Geraldine Slean, - Medicare Ophthalmology in Union City, CA

Geraldine Slean, is a medicare enrolled "Ophthalmology" physician in Union City, California. She went to University Of California, San Francisco School Of Medicine and graduated in 2014 and has 10 years of diverse experience with area of expertise as Ophthalmology. She is a member of the group practice Sutter Valley Medical Foundation and her current practice location is 3553 Whipple Rd Bldg B, Union City, California. You can reach out to her office (for appointments etc.) via phone at (510) 675-2020.

Geraldine Slean is licensed to practice in California (license number A141033) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1598185662.

Contact Information

Geraldine Slean,
3553 Whipple Rd Bldg B,
Union City, CA 94587-1507
(510) 675-2020
Not Available

Map and Direction




Physician's Profile

Full NameGeraldine Slean
GenderFemale
SpecialityOphthalmology
Experience10 Years
Location3553 Whipple Rd Bldg B, Union City, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Geraldine Slean attended and graduated from University Of California, San Francisco School Of Medicine in 2014
  NPI Data:
  • NPI Number: 1598185662
  • Provider Enumeration Date: 04/16/2014
  • Last Update Date: 10/22/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9335474089
  • Enrollment ID: I20190717002238

Medical Identifiers

Medical identifiers for Geraldine Slean such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598185662NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology A141033 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sutter Medical Center, SacramentoSacramento, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sutter Valley Medical Foundation98300945151919

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. Geraldine Slean allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameSutter Valley Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669846986
PECOS PAC ID: 9830094515
Enrollment ID: O20090311000335

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. Geraldine Slean 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
Geraldine Slean,
110 Quintas Ln,
Moraga, CA 94556-1631

Ph: (908) 938-8849
Geraldine Slean,
3553 Whipple Rd Bldg B,
Union City, CA 94587-1507

Ph: (510) 675-2020

Reviews and Comments


Ophthalmology Doctors in Union City, CA

Catherine Michele Knox, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3553 Whipple Rd, Union City, CA 94587
Phone: 510-454-1000    
Jeffrey Mark Lehmer, M.D.
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3553 Whipple Rd, Union City, CA 94587
Phone: 510-454-1000    
James Michael Lahey, M.D.
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 3553 Whipple Rd, Union City, CA 94587
Phone: 510-454-1000    
Franklin Jeng, MD
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3553 Whipple Rd Bldg B1, Union City, CA 94587
Phone: 510-675-2020    
Michael Chin-wah Fang-yen, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3553 Whipple Rd, Union City, CA 94587
Phone: 510-454-1000    
Kristina Heidi Austin, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3553 Whipple Rd, Union City, CA 94587
Phone: 510-454-1000    
Kari Mcmorrow Eisley, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3553 Whipple Rd, Union City, CA 94587
Phone: 510-454-1000    Fax: 412-647-9607

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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