Individual provider Active NPI

Julio Messer, M.D.

  • Gastroenterology Physician
  • New York, NY
National Provider Identifier
1285648212
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
148783 Issued in NY
Practice address
123 E 78TH St
New York, NY 10021-0301
Phone
(212) 288-8787
Fax
(212) 628-0194
NPI assigned
Jul 27, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 148783 NY
Gastroenterology Physician 207RG0100X 148783 NY Primary

Addresses

Primary practice location

123 E 78TH St
New York, NY 10021-0301

Mailing address

123 E 78TH St
New York, NY 10021-0301
Phone (212) 288-8787

Other identifiers 1

IdentifierTypeStateIssuer
00722885MedicaidNY

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
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
I20111122000137 NY Practitioner - GastroenterologyPractitioner - Internal Medicine 9335313758 Reassigns benefits to 1 organization
Practice locations: New York, NY

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai Internal Medicine CurrentSince Nov 29, 2016 Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
For-Med Medical Past Accepting new patients

Locations

7901 Broadway
Rm A119
Elmhurst, NY 11373
Phone (718) 334-3915

7901 Broadway
Flushing, NY 11373
Phone (718) 334-2156

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1153958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1285648212",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "123 E 78TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100210301",
            "telephone_number": "212-288-8787",
            "fax_number": "212-628-0194"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "123 E 78TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100210301",
            "telephone_number": "212-288-8787",
            "fax_number": "212-628-0194"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MESSER",
        "first_name": "JULIO",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-27",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "148783",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NY",
            "license": "148783",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00722885",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.