Siamak Elyasi, M.D.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

A50205 Issued in CA

Practice address

2220 Gladstone Dr
Suite 3
Pittsburg, CA 94565-5123

Phone

(925) 779-9601

Fax

(925) 432-4590

NPI assigned

May 24, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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 and National Provider Directory roles.

• Pittsburg-Antioch Medical Group a Professional Corporation

  • Internal Medicine Physician
  • Pittsburg, CA
  • NPI 1619922911

  Family Medicine

  Medicare reassignment NPD

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

{
    "created_epoch": "1148428800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1467407809",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2220 GLADSTONE DR",
            "address_2": "STE 3",
            "city": "PITTSBURG",
            "state": "CA",
            "postal_code": "945655123",
            "telephone_number": "925-779-9601",
            "fax_number": "925-432-4590"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2220 GLADSTONE DR",
            "address_2": "SUITE 3",
            "city": "PITTSBURG",
            "state": "CA",
            "postal_code": "945655123",
            "telephone_number": "925-779-9601",
            "fax_number": "925-432-4590"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ELYASI",
        "first_name": "SIAMAK",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-24",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A50205",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A502050",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Eastbay Healthcare Service LLC
• Lori Michelle Eaton, CCC-SLP
• Ahwouh L Ebu
• Fady Edward
• Sara Eisenstaedt
• Ema Board and Carehome
• Denise Emery
• Enlight Consulting Co
• Ma Stephanie Nares Enriquez, ADMINISTRATOR, OWNER
• Armida Fajardo, FNP-BC

• Family Medicine Physician in Pittsburg, CA
• Providers in Pittsburg, CA by specialty
• Family Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.