Mr Siamak Heshmati, MD - Medicare Family Practice in Lancaster, CA

Mr Siamak Heshmati, MD is a medicare enrolled "Family Medicine" physician in Lancaster, California. He graduated from medical school in 1998 and has 26 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Southern California Permanente Medical Group and his current practice location is 44469 10th St W, Lancaster, California. You can reach out to his office (for appointments etc.) via phone at (661) 945-9411.

Mr Siamak Heshmati is licensed to practice in California (license number A84044) 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 1972550077.

Contact Information

Mr Siamak Heshmati, MD
44469 10th St W,
Lancaster, CA 93534-3324
(661) 945-9411
(661) 945-7115

Map and Direction




Physician's Profile

Full NameMr Siamak Heshmati
GenderMale
SpecialityFamily Practice
Experience26 Years
Location44469 10th St W, Lancaster, California
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:
  • Mr Siamak Heshmati graduated from medical school in 1998
  NPI Data:
  • NPI Number: 1972550077
  • Provider Enumeration Date: 05/27/2006
  • Last Update Date: 11/29/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7618950585
  • Enrollment ID: I20040610001657

Medical Identifiers

Medical identifiers for Mr Siamak Heshmati such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972550077NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A84044 (California)Primary

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. Mr Siamak Heshmati 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: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678

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. Mr Siamak Heshmati 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
Mr Siamak Heshmati, MD
44469 10th St W,
Lancaster, CA 93534-3324

Ph: (661) 945-9411
Mr Siamak Heshmati, MD
44469 10th St W,
Lancaster, CA 93534-3324

Ph: (661) 945-9411

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.