Active NPI
Denise Grayzell
- Marriage & Family Therapist
- Mililani, HI
National Provider Identifier
1477044899
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Marriage & Family Therapist
- License
- MFT-1005
- Practice address
- PO Box 893983
Mililani, HI 96789-0983 - Phone
- (808) 348-2319
- NPI assigned
- May 21, 2018
- Sex
- Female
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Marriage & Family Therapist | 106H00000X | MFT-1005 | HI | Primary |
Addresses
Primary practice location
PO Box 893983
Mililani, HI 96789-0983
Mailing address
PO Box 893983
Mililani, HI 96789-0983
Phone (808) 944-6550
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MFT-1005 | HI | MD | Marriage & Family Therapist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Denise Grayzell Therapy LLC | Marriage & Family Therapist | Current | Accepting new patients |
| Young Men'S Christian Association of Honolulu | Health Educator | 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 and National Provider Directory roles.
-
- Marriage & Family Therapist
- Mililani, HI
- NPI 1669329298
-
- Health Educator
- Honolulu, HI
- NPI 1083850234
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1526860800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787184000000",
"number": "1477044899",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 893983",
"city": "MILILANI",
"state": "HI",
"postal_code": "967890983",
"telephone_number": "808-944-6550"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "PO BOX 893983",
"city": "MILILANI",
"state": "HI",
"postal_code": "967890983",
"telephone_number": "808-348-2319"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRAYZELL",
"first_name": "DENISE",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2018-05-21",
"last_updated": "2026-08-20",
"certification_date": "2026-08-20",
"status": "A"
},
"taxonomies": [
{
"code": "106H00000X",
"taxonomy_group": "",
"desc": "Marriage & Family Therapist",
"state": "HI",
"license": "MFT-1005",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Mililani, HI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 20, 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.