John L Barstis, MD - Internal Medicine in Valencia, CA

John L Barstis, MD is a Internal Medicine - Hematology & Oncology physician based in Valencia, California. John L Barstis is licensed to practice in California (license number G39366) and his current practice location is 23929 Mcbean Pkwy, Bldg F Ste 215, Valencia, California. He can be reached at his office (for appointments etc.) via phone at (661) 255-5350.

NPI number for John L Barstis is 1528093085 and his current mailing address is 5767 W Century Blvd, Suite 200, Los Angeles, California. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1528093085.

Contact Information

John L Barstis, MD
23929 Mcbean Pkwy, Bldg F Ste 215,
Valencia, CA 91355-4466
(661) 255-5350
(661) 255-9907

Map and Direction




Physician's Profile

Full NameJohn L Barstis
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location23929 Mcbean Pkwy, Valencia, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1528093085
  • Provider Enumeration Date: 07/12/2006
  • Last Update Date: 05/26/2010

Medical Identifiers

Medical identifiers for John L Barstis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528093085NPI-NPPES
00G393660MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology G39366 (California)Primary

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. John L Barstis is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John L Barstis, MD
5767 W Century Blvd, Suite 200,
Los Angeles, CA 90045-5632

Ph: (661) 255-5350
John L Barstis, MD
23929 Mcbean Pkwy, Bldg F Ste 215,
Valencia, CA 91355-4466

Ph: (661) 255-5350

Reviews and Comments


Internal Medicine Doctors in Valencia, CA

Mostafa Tabassomi, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 23838 Valencia Blvd Ste 304, Valencia, CA 91355
Phone: 661-430-9030    Fax: 661-430-9020
Dr. Gene L Tran, D.O.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 23803 Mcbean Pkwy, Valencia, CA 91355
Phone: 661-481-2400    
Dr. Robert Kozlowski, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 25751 Mcbean Pkwy Ste 210, Valencia, CA 91355
Phone: 661-284-3100    Fax: 661-290-3310
Dr. Douglas R Gadowski, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 25775 Mcbean Pkwy, Ste 105, Valencia, CA 91355
Phone: 661-255-2410    Fax: 661-255-8671
Sittiporn Bencharit, M.D.
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 25775 Mcbean Pkwy, Suite 115, Valencia, CA 91355
Phone: 661-255-2420    Fax: 661-259-0552
David Elliott Krieger, M.D.,PH.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 25775 Mcbean Pkwy, Suite 115, Valencia, CA 91355
Phone: 661-255-2420    Fax: 661-259-5741
Arousha Davatgarzadeh, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 26357 Mcbean Pkwy, Valencia, CA 91355
Phone: 661-222-2605    Fax: 661-222-2694

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.