Mahyar Sadeghi Tari, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A106508 Issued in CA

Practice address

450 E Huntington Dr
Arcadia, CA 91006-3748

Phone

(949) 395-6659

NPI assigned

Jan 20, 2009

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

Internal Medicine

Education

Other, 2001

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Saddleback Medical Group IncGroup PAC ID 5092606905, 27 clinicians

Healthcare Partners Affiliates Medical GroupGroup PAC ID 7315842002, 775 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Care Plus Home Health Home health agency, Laguna Hills, CA, CCN 059376
• Providence at Home With Compassus Home Health Orange County Home health agency, Anaheim, CA, CCN 057600
• Memorialcare Saddleback Medical Center Hospital, Laguna Hills, CA, CCN 050603
• Providence Mission Hospital Hospital, Mission Viejo, CA, CCN 050567

Merit-based Incentive Payment System (MIPS)

Final score

86.53 of 100Reported as individual

Quality

96.67

Promoting interoperability

69

Improvement activities

40

Cost

84.26

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mahyar.sadeghi.p15@direct.monarchhealthcare.nextgenshare.com
• Direct secure messaging: msadeghitari195122@westdirect.optum.com

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.

• Healthcare Partners Affiliates Medical Group

  dba Optum

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1659312593
  Medicare reassignment Care Compare group NPD
• Saddleback Medical Group Inc

  • Gastroenterology Physician
  • Laguna Hills, CA
  • NPI 1386605822
  Medicare reassignment Care Compare group NPD
• Healthcare Partners Affiliates Medical Group

  dba Optum

  • Durable Medical Equipment & Medical Supplies
  • Murrieta, CA
  • NPI 1760057269
  NPD
• Saddleback Memorial Medical Center

  • Rehabilitation Hospital Unit
  • Laguna Hills, CA
  • NPI 1114967114
  NPD (past)
• Memorial Medical Group Inc

  • Durable Medical Equipment & Medical Supplies
  • Phoenix, AZ
  • NPI 1255523643
  NPD (past)

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

• Care Plus Nursing Services, Inc.

  dba CARE PLUS Home Health

  • Home Health Agency
  • Laguna Hills, CA
  • NPI 1528385143
  Care Compare affiliation
• CP Orange County S-Ca HH, LLC

  dba Providence at Home with Compassus Home Health, Orange County

  • Home Health Agency
  • Anaheim, CA
  • NPI 1588486716
  Care Compare affiliation
• Mission Hospital Regional Medical Center

  dba Providence Mission Hospital

  • General Acute Care Hospital
  • Mission Viejo, CA
  • NPI 1912108002
  Care Compare affiliation
• Mission Hospital Regional Medical Center

  dba Mission Hospital

  • General Acute Care Hospital
  • Mission Viejo, CA
  • NPI 1992752315
  Care Compare affiliation
• Saddleback Memorial Medical Center

  • General Acute Care Hospital
  • Laguna Hills, CA
  • NPI 1275576381
  Care Compare affiliation

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

{
    "created_epoch": "1232409600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771632000000",
    "number": "1275770885",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35380",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891335380"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 E HUNTINGTON DR",
            "city": "ARCADIA",
            "state": "CA",
            "postal_code": "910063748",
            "telephone_number": "949-395-6659"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "24411 Health Center Dr Ste 460",
            "address_purpose": "LOCATION",
            "city": "Laguna Hills",
            "state": "CA",
            "postal_code": "926533687",
            "country_code": "US",
            "telephone_number": "949-373-7799",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SADEGHI TARI",
        "first_name": "MAHYAR",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2009-01-20",
        "last_updated": "2026-02-21",
        "certification_date": "2026-02-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A106508",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A106508",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ruyi Louie Acupuncture Integrative Medicine Corp (RUYI Acupuncture Integrative Medicine Clinic)
• Ryan Wang DO
• Ryan Wang DO
• S.M.a.R.T. Spine Institute
• Mary Constance Querubin Sabio-Memije, NP
• Jess Lomeli Saenz, DDS
• Saguaro Family Counseling, Inc (Saguaro Counseling)
• Janet S Sai
• Divya Sakaria, OTR/L
• Grace Saker

• Internal Medicine Physician in Arcadia, CA
• Providers in Arcadia, 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 Feb 21, 2026; 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.