Ernest William Kornmehl, MD

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

58784 Issued in MA

Practice address

44 Washington St
Brookline, MA 02445-7130

Phone

(617) 232-9600

Fax

(617) 232-7002

NPI assigned

Oct 25, 2005

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 3

Medicare fee-for-service enrollment

Enrolled in MA

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

Ophthalmology

Education

State University of New York Downstate Medical Center, 1984

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Boston Eye Physicians and Surgeons, P.C.Group PAC ID 0244393973, 6 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ekornmehl46087@tuftsmedicine.direct-ci.com
• Direct secure messaging: ernest.kornmehl.1@16489.direct.athenahealth.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.

• Boston Eye Physicians & Surgeons, P.C.

  • Ophthalmology Physician
  • Brookline, MA
  • NPI 1013041318
  Medicare reassignment Care Compare group NPD
• Kornmehl Laser Eye Associates PC

  • Ophthalmology Physician
  • Wellesley Hills, MA
  • NPI 1235934274
  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1130198400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1739491200000",
    "number": "1104816842",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 9142",
            "address_2": "MASS GENERAL PHYSICIAN ORGANIZATION",
            "city": "CHARLESTOWN",
            "state": "MA",
            "postal_code": "021299142",
            "telephone_number": "617-724-0287",
            "fax_number": "617-726-2894"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "44 WASHINGTON ST",
            "city": "BROOKLINE",
            "state": "MA",
            "postal_code": "024457130",
            "telephone_number": "617-232-9600",
            "fax_number": "617-232-7002"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KORNMEHL",
        "first_name": "ERNEST",
        "middle_name": "WILLIAM",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-25",
        "last_updated": "2025-02-14",
        "certification_date": "2025-02-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "MA",
            "license": "58784",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TUFTS HEALTH PLAN",
            "identifier": "058784",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3068820",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS MA",
            "identifier": "J09372",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Cyrus Komer, MD
• R Roger Komer, M.D.
• Aaron Elijah Kook, LMHC
• Ainat Koren, PHD, DNP, PMHNP
• Amanda Korff, PSYD
• Sarah Fine Kosa, PH.D
• Robin Koskinen, RNCS-PNP
• Sarah Emily Kostecki, MA, RDT
• Karissa Rae Koster, DMD
• Fotini Kostogiannis, OD

• Ophthalmology Physician in Brookline, MA
• Providers in Brookline, MA by specialty
• Ophthalmology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 14, 2025; 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.