Dr Walter Thomas, MD - Medicare Family Practice in Simi Valley, CA

Dr Walter Thomas, MD is a medicare enrolled "Family Medicine" physician in Simi Valley, California. He graduated from medical school in 1973 and has 51 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Walter Thomas Md A Medical Corporation and his current practice location is 1980 Sequoia Ave, Simi Valley, California. You can reach out to his office (for appointments etc.) via phone at (805) 527-1804.

Dr Walter Thomas is licensed to practice in California (license number A34536) 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 1952379463.

Contact Information

Dr Walter Thomas, MD
1980 Sequoia Ave,
Simi Valley, CA 93063-3167
(805) 527-1804
(805) 527-5241

Map and Direction




Physician's Profile

Full NameDr Walter Thomas
GenderMale
SpecialityFamily Practice
Experience51 Years
Location1980 Sequoia Ave, Simi Valley, 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:
  • Dr Walter Thomas graduated from medical school in 1973
  NPI Data:
  • NPI Number: 1952379463
  • Provider Enumeration Date: 03/09/2006
  • Last Update Date: 12/17/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 7911988621
  • Enrollment ID: I20101101001082

Medical Identifiers

Medical identifiers for Dr Walter Thomas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1952379463NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A34536 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Walter Thomas Md A Medical Corporation47896153862

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 Walter Thomas allows following entities to bill medicare on his behalf.
Entity NameNewbury Park Urgent Care Center Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821064239
PECOS PAC ID: 9931180643
Enrollment ID: O20040527001345
Entity NameWalter Thomas Md A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598953358
PECOS PAC ID: 4789615386
Enrollment ID: O20050823001097
Entity NameSpringbok Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417923400
PECOS PAC ID: 8820251424
Enrollment ID: O20120517000608

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 Walter Thomas 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 Walter Thomas, MD
Po Box 2218,
Simi Valley, CA 93062-2218

Ph: (805) 527-1804
Dr Walter Thomas, MD
1980 Sequoia Ave,
Simi Valley, CA 93063-3167

Ph: (805) 527-1804

Reviews and Comments


Family Medicine Doctors in Simi Valley, CA

Denise Lu-gee Hom, MD
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Phone: 805-522-6577    Fax: 805-522-7030
Dr. Bennett Lee, M.D.
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Phone: 805-522-6577    Fax: 805-522-7030
Daria Younessi, MD
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Phone: 805-955-6500    
Margaret Soriano, NURSE PRACTITIONER
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Dr. Aubrey Taow, D.O.
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Phone: 805-527-6424    
Tannaz Zahirpour, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2925 Sycamore Dr., Suite 204-205, Simi Valley, CA 93065
Phone: 805-578-9620    Fax: 805-583-0414
Mr. Daniel Bruce Takeda, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2750 Sycamore Drive, Suite 202, Simi Valley, CA 93065
Phone: 805-527-9140    Fax: 805-527-0783

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.