Dr Karen Antwiler, MD - Medicare Family Medicine in Cathedral City, CA

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Dr Karen Antwiler, MD is a medicare enrolled "Family Medicine - Addiction Medicine" physician in Cathedral City, California. Her current practice location is 67780 E Palm Canyon Dr, Cathedral City, California. You can reach out to her office (for appointments etc.) via phone at (760) 773-4300.

Dr Karen Antwiler is licensed to practice in California (license number A178391) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1598255465.

Contact Information

Dr Karen Antwiler, MD
67780 E Palm Canyon Dr,
Cathedral City, CA 92234-5441
(760) 773-4300
(760) 837-8994

Map and Direction




Physician's Profile

Full NameDr Karen Antwiler
GenderFemale
SpecialityFamily Medicine - Addiction Medicine
Location67780 E Palm Canyon Dr, Cathedral City, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1598255465
  • Provider Enumeration Date: 05/15/2018
  • Last Update Date: 06/27/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3274995741
  • Enrollment ID: I20230815003062

Medical Identifiers

Medical identifiers for Dr Karen Antwiler such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598255465NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 2017039468 (Missouri)Secondary
207QA0401XFamily Medicine - Addiction Medicine A178391 (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 Karen Antwiler allows following entities to bill medicare on her behalf.
Entity NameEisenhower Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013981554
PECOS PAC ID: 5890689657
Enrollment ID: O20100506000102

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 Karen Antwiler 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 Karen Antwiler, MD
67780 E Palm Canyon Dr,
Cathedral City, CA 92234-5441

Ph: (760) 773-4300		Dr Karen Antwiler, MD
67780 E Palm Canyon Dr,
Cathedral City, CA 92234-5441

Ph: (760) 773-4300

Reviews and Comments


Family Medicine Doctors in Cathedral City, CA

Ernest U Campos, DO
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 69175 Ramon Rd Bldg A, Cathedral City, CA 92234
Phone: 760-321-6776    Fax: 760-321-4036
Gina M Caravaglia, DO
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 67580 Jones Rd, Cathedral City, CA 92234
Phone: 760-992-3473    Fax: 760-797-7337
Dr. Damoun A Rezai, M.D., M.H.A.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 69175 Ramon Rd Bldg A, Cathedral City, CA 92234
Phone: 760-321-6776    
Dr. Mark C Freitag, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 67780 E. Palm Canyon Drive, Suite 100, Cathedral City, CA 92234
Phone: 760-773-1680    Fax: 760-328-9379
Michael David Griffis, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 68860 Perez Rd, Cathedral City, CA 92234
Phone: 760-328-4499    Fax: 760-327-3523
Dr. Chandima Ruwan Ratnayake, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 67555 E Palm Canyon Dr Ste C112, Cathedral City, CA 92234
Phone: 760-773-1680    Fax: 760-328-9379

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.