Individual provider Active NPI

Jeffrey Warren Bitterman, M.D.

  • Emergency Medicine Physician
National Provider Identifier
1023090248
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
26811 Issued in AZ
Practice address
U.S. Naval Hospital Guam, Farenholt Street
Building K-1
Agana Heights, GUAM 96919
UM
Phone
(671) 344-9619
Fax
(671) 344-9446
NPI assigned
Nov 15, 2005
Last updated
Jul 13, 2026By the provider in NPPES
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
Emergency Medicine Physician 207P00000X 26811 AZ Primary

Addresses

Primary practice location

U.S. Naval Hospital Guam, Farenholt Street
Building K-1
Agana Heights, GUAM 96919
UM

Mailing address

P.O. Box 197849
Agana Heights, GUAM 96919
UM
Phone (671) 688-3805

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)
Not enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
26811AZMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Havasu Emergency Physicians, PC Emergency Medicine Past Accepting new patients
Tizon Emergency Associates, PLLC Emergency Medicine Past Accepting new patients

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1132012800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1023090248",
    "addresses": [
        {
            "country_code": "UM",
            "country_name": "United States Minor Outlying Islands",
            "address_purpose": "MAILING",
            "address_type": "FGN",
            "address_1": "P.O. BOX 197849",
            "city": "AGANA HEIGHTS",
            "state": "GUAM",
            "postal_code": "96919",
            "telephone_number": "671-688-3805",
            "fax_number": "671-344-9446"
        },
        {
            "country_code": "UM",
            "country_name": "United States Minor Outlying Islands",
            "address_purpose": "LOCATION",
            "address_type": "FGN",
            "address_1": "U.S. NAVAL HOSPITAL GUAM, FARENHOLT STREET",
            "address_2": "BUILDING K-1",
            "city": "AGANA HEIGHTS",
            "state": "GUAM",
            "postal_code": "96919",
            "telephone_number": "671-344-9619",
            "fax_number": "671-344-9446"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BITTERMAN",
        "first_name": "JEFFREY",
        "middle_name": "WARREN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-15",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "AZ",
            "license": "26811",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Sources for this page

  • 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.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.