Dr William S Lim, MD - Medicare Ophthalmology in El Paso, TX

Dr William S Lim, MD is a medicare enrolled "Ophthalmology" physician in El Paso, Texas. He graduated from medical school in 1999 and has 25 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Southern California Permanente Medical Group and his current practice location is 5005 N Piedras St, Wbamc Ophthalmology Clinic, 2178, El Paso, Texas. You can reach out to his office (for appointments etc.) via phone at (915) 569-4432.

Dr William S Lim is licensed to practice in California (license number A99969) 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 1023107380.

Contact Information

Dr William S Lim, MD
5005 N Piedras St, Wbamc Ophthalmology Clinic, 2178,
El Paso, TX 79920-5001
(915) 569-4432
(915) 569-1233

Map and Direction




Physician's Profile

Full NameDr William S Lim
GenderMale
SpecialityOphthalmology
Experience25 Years
Location5005 N Piedras St, El Paso, Texas
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 William S Lim graduated from medical school in 1999
  NPI Data:
  • NPI Number: 1023107380
  • Provider Enumeration Date: 10/12/2006
  • Last Update Date: 12/01/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 5496833782
  • Enrollment ID: I20080428000415

Medical Identifiers

Medical identifiers for Dr William S Lim such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023107380NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology A99969 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation Hospital, RiversideRiverside, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southern California Permanente Medical Group60027291758172

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 William S Lim allows following entities to bill medicare on his behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316979834
PECOS PAC ID: 6002729175
Enrollment ID: O20040126000823

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 William S Lim 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 William S Lim, MD
5005 N Piedras St, Wbamc Ophthalmology Clinic, 2178,
El Paso, TX 79920-5001

Ph: (915) 569-4432
Dr William S Lim, MD
5005 N Piedras St, Wbamc Ophthalmology Clinic, 2178,
El Paso, TX 79920-5001

Ph: (915) 569-4432

Reviews and Comments


Ophthalmology Doctors in El Paso, TX

Dr. Daniel S. Washburn, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 8815 Dyer St Ste 130, El Paso, TX 79904
Phone: 915-757-3937    Fax: 915-757-3946
Dr. William Francis Davitt Iii, M.D.
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 8815 Dyer St, Suite 130, El Paso, TX 79904
Phone: 915-757-3937    Fax: 915-757-3946
James D Cole, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 1400 Common Dr, El Paso, TX 79936
Phone: 915-595-4375    Fax: 915-575-4460
Girvar Singh, M.D.
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 5001 N Piedras St, El Paso, TX 79930
Phone: 915-564-6116    Fax: 915-564-7940
Dr. Susan Lynne Parks,
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 5001 N. Piedras, El Paso, TX 79930
Phone: 915-564-6116    Fax: 915-564-7940
Robert Mclemore Maddox, M.D.
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 601 Sunland Park Dr, Building 2, El Paso, TX 79912
Phone: 915-881-8100    

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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.

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