Sarah Ruth Rettinger, MD - Medicare Endocrinology in Santa Monica, CA

Sarah Ruth Rettinger, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Santa Monica, California. She went to Yale University School Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Endocrinology. She is a member of the group practice Providence Saint Johns Medical Foundation and her current practice location is 1831 Wilshire Blvd Ste A, Santa Monica, California. You can reach out to her office (for appointments etc.) via phone at (310) 829-8584.

Sarah Ruth Rettinger is licensed to practice in California (license number A88064) 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 1366691842.

Contact Information

Sarah Ruth Rettinger, MD
1831 Wilshire Blvd Ste A,
Santa Monica, CA 90403-5778
(310) 829-8584
(424) 291-4205

Map and Direction




Physician's Profile

Full NameSarah Ruth Rettinger
GenderFemale
SpecialityEndocrinology
Experience22 Years
Location1831 Wilshire Blvd Ste A, Santa Monica, 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:
  • Sarah Ruth Rettinger attended and graduated from Yale University School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1366691842
  • Provider Enumeration Date: 09/09/2008
  • Last Update Date: 04/19/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 5294958625
  • Enrollment ID: I20140603001206

Medical Identifiers

Medical identifiers for Sarah Ruth Rettinger such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366691842NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A88064 (California)Secondary
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism A88064 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Providence Saint John's Health CenterSanta monica, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Saint Johns Medical Foundation0840548624273

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. Sarah Ruth Rettinger allows following entities to bill medicare on her behalf.
Entity NameProvidence Saint Johns Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518438712
PECOS PAC ID: 0840548624
Enrollment ID: O20180810000904

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. Sarah Ruth Rettinger 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
Sarah Ruth Rettinger, MD
725 W La Veta Ave, Suite 220,
Orange, CA 92868-4403

Ph: (714) 771-5700
Sarah Ruth Rettinger, MD
1831 Wilshire Blvd Ste A,
Santa Monica, CA 90403-5778

Ph: (310) 829-8584

Reviews and Comments


Internal Medicine Doctors in Santa Monica, CA

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Dr. Colleen Lucy Channick, M.D.
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Carol Yukiko Nishikubo, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 2001 Santa Monica Blvd Ste 560w, Santa Monica, CA 90404
Phone: 310-453-5654    Fax: 310-453-6885

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.