Active NPI
Dennis Warren Gaither, M.D.
- Psychiatry Physician
- Mount Vernon, WA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- MD00019927
- Practice address
- 1100 S 2ND St
Mount Vernon, WA 98273-4209 - Phone
- (360) 419-3500
- NPI assigned
- Jun 16, 2006
- 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 |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | MD00019927 | WA | Primary |
Addresses
Primary practice location
1100 S 2ND St
Mount Vernon, WA 98273-4209
Mailing address
1512 S 11TH St
Mount Vernon, WA 98274-5008
Phone (360) 336-9509
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 8190027 | Medicaid | WA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in WA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Psychiatry
- Education
- University of Washington School of Medicine, 1979
- Medicare assignment
- May accept Medicare assignment
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1103 Cleveland Ave
Mount Vernon, WA 98273-4215
Phone (360) 336-6868
3600 Meridian St
Bellingham, WA 98225-1732
Phone (360) 676-6000
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD00019927 | WA | MD | Psychiatry Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Shifa Health PLLC | Current | Accepting new patients | |
| Compass Health | Past | Accepting new patients | |
| Lake Whatcom Residential & Treatment Center | Past | Accepting new patients |
Locations
10333 19th Ave SE
Ste 109
Everett, WA 98208
Phone (425) 742-4600
1103 Cleveland Ave
Mount Vernon, WA 98273
Phone (360) 336-6868
Interoperability endpoints
- shifahealth.dennisgaithermd@135077.advancedmd-direct.com
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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Cognitive & Behavioral Psychologist
- Mount Vernon, WA
- NPI 1356415327
-
- Community/Behavioral Health Agency
- Bellingham, WA
- NPI 1043281736
-
- Community/Behavioral Health Agency
- Everett, WA
- NPI 1730136201
-
- Case Management Agency
- Bellingham, WA
- NPI 1780991844
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1150416000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1730123084",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1512 S 11TH ST",
"city": "MOUNT VERNON",
"state": "WA",
"postal_code": "982745008",
"telephone_number": "360-336-9509"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1100 S 2ND ST",
"city": "MOUNT VERNON",
"state": "WA",
"postal_code": "982734209",
"telephone_number": "360-419-3500"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GAITHER",
"first_name": "DENNIS",
"middle_name": "WARREN",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-16",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "WA",
"license": "MD00019927",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "8190027",
"state": "WA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Mount Vernon, WA
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.
- 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.