Sienna Medical Corporation - Medicare Primary Care in Lake Isabella, CA

Sienna Medical Corporation is a medicare enrolled primary clinic (Internal Medicine) in Lake Isabella, California. The current practice location for Sienna Medical Corporation is 6425 Lynch Cyn Blvd, Lake Isabella, California. For appointments, you can reach them via phone at (760) 379-8630. The mailing address for Sienna Medical Corporation is 6425 Lynch Canyon Blvd, Lake Isabella, California and phone number is (760) 379-8630.

Sienna Medical Corporation is licensed to practice in California (license number 20A7951). The clinic also participates in the medicare program and its NPI number is 1174684583. This medical practice accepts medicare insurance (which means this clinic accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance). However, please confirm if they accept your insurance at (760) 379-8630.

Contact Information

Sienna Medical Corporation
6425 Lynch Cyn Blvd
Lake Isabella
CA 93240
(760) 379-8630
(760) 379-7658

Map and Direction


Primary Care Clinic Profile

Full NameSienna Medical Corporation
SpecialityInternal Medicine
Location6425 Lynch Cyn Blvd, Lake Isabella, California
Authorized Official Name and PositionRobert L Gross (OWNER)
Authorized Official Contact7603798630
Accepts Medicare InsuranceYes. This clinic participates in medicare program and accept medicare insurance.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Sienna Medical Corporation
6425 Lynch Canyon Blvd
Lake Isabella
CA 93240-9726

Ph: (760) 379-8630
Sienna Medical Corporation
6425 Lynch Cyn Blvd
Lake Isabella
CA 93240

Ph: (760) 379-8630

NPI Details:

NPI Number1174684583
Provider Enumeration Date12/12/2006
Last Update Date01/18/2024

Medicare PECOS Information:

Medicare PECOS PAC ID7113190877
Medicare Enrollment IDO20111026000117

Medical Identifiers

Medical identifiers for Sienna Medical Corporation such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174684583NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 20A7951 (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. Sienna Medical Corporation acts as a billing entity for following providers:
Provider NameRobert L Gross
Provider TypePractitioner - Internal Medicine
Provider IdentifiersNPI Number: 1396827358
PECOS PAC ID: 4385691898
Enrollment ID: I20050406001160
Provider NameGary Finstad
Provider TypePractitioner - Internal Medicine
Provider IdentifiersNPI Number: 1184763633
PECOS PAC ID: 8820135155
Enrollment ID: I20091019000731
Provider NameAshley May Mcquade
Provider TypePractitioner - Nurse Practitioner
Provider IdentifiersNPI Number: 1417658782
PECOS PAC ID: 7517322357
Enrollment ID: I20230428002401

Reviews and Comments


Internal Medicine in Lake Isabella, CA

Mesa Chiropractic
Primary Care Clinic
Medicare: Not Enrolled in Medicare
Practice Location: 2810 Nugget Ave, Lake Isabella, CA 93240
Phone: 760-379-3425    
Sienna Wellnes Walk-in Clinic
Primary Care Clinic
Medicare: Not Enrolled in Medicare
Practice Location: 6425 Lynch Canyon Dr, Lake Isabella, CA 93240
Phone: 760-379-8630    Fax: 760-379-7658
Kern Valley Healthcare District
Primary Care Clinic
Medicare: Medicare Enrolled
Practice Location: 4300 Birch Street, Lake Isabella, CA 93240
Phone: 760-379-1791    Fax: 760-379-1793
Mt Mesa Medical Group
Primary Care Clinic
Medicare: Not Enrolled in Medicare
Practice Location: 4308 Birch Street, Lake Isabella, CA 93240
Phone: 760-379-2426    Fax: 760-379-2664

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.