Sean Gretz, OD - Medicare Optometrist in Easton, MD

Sean Gretz, OD is a medicare enrolled "Optometrist" provider in Easton, Maryland. He went to Pennsylvania College Of Optometry and graduated in 2018 and has 6 years of diverse experience with area of expertise as Optometry. He is a member of the group practice Halpern Medical Services Llc and his current practice location is 210 Marlboro Ave Ste 31, Easton, Maryland. You can reach out to his office (for appointments etc.) via phone at (410) 822-3937.

Sean Gretz is licensed to practice in Maryland (license number TA3006) 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 1720565641.

Contact Information

Sean Gretz, OD
210 Marlboro Ave Ste 31,
Easton, MD 21601-2767
(410) 822-3937
(410) 822-2652

Map and Direction




Healthcare Provider's Profile

Full NameSean Gretz
GenderMale
SpecialityOptometry
Experience6 Years
Location210 Marlboro Ave Ste 31, Easton, Maryland
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:
  • Sean Gretz attended and graduated from Pennsylvania College Of Optometry in 2018
  NPI Data:
  • NPI Number: 1720565641
  • Provider Enumeration Date: 07/24/2018
  • Last Update Date: 06/27/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0143578260
  • Enrollment ID: I20200309000076

Medical Identifiers

Medical identifiers for Sean Gretz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1720565641NPI-NPPES
OEG003439OtherPALICENSE
I3-0001417OtherDETHERAPEUTIC OPTOMETRY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist OEG003439 (Pennsylvania)Secondary
152W00000XOptometrist I3-0001417 (Delaware)Secondary
152W00000XOptometrist TA3006 (Maryland)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Halpern Medical Services Llc79119349227

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. Sean Gretz allows following entities to bill medicare on his behalf.
Provider NameSimon Eye Associates Pa
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1205871506
PECOS PAC ID: 4082684089
Enrollment ID: O20040728000237
Provider NameHalpern Medical Services Llc
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1346430360
PECOS PAC ID: 7911934922
Enrollment ID: O20050721000355

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. Sean Gretz 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
Sean Gretz, OD
8614 Westwood Center Dr Fl 9,
Vienna, VA 22182-2442

Ph: (703) 847-8899
Sean Gretz, OD
210 Marlboro Ave Ste 31,
Easton, MD 21601-2767

Ph: (410) 822-3937

Reviews and Comments


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Phone: 410-822-3937    Fax: 410-822-2652

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.