Dr Siddika E Karakas, MD - Medicare Internal Medicine in Sacramento, CA

Dr Siddika E Karakas, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Sacramento, California. Her current practice location is 4150 V Street, Suite G400, Ucdmc Endocrinology, Sacramento, California. You can reach out to her office (for appointments etc.) via phone at (916) 734-3730.

Dr Siddika E Karakas is licensed to practice in California (license number A33466) 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 1386629970.

Contact Information

Dr Siddika E Karakas, MD
4150 V Street, Suite G400, Ucdmc Endocrinology,
Sacramento, CA 95817
(916) 734-3730
(916) 734-7953

Map and Direction




Physician's Profile

Full NameDr Siddika E Karakas
GenderFemale
SpecialityInternal Medicine - Endocrinology, Diabetes & Metabolism
Location4150 V Street, Suite G400, Sacramento, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1386629970
  • Provider Enumeration Date: 12/07/2005
  • Last Update Date: 04/30/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 7719051432
  • Enrollment ID: I20080729000700

Medical Identifiers

Medical identifiers for Dr Siddika E Karakas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386629970NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism A33466 (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 Siddika E Karakas allows following entities to bill medicare on her behalf.
Entity NameRegents Of The Univ Of Ca
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013906973
PECOS PAC ID: 3375456619
Enrollment ID: O20031111000892

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 Siddika E Karakas 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 Siddika E Karakas, MD
515 Waxwing Pl,
Davis, CA 95616-7524

Ph: (530) 752-6254
Dr Siddika E Karakas, MD
4150 V Street, Suite G400, Ucdmc Endocrinology,
Sacramento, CA 95817

Ph: (916) 734-3730

Reviews and Comments


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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.