David F Ryser, MD - Medicare Ophthalmology in Warsaw, IN

David F Ryser, MD is a medicare enrolled "Ophthalmology" physician in Warsaw, Indiana. He went to Indiana University School Of Medicine and graduated in 1998 and has 26 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Northwest Indiana Eye And Laser Center Pc and his current practice location is 2251 Dubois Dr, Warsaw, Indiana. You can reach out to his office (for appointments etc.) via phone at (574) 269-2777.

David F Ryser is licensed to practice in Indiana (license number 01051033A) 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 1528061363.

Contact Information

David F Ryser, MD
2251 Dubois Dr,
Warsaw, IN 46580-3212
(574) 269-2777
(574) 371-4697

Map and Direction




Physician's Profile

Full NameDavid F Ryser
GenderMale
SpecialityOphthalmology
Experience26 Years
Location2251 Dubois Dr, Warsaw, Indiana
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:
  • David F Ryser attended and graduated from Indiana University School Of Medicine in 1998
  NPI Data:
  • NPI Number: 1528061363
  • Provider Enumeration Date: 05/24/2005
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 6507963329
  • Enrollment ID: I20100305000665

Medical Identifiers

Medical identifiers for David F Ryser such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528061363NPI-NPPES
200333110MedicaidIN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 01051033A (Indiana)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northwest Indiana Eye And Laser Center Pc51937013406

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. David F Ryser allows following entities to bill medicare on his behalf.
Entity NameNorthwest Indiana Eye & Laser Center Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336212117
PECOS PAC ID: 5193701340
Enrollment ID: O20060111000618
Entity NameGrossnickle Eye Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265436125
PECOS PAC ID: 7810897758
Enrollment ID: O20071227000295

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. David F Ryser 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
David F Ryser, MD
2251 Dubois Dr,
Warsaw, IN 46580-3212

Ph: (574) 269-2777
David F Ryser, MD
2251 Dubois Dr,
Warsaw, IN 46580-3212

Ph: (574) 269-2777

Reviews and Comments


Ophthalmology Doctors in Warsaw, IN

Matthew C Ralstin, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 2251 Dubois Dr, Warsaw, IN 46580
Phone: 574-269-2777    
Dr. Allison Anne Pernic, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 2251 Dubois Dr, Warsaw, IN 46580
Phone: 574-269-2777    Fax: 574-371-4697
Bruce P Grossnickle, M.D.
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 2251 Dubois Dr, Warsaw, IN 46580
Phone: 574-269-2777    Fax: 574-371-4697
Ann K Buikema Wiarda, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 2251 Dubois Dr, Warsaw, IN 46580
Phone: 574-269-2777    Fax: 574-371-4697
Christopher D Knight, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 2251 Dubois Dr, Warsaw, IN 46580
Phone: 574-269-2777    Fax: 574-371-4697

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.