Matthew D Karl, MD - Medicare Ophthalmology in East Setauket, NY

Matthew D Karl, MD is a medicare enrolled "Ophthalmology - Retina Specialist" physician in East Setauket, New York. He went to State University Of New York Downstate Medical Center and graduated in 2015 and has 9 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Sight Medical Doctors Pllc and his current practice location is 33 Research Way Ste 13, East Setauket, New York. You can reach out to his office (for appointments etc.) via phone at (631) 444-0650.

Matthew D Karl is licensed to practice in New York (license number 291790) 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 1154716959.

Contact Information

Matthew D Karl, MD
33 Research Way Ste 13,
East Setauket, NY 11733-3489
(631) 444-0650
(614) 293-4719

Map and Direction




Physician's Profile

Full NameMatthew D Karl
GenderMale
SpecialityOphthalmology
Experience9 Years
Location33 Research Way Ste 13, East Setauket, 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:
  • Matthew D Karl attended and graduated from State University Of New York Downstate Medical Center in 2015
  NPI Data:
  • NPI Number: 1154716959
  • Provider Enumeration Date: 03/30/2015
  • Last Update Date: 01/04/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8224375357
  • Enrollment ID: I20220817001060

Medical Identifiers

Medical identifiers for Matthew D Karl such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154716959NPI-NPPES
0359260MedicaidOH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 35135581 (Ohio)Secondary
207WX0107XOphthalmology - Retina Specialist 35135581 (Ohio)Secondary
207WX0107XOphthalmology - Retina Specialist 291790 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
North Shore University HospitalManhasset, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sight Medical Doctors Pllc599193517397

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. Matthew D Karl allows following entities to bill medicare on his behalf.
Entity NameSight Medical Doctors Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487077483
PECOS PAC ID: 5991935173
Enrollment ID: O20140310000579

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. Matthew D Karl 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
Matthew D Karl, MD
33 Research Way Ste 13,
East Setauket, NY 11733-3489

Ph: (631) 444-0650
Matthew D Karl, MD
33 Research Way Ste 13,
East Setauket, NY 11733-3489

Ph: (631) 444-0650

Reviews and Comments


Ophthalmology Doctors in East Setauket, NY

Dr. Gideon Schneck, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 33 Research Way, East Setauket, NY 11733
Phone: 631-444-4090    
Dr. Stuart Fourman, M.D.
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 33 Research Way, East Setauket, NY 11733
Phone: 631-444-4090    
Nariman Boyle, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 33 Research Way, Suite 13, East Setauket, NY 11733
Phone: 631-444-4092    
Dr. Jack Oats, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 4 Technology Dr, Suite 150, East Setauket, NY 11733
Phone: 631-941-1400    Fax: 631-941-1476
Dr. John R Wittpenn, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 4 Technology Dr, Suite 150, East Setauket, NY 11733
Phone: 631-941-1400    Fax: 631-941-1476
Dr. Alexander Llinas, M.D., PH.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3400 Nesconset Hwy, Suite 107, East Setauket, NY 11733
Phone: 631-751-2020    

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).

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