Mavis Song Peng, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A185893 Issued in CA

Practice address

101 The City Dr S
Orange, CA 92868-3201

Phone

(714) 456-8888

NPI assigned

Apr 2, 2020

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

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

HospitalistAlso: Internal Medicine

Education

Virginia Commonwealth University, School of Medicine, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

The Regents of the University of California-IrvineGroup PAC ID 3971609611, 116 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Uci Health-Orange Hospital, Orange, CA, CCN 050348

Merit-based Incentive Payment System (MIPS)

Final score

87.51 of 100Reported as group

Quality

79.37

Promoting interoperability

100

Improvement activities

40

Cost

73.65

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• The Regents of the University of California-Irvine

  dba UC Irvine Hospitalist Program

  • Hospitalist Physician
  • Orange, CA
  • NPI 1154479723
  Medicare reassignment Care Compare group NPD
• UCLA Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1043427248
  NPD (past)
• University of California Irvine

  dba UCI Infusion Center

  • Infusion Therapy Clinic/Center
  • Irvine, CA
  • NPI 1417027475
  NPD (past)

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

• University of California Irvine

  dba University of California Irvine - Cac Urgent Care

  • Urgent Care Clinic/Center
  • Irvine, CA
  • NPI 1518739309

  Hospital

  Care Compare affiliation
• University of California Irvine

  dba Uci Health

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1689608150
  Care Compare affiliation

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

{
    "created_epoch": "1585785600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749772800000",
    "number": "1922637966",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 S MANCHESTER AVE STE 300",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683219",
            "telephone_number": "714-456-8888"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 THE CITY DR S",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683201",
            "telephone_number": "714-456-8888"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "14445 Olive View Dr",
            "address_purpose": "LOCATION",
            "city": "Sylmar",
            "state": "CA",
            "postal_code": "913421437",
            "country_code": "US",
            "telephone_number": "747-210-3205",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "757 Westwood Plz Ste 7501",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "900951437",
            "country_code": "US",
            "telephone_number": "310-267-9643",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PENG",
        "first_name": "MAVIS",
        "middle_name": "SONG",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-04-02",
        "last_updated": "2025-06-13",
        "certification_date": "2025-06-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A185893",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A185893",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "351356256015",
            "state": "VA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Martin Penaloza
• Ricardo Alberto Penaloza
• Aisa Penaranda Guiling
• Christine Yue Peng, MD
• Jiun Rong Peng, MD
• Alexandra Pennachio
• Sualua Pepe
• Celeste Pepitone, MS CCC
• Patricia Rocio Perales Huerta, PSY.D.
• Javier Perales

• Internal Medicine Physician in Orange, CA
• Providers in Orange, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 13, 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.