Shahryar Masouem, M.D.

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

A101561 Issued in CA

Practice address

4790 Irvine Blvd Ste 105-337
Irvine, CA 92620-1973

Phone

(714) 512-2440

Fax

(949) 264-8221

NPI assigned

Feb 26, 2008

Sex

Male

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, TX2 enrollments

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 2

Specialty

Obstetrics/Gynecology

Education

Other, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Magella Medical Group IncGroup PAC ID 7214827591, 23 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: shahryarmasouem@hcpca.allscriptsdirect.net
• Direct secure messaging: smasouem37008@altamed.direct-ci.com

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.

• Magella Medical Group, Inc.

  • Maternal & Fetal Medicine Physician
  • Long Beach, CA
  • NPI 1376640086
  Medicare reassignment Care Compare group
• Healthcare Partners Affiliates Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1659312593
  Medicare reassignment NPD
• Ouma Health Professional Limited Liability Company

  • Maternal & Fetal Medicine Physician
  • Austin, TX
  • NPI 1023755030
  Medicare reassignment NPD
• Healthcare Partners Affiliates Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Murrieta, CA
  • NPI 1760057269
  NPD
• Dameron Hospital Association

  • General Acute Care Hospital
  • Stockton, CA
  • NPI 1538163886
  NPD (past)
• Dignity Health

  • General Acute Care Hospital
  • Long Beach, CA
  • NPI 1194840421
  NPD (past)
• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  NPD (past)
• Long Beach Memorial Medical

  • Rehabilitation Hospital Unit
  • Long Beach, CA
  • NPI 1396791414
  NPD (past)
• Long Beach Memorial Medical

  • Children's Hospital
  • Long Beach, CA
  • NPI 1477596583
  NPD (past)
• Orange Coast Memorial Medical Center

  • General Acute Care Hospital
  • Fountain Valley, CA
  • NPI 1497702575
  NPD (past)
• Providence Health System Southern California

  • General Acute Care Hospital
  • Torrance, CA
  • NPI 1902844988
  NPD (past)
• Saddleback Memorial Medical Center

  • Rehabilitation Hospital Unit
  • Laguna Hills, CA
  • NPI 1114967114
  NPD (past)

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

{
    "created_epoch": "1203984000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781654400000",
    "number": "1811166655",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4790 IRVINE BLVD STE 105-337",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926201973",
            "telephone_number": "714-512-2440",
            "fax_number": "949-264-8221"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4790 IRVINE BLVD STE 105-337",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926201973",
            "telephone_number": "714-512-2440",
            "fax_number": "949-264-8221"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "129 Greenwich Rd",
            "address_purpose": "LOCATION",
            "city": "Charlotte",
            "state": "NC",
            "postal_code": "282112313",
            "country_code": "US",
            "telephone_number": "704-266-6454",
            "fax_number": "618-360-7524",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MASOUEM",
        "first_name": "SHAHRYAR",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-02-26",
        "last_updated": "2026-06-17",
        "certification_date": "2026-06-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NC",
            "license": "2026-02749",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "A101561",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1811166655",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Dianne Mason, LMFT
• Trina Mason
• Tristian Mason
• Loue Masoud
• Banafsheh Masoudi
• Sandy Masson
• Daniela Mata
• Brianna Danielle Matamoros
• Marivic Matanza
• Matcha Health, Inc.

• Obstetrics & Gynecology Physician in Irvine, CA
• Providers in Irvine, CA by specialty
• Obstetrics & Gynecology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 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.