NPIMap

Individual provider Active NPI

Szilvia Molitorisz, MD

  • Infectious Disease Physician
  • Walnut Creek, CA
National Provider Identifier
1295806289
Registry record updated Sep 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
C55767 Issued in CA
Practice address
365 Lennon LN Ste 200
Walnut Creek, CA 94598-5912
Phone
(925) 947-2334
Fax
(925) 947-5889
NPI assigned
Nov 13, 2006
Last updated
Sep 29, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 29, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 18405 MS
Infectious Disease Physician 207RI0200X C55767 CA Primary

Addresses

Primary practice location

365 Lennon LN Ste 200
Walnut Creek, CA 94598-5912

Mailing address

365 Lennon LN Ste 200
Walnut Creek, CA 94598-5912
Phone (925) 947-2334

Other identifiers 1

IdentifierTypeStateIssuer
C55767OtherCASTATE OF CALIFORNIA

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
I20130717000864 CA Practitioner - Internal MedicinePractitioner - Infectious Disease 9739178104 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Infectious Disease
Education
Other, 1991
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)

365 Lennon LN
Suite 200
Walnut Creek, CA 94598-5912
Phone (925) 947-2334

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
96.05 of 100Reported as individual
Quality
72.1
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
55767CAMDDentist
18405MSMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Bass Medical Group Current Accepting new patients
Advanced Sleep Diagnostics, Inc. CurrentSince Jul 1, 2022 Accepting new patients
Bass Medical Group CurrentSince Jul 1, 2022 Accepting new patients
Diablo Infectious Disease Consultative Service Med GRP Inc Infectious Disease CurrentSince Jul 8, 2013 Accepting new patients
Sutter Delta Medical Center Past Accepting new patients
Bass Medical Group Past Accepting new patients
Sutter Valley Hospitals Past Accepting new patients
Mississippi Family Doctors Past Accepting new patients
John Muir Health Past Accepting new patients
Praxis Infectious Diseases Infectious Disease Past Accepting new patients
Cogent Healthcare of Jackson Ms, LLC Internal Medicine Past Accepting new patients
John Muir Health Past Accepting new patients
Hayward Sisters Hospital Past Accepting new patients
Dr Christina Hopson Inc Infectious Disease Past Accepting new patients

Locations

1505 Saint Alphonsus Way
Alamo, CA 94507
Phone (925) 837-4225

1141 Catalina Dr
#194
Livermore, CA 94550

1447 Cedarwood Ln
Ste A
Pleasanton, CA 94566
Phone (925) 846-3281

13851 E 14th St
Ste 308
San Leandro, CA 94578
Phone (510) 351-1193

365 Lennon Ln
Ste 200
Walnut Creek, CA 94598
Phone (925) 947-2334

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

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: smolitorisz191597@hisp.ehr.sutterhealth.org

Organizations & group practices 15

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.

View all 15

Hospital & facility affiliations 5

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": "1163376000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1295806289",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "365 LENNON LN STE 200",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945985912",
            "telephone_number": "925-947-2334",
            "fax_number": "925-947-5889"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "365 LENNON LN STE 200",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945985912",
            "telephone_number": "925-947-2334",
            "fax_number": "925-947-5889"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MOLITORISZ",
        "first_name": "SZILVIA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-13",
        "last_updated": "2026-09-29",
        "certification_date": "2025-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MS",
            "license": "18405",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CA",
            "license": "C55767",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE OF CALIFORNIA",
            "identifier": "C55767",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Walnut Creek, CA

Sources for this page

Verify at the official NPI Registry.