Esther Margaret Molnar, MD

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

A147419 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

Apr 16, 2012

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Infectious Disease

Education

George Washington University School of Medicine, 2012

Medicare assignment

May accept Medicare assignment

Telehealth

Offers telehealth services

Group practices

Bass Medical GroupGroup PAC ID 9032111281, 292 clinicians

John Muir Trauma Physicians Billing ServiceGroup PAC ID 3476542515, 111 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• John Muir Medical Center - Concord Campus Hospital, Concord, CA, CCN 050496
• John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180
• Sutter Delta Medical Center Hospital, Antioch, CA, CCN 050523
• Sutter Solano Medical Center Hospital, Vallejo, CA, CCN 050101

Merit-based Incentive Payment System (MIPS)

Final score

91.74 of 100Reported as individual

Quality

67.56

Promoting interoperability

100

Improvement activities

40

Cost

71.56

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: emolnar119324@ehr.johnmuirhealth.com
• Direct secure messaging: emolnar411117@hisp.ehr.sutterhealth.org

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

• Bass Medical Group

  • Obstetrics & Gynecology Physician
  • Walnut Creek, CA
  • NPI 1174253405
  Medicare reassignment Care Compare group NPD
• John Muir Trauma Physicians Billing Service

  • Hospitalist Physician
  • Walnut Creek, CA
  • NPI 1093864837
  Medicare reassignment Care Compare group NPD
• Family Health Centers of San Diego, Inc

  • Federally Qualified Health Center (FQHC)
  • San Diego, CA
  • NPI 1447281936
  Medicare reassignment NPD
• Contra Costa County

  • Adult Mental Health Clinic/Center
  • San Pablo, CA
  • NPI 1376620336
  Medicare reassignment
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • Antioch, CA
  • NPI 1396124574
  NPD
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • San Ramon, CA
  • NPI 1467329904
  NPD
• Family Health Centers of San Diego Inc

  • Federally Qualified Health Center (FQHC)
  • San Diego, CA
  • NPI 1952729303
  NPD
• Family Health Centers of San Diego, Inc

  • Federally Qualified Health Center (FQHC)
  • Escondido, CA
  • NPI 1356178180
  NPD
• John Muir Trauma Physicians Billing Service

  • Trauma Surgery Physician
  • Walnut Creek, CA
  • NPI 1962551861

  Infectious Disease

  NPD
• Bass Medical Group

  • Specialist
  • Walnut Creek, CA
  • NPI 1154401941
  NPD (past)
• Bass Medical Group

  • Pain Medicine Physician
  • Visalia, CA
  • NPI 1326409343
  NPD (past)
• John Muir Health

  • Rehabilitation Hospital Unit
  • Walnut Creek, CA
  • NPI 1447269303
  NPD (past)

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

• John Muir Health

  • General Acute Care Hospital
  • Walnut Creek, CA
  • NPI 1740215219
  Care Compare affiliation
• John Muir Health

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Antioch, CA
  • NPI 1467808659
  Care Compare affiliation
• Sutter Valley Hospitals

  • General Acute Care Hospital
  • Vallejo, CA
  • NPI 1366686248
  Care Compare affiliation

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

{
    "created_epoch": "1334534400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1740960000000",
    "number": "1831456896",
    "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": "MOLNAR",
        "first_name": "ESTHER",
        "middle_name": "MARGARET",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2012-04-16",
        "last_updated": "2025-03-03",
        "certification_date": "2025-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A147419",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CA",
            "license": "A147419",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Maisie Sophia Mok, D.O.
• Robert Scott Molden, PA-C
• Kimberly Molina
• Nelson Molina, BS
• Szilvia Molitorisz, MD
• Gina Elizabeth Momaney, DPT, PT
• Mona Elsayed Aly Orady MD PC
• Monarch Acupuncture & Wellness
• Rose Michaelena Monardo, M.D.
• Caitlin Mondt

• Infectious Disease Physician in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Infectious Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 3, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.