NPIMap

Individual provider Active NPI

Stephen Justin Sims, MD

  • Family Medicine Physician
  • Mountain View, CA
National Provider Identifier
1568453264
Registry record updated Feb 27, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
G69269 Issued in CA
Practice address
525 South Dr Ste 107
Mountain View, CA 94040-4211
Phone
(650) 386-0386
Fax
(650) 386-0468
NPI assigned
Nov 2, 2005
Last updated
Feb 27, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 27, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X G69269 CA Primary

Addresses

Primary practice location

525 South Dr Ste 107
Mountain View, CA 94040-4211

Mailing address

525 South Dr Ste 107
Mountain View, CA 94040-4211
Phone (650) 386-0386

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110713000173 CA Practitioner - Family Practice 0840468104 Reassigns benefits to 1 organization
Practice locations: Mountain View, CA

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
State University of New York Downstate Medical Center, 1989
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Bass Medical GroupGroup PAC ID 9032111281, 292 clinicians

Practice addresses (Care Compare)

2204 Grant Rd
Suite 103
Mountain View, CA 94040-3877
Phone (650) 967-8841

2637 Shadelands Dr
Walnut Creek, CA 94598-2512
Phone (925) 378-4512

365 Lennon LN
Walnut Creek, CA 94598-5915

525 S Dr
Suite 107
Mountain View, CA 94040-4211
Phone (650) 386-0386

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
90.98 of 100Reported as apm
Quality
80.39
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal or shaving of skin growth1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Bass Medical Group CurrentSince Dec 1, 2018 Accepting new patients
Bass Medical Group Family Medicine Current Accepting new patients
Bass Medical Group CurrentSince Dec 1, 2018 Accepting new patients
Stephen Sims MD Past Accepting new patients

Locations

2204 Grant Rd
Ste 103
Mountain View, CA 94040
Phone (650) 967-8841

525 South Dr
Ste 107
Mountain View, CA 94040
Phone (408) 238-8353

365 Lennon Ln
Ste 250
Walnut Creek, CA 94598
Phone (925) 627-3424

Interoperability endpoints

  • Direct secure messaging: ssims125197@ehr.johnmuirhealth.com
  • Direct secure messaging: stephen_sims@drstephensims.amazing-direct.com

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 12

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1130889600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1740614400000",
    "number": "1568453264",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "525 SOUTH DR STE 107",
            "city": "MOUNTAIN VIEW",
            "state": "CA",
            "postal_code": "940404211",
            "telephone_number": "650-386-0386",
            "fax_number": "650-386-0468"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "525 SOUTH DR STE 107",
            "city": "MOUNTAIN VIEW",
            "state": "CA",
            "postal_code": "940404211",
            "telephone_number": "650-386-0386",
            "fax_number": "650-386-0468"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIMS",
        "first_name": "STEPHEN",
        "middle_name": "JUSTIN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-02",
        "last_updated": "2025-02-27",
        "certification_date": "2025-02-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "G69269",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Mountain View, CA

Sources for this page

Verify at the official NPI Registry.