 99 Sea Cove Rd, Northport, New York. You can reach out to her office (for appointments etc.) via phone at (631) 300-0585.

Dr Hillary Diamond is licensed to practice in New York (license number 196450) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1902967011.

Contact Information

Dr Hillary Diamond, MD
99 Sea Cove Rd,
Northport, NY 11768-1850
(631) 300-0585
(308) 888-8554

Map and Direction




Physician's Profile

Full NameDr Hillary Diamond
GenderFemale
SpecialityInternal Medicine
Experience32 Years
Location99 Sea Cove Rd, Northport, New York
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Hillary Diamond attended and graduated from State University Of New York At Stony Brook, School Of Medicine in 1992
  NPI Data:
  • NPI Number: 1902967011
  • Provider Enumeration Date: 12/12/2006
  • Last Update Date: 06/01/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 1052362639
  • Enrollment ID: I20050201001009

Medical Identifiers

Medical identifiers for Dr Hillary Diamond such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902967011NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 196450 (New York)Secondary
207RG0300XInternal Medicine - Geriatric Medicine 196450 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Advantagecare Physicians Pc2365735008321

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 Hillary Diamond allows following entities to bill medicare on her behalf.
Entity NameSt. Johnland Nursing Center, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336219658
PECOS PAC ID: 9234028929
Enrollment ID: O20040311000863
Entity NameSouth Nassau Communities Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922079094
PECOS PAC ID: 5092607846
Enrollment ID: O20040326000373
Entity NameEssen Medical Associates, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366418709
PECOS PAC ID: 1759353501
Enrollment ID: O20040811000885
Entity NameHouse Call Medical Services Of New York Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851345946
PECOS PAC ID: 2264517754
Enrollment ID: O20080307000427
Entity NameDigestive Disease Care, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184871774
PECOS PAC ID: 7113093071
Enrollment ID: O20080829000434
Entity NameCity Medical Of Upper East Side Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801277629
PECOS PAC ID: 0648465039
Enrollment ID: O20101111000052
Entity NameBronx Medical Practice Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356726087
PECOS PAC ID: 9739496100
Enrollment ID: O20150917000004
Entity NameMedical Director Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871955807
PECOS PAC ID: 0042501116
Enrollment ID: O20160621000218
Entity NameAdvantagecare Physicians Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336578772
PECOS PAC ID: 2365735008
Enrollment ID: O20160719000446

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 Hillary Diamond 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 Hillary Diamond, MD
99 Sea Cove Rd,
Northport, NY 11768-1850

Ph: (631) 300-0585		Dr Hillary Diamond, MD
99 Sea Cove Rd,
Northport, NY 11768-1850

Ph: (631) 300-0585

Reviews and Comments


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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.