Dr Ralph Warner Clark, MD - Medicare Preventive Medicine in Loma Linda, CA

Dr Ralph Warner Clark, MD is a medicare enrolled "Preventive Medicine - Addiction Medicine" physician in Loma Linda, California. His current practice location is 11201 Benton St, 116a/main, Loma Linda, California. You can reach out to his office (for appointments etc.) via phone at (909) 825-7084.

Dr Ralph Warner Clark is licensed to practice in California (license number A111705) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1336317239.

Contact Information

Dr Ralph Warner Clark, MD
11201 Benton St, 116a/main,
Loma Linda, CA 92357-1000
(909) 825-7084
(909) 422-3168

Map and Direction




Physician's Profile

Full NameDr Ralph Warner Clark
GenderMale
SpecialityPreventive Medicine - Addiction Medicine
Location11201 Benton St, Loma Linda, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1336317239
  • Provider Enumeration Date: 02/13/2008
  • Last Update Date: 07/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1759702806
  • Enrollment ID: I20200528001920

Medical Identifiers

Medical identifiers for Dr Ralph Warner Clark such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336317239NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2083P0901XPreventive Medicine - Public Health & General Preventive Medicine A111705 (California)Secondary
2083A0300XPreventive Medicine - Addiction Medicine A111705 (California)Primary

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 Ralph Warner Clark allows following entities to bill medicare on his behalf.
Entity NameFaculty Physicians And Surgeons Of Llusm
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205009917
PECOS PAC ID: 1153227814
Enrollment ID: O20031211000981

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 Ralph Warner Clark 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 Ralph Warner Clark, MD
11201 Benton St,
Loma Linda, CA 92357-1000

Ph: (909) 825-7084
Dr Ralph Warner Clark, MD
11201 Benton St, 116a/main,
Loma Linda, CA 92357-1000

Ph: (909) 825-7084

Reviews and Comments


Preventive Medicine Doctors in Loma Linda, CA

Karen Rachel Studer, M.D.
Preventive Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 11234 Anderson Street, Graduate Medical Education Office Cp 21005, Loma Linda, CA 92354
Phone: 909-558-4000    
Serena Tonstad,
Preventive Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 24785 Stewart St, Evans Hall, Room 111, Loma Linda, CA 92350
Phone: 909-558-4741    Fax: 909-558-0471
T Allan Darnell, M.D.
Preventive Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 25455 Barton Rd, Ste.106a, Loma Linda, CA 92354
Phone: 909-558-6222    
Dr. Rebecca Sueyoung Chung, M.D.
Preventive Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 24785 Stewart St Evans Hl Ste 204, Loma Linda, CA 92350
Phone: 909-651-5809    
Dr. Tonya Elizabeth Cramer, M.D., MPH
Preventive Medicine
Medicare: Medicare Enrolled
Practice Location: 24785 Stewart Street Evans Hall Suite 204, Loma Linda, CA 92350
Phone: 909-558-6600    
Silvia Cristina Caswell, DO
Preventive Medicine
Medicare: Medicare Enrolled
Practice Location: 24785 Stewart St Ste 111, Loma Linda, CA 92350
Phone: 909-558-4594    
Dr. Andrew H. Guo, MD, MPH, MBA
Preventive Medicine
Medicare: Not Enrolled in Medicare
Practice Location: Va Loma Linda Healthcare System, 11201 Benton St (111-om), Loma Linda, CA 92357
Phone: 909-825-7084    Fax: 909-777-3274

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.