Active NPI
Jeffrey Warren Bitterman, M.D.
- Emergency Medicine Physician
National Provider Identifier
1023090248
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- 26811
- 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, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| License | State | Type | Specialty |
|---|---|---|---|
| 26811 | AZ | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New 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.
-
- Emergency Medicine Physician
- Lake Havasu City, AZ
- NPI 1023113966
-
- Emergency Medicine Physician
- Lake Havasu City, AZ
- NPI 1871729038
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.