Individual provider Active NPI

Ivan H. El-Sayed, M.D.

  • Otolaryngology Physician
  • San Francisco, CA
National Provider Identifier
1821036419
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Otolaryngology PhysicianTaxonomy code 207Y00000X
License
A79136 Issued in CA
Practice address
400 Parnassus Ave
San Francisco, CA 94143-2202
Phone
(415) 353-2401
Fax
(415) 353-2603
NPI assigned
Jun 3, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Otolaryngology Physician 207Y00000X A79136 CA Primary

Addresses

Primary practice location

400 Parnassus Ave
San Francisco, CA 94143-2202

Mailing address

1635 Divisadero Street
Suite 625, Box 1821
San Francisco, CA 94143-0001
Phone (415) 476-4029

Other identifiers 1

IdentifierTypeStateIssuer
00A791360MedicaidCA

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20080229000356 CA Practitioner - Otolaryngology 0547344558 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Otolaryngology
Education
Boston University School of Medicine, 1996
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
UCSF Medical Group Business ServicesGroup PAC ID 3779497870, 1,533 clinicians

Practice addresses (Care Compare)

400 Parnassus Ave
San Francisco, CA 94143-2202
Phone (415) 476-1000

Hospital & facility affiliations

  • UCSF Medical Center Hospital, San Francisco, CA, CCN 050454
  • Providence Santa Rosa Memorial Hospital Hospital, Santa Rosa, CA, CCN 050174

Merit-based Incentive Payment System (MIPS)

Final score
87.01 of 100Reported as group
Quality
86.78
Improvement activities
40
Cost
70.46

Merit-based Incentive Payment System (MIPS)

Final score
84.89 of 100Reported as group
Quality
81.13
Improvement activities
40
Cost
71.5

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
79136CAMDPharmacist
A79136CAMDOtolaryngology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
UCSF Medical Group Business Services Otolaryngology CurrentSince Jul 1, 2002 Accepting new patients
University of California San Francisco Current Accepting new patients
University of California SFGH Medical Group CurrentSince Mar 17, 2012 Accepting new patients
University of California SFGH Medical Group Otolaryngology Current Accepting new patients
University of California SFGH Medical Group CurrentSince Mar 17, 2012 Accepting new patients
University of California San Francisco CurrentSince Jun 2, 2007 Accepting new patients
University of California San Francisco CurrentSince Jun 2, 2007 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jul 1, 2002 Accepting new patients
University of California San Francisco Medical Center Past Accepting new patients

Locations

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

2380 Sutter St
Fl 3
San Francisco, CA 94115
Phone (415) 353-2757

1600 Divisadero St
Fl 3
San Francisco, CA 94143
Phone (415) 353-7171

1825 4th St
#4
San Francisco, CA 94143

1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753

400 Parnassus Ave
San Francisco, CA 94143
Phone (415) 353-2000

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

1635 Divisadero St
Ste 625
San Francisco, CA 94115
Phone (415) 476-1977

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

1001 Potrero Ave
Rm 3A32
San Francisco, CA 94110
Phone (628) 206-8291

2380 Sutter St
Fl 2
San Francisco, CA 94115
Phone (415) 353-2757

Interoperability endpoints

  • Direct secure messaging: ielsayed27728@direct-ucsfmedicalcenter.org

Organizations & group practices 9

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1149292800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1821036419",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1635 DIVISADERO STREET",
            "address_2": "SUITE 625, BOX 1821",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430001",
            "telephone_number": "415-476-4029",
            "fax_number": "415-476-4150"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432202",
            "telephone_number": "415-353-2401",
            "fax_number": "415-353-2603"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "EL-SAYED",
        "first_name": "IVAN",
        "middle_name": "H.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "CA",
            "license": "A79136",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A791360",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.