Individual provider Active NPI

Lily Helena Ostrer, MD

  • Infectious Disease Physician
  • San Diego, CA
National Provider Identifier
1821592155
Registry record updated May 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
A186619 Issued in CA
Practice address
9500 Gilman Dr
San Diego, CA 92093-5004
Phone
(619) 543-3995
NPI assigned
Mar 21, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 20, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Infectious Disease Physician 207RI0200X A186619 CA Primary
Student in an Organized Health Care Education/Training Program 390200000X
Pediatrics Physician 208000000X ME156022 FL
Internal Medicine Physician 207R00000X ME156022 FL

Addresses

Primary practice location

9500 Gilman Dr
San Diego, CA 92093-5004

Mailing address

9500 Gilman Dr
San Diego, CA 92093-5004
Phone (619) 543-3995

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A186619CAMDInfectious Disease Physician
ME156022FLMDPediatrics Physician

NPI Registry JSON

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

{
    "created_epoch": "1521590400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779235200000",
    "number": "1821592155",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9500 GILMAN DR",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "920935004",
            "telephone_number": "619-543-3995"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9500 GILMAN DR",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "920935004",
            "telephone_number": "619-543-3995"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OSTRER",
        "first_name": "LILY",
        "middle_name": "HELENA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-03-21",
        "last_updated": "2026-05-20",
        "certification_date": "2026-05-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CA",
            "license": "A186619",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "FL",
            "license": "ME156022",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "FL",
            "license": "ME156022",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Diego, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.