Active NPI
Walter Phelps, PHARMD
- Oncology Pharmacist
- Phoenix, AZ
National Provider Identifier
1265360747
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Oncology Pharmacist
- License
- S023864
- Practice address
- 925 E McDowell Rd
Phoenix, AZ 85006-2502 - Phone
- (602) 521-3700
- NPI assigned
- May 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 |
|---|---|---|---|---|
| Oncology Pharmacist | 1835X0200X | S023864 | AZ | Primary |
Addresses
Primary practice location
925 E McDowell Rd
Phoenix, AZ 85006-2502
Mailing address
925 E McDowell Rd
Phoenix, AZ 85006-2502
Phone (602) 521-3700
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 Pharmacy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| S023864 | AZ | MD | Oncology Pharmacist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1778630400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1778630400000",
"number": "1265360747",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "925 E MCDOWELL RD",
"city": "PHOENIX",
"state": "AZ",
"postal_code": "850062502",
"telephone_number": "602-521-3700"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "925 E MCDOWELL RD",
"city": "PHOENIX",
"state": "AZ",
"postal_code": "850062502",
"telephone_number": "602-521-3700"
}
],
"practiceLocations": [],
"basic": {
"last_name": "PHELPS",
"first_name": "WALTER",
"credential": "PHARMD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2026-05-13",
"last_updated": "2026-05-13",
"certification_date": "2026-05-13",
"status": "A"
},
"taxonomies": [
{
"code": "1835X0200X",
"taxonomy_group": "",
"desc": "Pharmacist, Oncology",
"state": "AZ",
"license": "S023864",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"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 May 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.