Dr Gilbert M Simas, MD - Medicare Psychiatry in Los Angeles, CA

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Dr Gilbert M Simas, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Los Angeles, California. He graduated from medical school in 2004 and has 22 years of diverse experience with area of expertise as Psychiatry. He is a member of the group practice Forefront-rosenzweig Medical Services Professional Corporation, Rainier Springs Physician Group Llc, Integrative Psychiatry A Medical Corporation, County Of Santa Clara and his current practice location is 6500 Wilshire Blvd Fl 19, Los Angeles, California. You can reach out to his office (for appointments etc.) via phone at (805) 764-9651.

Dr Gilbert M Simas is licensed to practice in California (license number C178910) 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 1497802383.

Contact Information

Dr Gilbert M Simas, MD
6500 Wilshire Blvd Fl 19,
Los Angeles, CA 90048-4920
(805) 764-9651
(747) 330-1670

Map and Direction




Physician's Profile

Full NameDr Gilbert M Simas
GenderMale
SpecialityPsychiatry
Experience22 Years
Location6500 Wilshire Blvd Fl 19, Los Angeles, 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 Gilbert M Simas graduated from medical school in 2004
  NPI Data:
  • NPI Number: 1497802383
  • Provider Enumeration Date: 01/04/2007
  • Last Update Date: 07/02/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3274684071
  • Enrollment ID: I20090707000365

Medical Identifiers

Medical identifiers for Dr Gilbert M Simas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497802383NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry DR.0068674 (Colorado)Secondary
2084P0800XPsychiatry & Neurology - Psychiatry 46439 (Arizona)Secondary
2084P0802XPsychiatry & Neurology - Addiction Psychiatry MD60044426 (Washington)Secondary
2084P0800XPsychiatry & Neurology - Psychiatry C178910 (California)Primary
2084P0800XPsychiatry & Neurology - Psychiatry LL18197 (Oregon)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Santa Clara Valley Medical CenterSan jose, CAHospital
Memorial Hospital Los BanosLos banos, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Forefront-rosenzweig Medical Services Professional Corporation105269745533
Rainier Springs Physician Group Llc05475145497
Integrative Psychiatry A Medical Corporation45870572868
County Of Santa Clara12542449731004

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 Gilbert M Simas allows following entities to bill medicare on his behalf.
Entity NameTelecare Mental Health Services Of Washington, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780913657
PECOS PAC ID: 5698804409
Enrollment ID: O20100603000217
Entity NameValley Medical Group-renton
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619209574
PECOS PAC ID: 4183753965
Enrollment ID: O20100604000113
Entity NameForefront-rosenzweig Medical Services Professional Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588101745
PECOS PAC ID: 1052697455
Enrollment ID: O20170504002013
Entity NameRainier Springs Physician Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306321237
PECOS PAC ID: 0547514549
Enrollment ID: O20181109001590
Entity NameAccess Telecare Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013303080
PECOS PAC ID: 7810204831
Enrollment ID: O20200228000192
Entity NameAmerican Behavioral Health Systems, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962991661
PECOS PAC ID: 9335550052
Enrollment ID: O20201201000748

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 Gilbert M Simas 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 Gilbert M Simas, MD
2747 Paradise Rd Unit 2105,
Las Vegas, NV 89109-9065

Ph: (702) 575-4110		Dr Gilbert M Simas, MD
6500 Wilshire Blvd Fl 19,
Los Angeles, CA 90048-4920

Ph: (805) 764-9651

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.