Dr Stephen Justin Sims, MD - Medicare Family Practice in Mountain View, CA

Dr Stephen Justin Sims, MD is a medicare enrolled "Family Medicine" physician in Mountain View, California. He went to State University Of New York Downstate Medical Center and graduated in 1989 and has 35 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Bass Medical Group and his current practice location is 525 South Dr Ste 107, Mountain View, California. You can reach out to his office (for appointments etc.) via phone at (650) 386-0386.

Dr Stephen Justin Sims is licensed to practice in California (license number G69269) 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 1568453264.

Contact Information

Dr Stephen Justin Sims, MD
525 South Dr Ste 107,
Mountain View, CA 94040-4211
(650) 386-0386
(650) 386-0468

Map and Direction




Physician's Profile

Full NameDr Stephen Justin Sims
GenderMale
SpecialityFamily Practice
Experience35 Years
Location525 South Dr Ste 107, Mountain View, 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 Stephen Justin Sims attended and graduated from State University Of New York Downstate Medical Center in 1989
  NPI Data:
  • NPI Number: 1568453264
  • Provider Enumeration Date: 11/02/2005
  • Last Update Date: 03/25/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0840468104
  • Enrollment ID: I20110713000173

Medical Identifiers

Medical identifiers for Dr Stephen Justin Sims such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1568453264NPI-NPPES
6283233MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine G69269 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
El Camino HospitalMountain view, CAHospital
Stanford Health CareStanford, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Bass Medical Group9032111281303

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 Stephen Justin Sims allows following entities to bill medicare on his behalf.
Entity NameBass Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174253405
PECOS PAC ID: 9032111281
Enrollment ID: O20070201000181

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 Stephen Justin Sims 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 Stephen Justin Sims, MD
525 South Dr Ste 107,
Mountain View, CA 94040-4211

Ph: (650) 386-0386
Dr Stephen Justin Sims, MD
525 South Dr Ste 107,
Mountain View, CA 94040-4211

Ph: (650) 386-0386

Reviews and Comments


Family Medicine Doctors in Mountain View, CA

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Dr. William Le,
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Christine P. Weigen, M.D.
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Practice Location: 225 San Antonio Rd, Mountain View, CA 94040
Phone: 650-948-0807    Fax: 650-948-3319

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.