Dr Ronald N Gaster, MD - Medicare Ophthalmology in Long Beach, CA

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Dr Ronald N Gaster, MD is a medicare enrolled "Ophthalmology" physician in Long Beach, California. He went to University Of California, Geffen School Of Medicine and graduated in 1973 and has 52 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Orange Coast Eye Center Inc and his current practice location is 5901 E 7th St, Long Beach, California. You can reach out to his office (for appointments etc.) via phone at (562) 826-8000.

Dr Ronald N Gaster is licensed to practice in California (license number A026039) 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 1306940325.

Contact Information

Dr Ronald N Gaster, MD
5901 E 7th St,
Long Beach, CA 90822-5201
(562) 826-8000
(562) 826-5788

Map and Direction




Physician's Profile

Full NameDr Ronald N Gaster
GenderMale
SpecialityOphthalmology
Experience52 Years
Location5901 E 7th St, Long Beach, California
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:
  • Dr Ronald N Gaster attended and graduated from University Of California, Geffen School Of Medicine in 1973
  NPI Data:
  • NPI Number: 1306940325
  • Provider Enumeration Date: 09/11/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8729110531
  • Enrollment ID: I20100714000556

Medical Identifiers

Medical identifiers for Dr Ronald N Gaster such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1306940325NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology A026039 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Orange Coast Eye Center Inc13554389385

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 Ronald N Gaster allows following entities to bill medicare on his behalf.
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487602579
PECOS PAC ID: 7315841434
Enrollment ID: O20031120000945
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871541953
PECOS PAC ID: 9830094275
Enrollment ID: O20031126000755
Entity NameClarity Eye Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033122957
PECOS PAC ID: 0446287361
Enrollment ID: O20050818001039
Entity NameOrange Coast Eye Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962693531
PECOS PAC ID: 1355438938
Enrollment ID: O20080617000434
Entity NameRonald N Gaster Md Inc A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225706724
PECOS PAC ID: 8426446642
Enrollment ID: O20211020002778

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 Ronald N Gaster 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 Ronald N Gaster, MD
5901 E 7th St,
Long Beach, CA 90822-5201

Ph: (562) 826-8000		Dr Ronald N Gaster, MD
5901 E 7th St,
Long Beach, CA 90822-5201

Ph: (562) 826-8000

Reviews and Comments


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Phone: 562-988-8668    Fax: 562-988-8660

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.