Active NPI
Alyssa Millar, FNP-C
- Nurse Practitioner
- Phoenix, AZ
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nurse Practitioner
- License
- 256283
- Practice address
- 6707 N 19TH Ave
Phoenix, AZ 85015-1104 - Phone
- (602) 693-1183
- NPI assigned
- Apr 10, 2021
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gerontology Nurse Practitioner | 363LG0600X | 256283 | AZ | |
| Nurse Practitioner | 363L00000X | 256283 | AZ | Primary |
| Primary Care Nurse Practitioner | 363LP2300X | 256283 | AZ |
Addresses
Primary practice location
6707 N 19TH Ave
Phoenix, AZ 85015-1104
Mailing address
4388 E Renee Dr
Phoenix, AZ 85050-4308
Phone (928) 301-9603
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| CONNECT URL | EPIC | Health Information Exchange (HIE) |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: No
- Medical equipment: Yes
- Home health: No
- Power mobility devices: Yes
- Hospice: No
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 256283 | AZ | MD | Primary Care Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Honorhealth Ambulatory | Current | Accepting new patients | |
| Honorhealth Ambulatory | Current | Accepting new patients | |
| Honorhealth Ambulatory | Current | Accepting new patients | |
| Thompson Peak Family Care, PC | Past | Accepting new patients | |
| Honorhealth Ambulatory | Past | Accepting new patients |
Locations
1124 E McKellips Rd
Ste 110
Mesa, AZ 85203
Phone (480) 882-4509
340 E Palm Ln
Ste A175
Phoenix, AZ 85004
Phone (602) 386-1100
9250 W Thomas Rd
Ste 300
Phoenix, AZ 85037
Phone (602) 386-1100
2500 W Utopia Rd
Ste 100
Phoenix, AZ 85027
Phone (623) 683-4462
10510 N 92nd St
Ste 200
Scottsdale, AZ 85258
Phone (480) 323-1250
20201 N Scottsdale Healthcare Dr
Ste 200
Scottsdale, AZ 85255
Phone (480) 993-2269
Interoperability endpoints
- https://api.platform.athenahealth.com/3660/brand/1/csg/1/fhir/r4
Organizations & group practices 5
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.
-
- Orthopaedic Surgery Physician
- Scottsdale, AZ
- NPI 1376156638
-
dba HonorHealth Research Institute
- Hematology & Oncology Physician
- Scottsdale, AZ
- NPI 1407050917
-
- Emergency Medicine Physician
- Mesa, AZ
- NPI 1891518130
-
- Cardiovascular Disease Physician
- Scottsdale, AZ
- NPI 1275833915
-
- Family Medicine Physician
- Scottsdale, AZ
- NPI 1528003290
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1618012800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1768694400000",
"number": "1134709595",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4388 E RENEE DR",
"city": "PHOENIX",
"state": "AZ",
"postal_code": "850504308",
"telephone_number": "928-301-9603"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6707 N 19TH AVE",
"city": "PHOENIX",
"state": "AZ",
"postal_code": "850151104",
"telephone_number": "602-693-1183"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MILLAR",
"first_name": "ALYSSA",
"credential": "FNP-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-04-10",
"last_updated": "2026-01-18",
"certification_date": "2026-01-18",
"status": "A"
},
"taxonomies": [
{
"code": "363LG0600X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Gerontology",
"state": "AZ",
"license": "256283",
"primary": false
},
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "AZ",
"license": "256283",
"primary": true
},
{
"code": "363LP2300X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Primary Care",
"state": "AZ",
"license": "256283",
"primary": false
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "CONNECT",
"endpointTypeDescription": "CONNECT URL",
"endpoint": "EPIC",
"affiliation": "N",
"endpointDescription": "EPIC",
"use": "HIE",
"useDescription": "Health Information Exchange (HIE)",
"contentType": "OTHER",
"contentTypeDescription": "Other",
"contentOtherDescription": "EMR",
"address_1": "340 E Palm Ln # A175",
"city": "Phoenix",
"state": "AZ",
"country_code": "US",
"postal_code": "850044603",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Phoenix, AZ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 18, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.