Stuart Horowitz, DO - Medicare Family Practice in Massapequa, NY

Stuart Horowitz, DO is a medicare enrolled "Family Medicine" physician in Massapequa, New York. He went to Des Moines University Of Osteopathic Medicine And Health Sciences and graduated in 1977 and has 47 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Ronald C Fagan M. D. P.c.. and his current practice location is 99 Grand Ave, Massapequa, New York. You can reach out to his office (for appointments etc.) via phone at (516) 541-9700.

Stuart Horowitz is licensed to practice in New York (license number 134589) 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 1972661155.

Contact Information

Stuart Horowitz, DO
99 Grand Ave,
Massapequa, NY 11758-1203
(516) 541-9700
(516) 798-1086

Map and Direction




Physician's Profile

Full NameStuart Horowitz
GenderMale
SpecialityFamily Practice
Experience47 Years
Location99 Grand Ave, Massapequa, 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:
  • Stuart Horowitz attended and graduated from Des Moines University Of Osteopathic Medicine And Health Sciences in 1977
  NPI Data:
  • NPI Number: 1972661155
  • Provider Enumeration Date: 12/04/2006
  • Last Update Date: 05/16/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 3678524246
  • Enrollment ID: I20050201000949

Medical Identifiers

Medical identifiers for Stuart Horowitz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972661155NPI-NPPES
134589A73OtherHEALTH FIRST
5066OtherVYTRA
5431A1OtherBLUE CROSS BLUE SHIELD
4121374OtherAETNA
AP024OtherOXFORD
5596318OtherGHI
AA00617BOtherMDNY
201285536OtherEMPIRE
201285536OtherLOCAL 1199
201285536OtherMULTI
4C1580OtherPHS
0H380POtherHIP
201285536OtherHORIZON
315206MedicaidNY
201285536OtherMAGACARE
500563012OtherCIGNA
201285536OtherUNITED HEALTHCARE
3C7540OtherHEALTHNET

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 134589 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Catholic Home CareFarmingdale, NYHome health agency

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ronald C Fagan M. D. P.c..59916978234

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. Stuart Horowitz allows following entities to bill medicare on his behalf.
Entity NameRonald C Fagan M. D. P.c..
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023146198
PECOS PAC ID: 5991697823
Enrollment ID: O20050909000878

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. Stuart Horowitz 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
Stuart Horowitz, DO
99 Grand Ave,
Massapequa, NY 11758-1203

Ph: (516) 541-9700
Stuart Horowitz, DO
99 Grand Ave,
Massapequa, NY 11758-1203

Ph: (516) 541-9700

Reviews and Comments


Family Medicine Doctors in Massapequa, NY

Dr. Teresa Esposito, DO
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Medicare: Accepting Medicare Assignments
Practice Location: 848 Hicksville Rd, Massapequa, NY 11758
Phone: 516-731-3210    
Dr. John Robert Dimartino, MD
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Practice Location: 747 N Broadway, Massapequa, NY 11758
Phone: 516-795-5200    Fax: 516-795-3865
Dr. James W Atkinson, DO
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Medicare: Not Enrolled in Medicare
Practice Location: 9a Broadway, Massapequa, NY 11758
Phone: 516-797-1800    Fax: 516-541-2765
Carl Boris, D.O.
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Medicare: Medicare Enrolled
Practice Location: 99 Grand Ave, Massapequa, NY 11758
Phone: 516-541-9700    Fax: 516-798-1086
Dr. Marjorie J. Isdith, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 20 Hicksville Road, Massapequa, NY 11758
Phone: 516-795-5700    Fax: 516-795-5701
Dr. Adam M Carpentieri, DO
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Medicare: Accepting Medicare Assignments
Practice Location: 119 New York Avenue, Massapequa, NY 11758
Phone: 516-799-2555    Fax: 516-799-2595
Jill Sisselman, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 627 Broadway, Suite 1, Massapequa, NY 11758
Phone: 516-308-4040    Fax: 516-804-6386

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.