Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William B Castleberry, ARNP

Individual provider Nurse Practitioner · NPI 1558495424

William B Castleberry, ARNP is a Nurse Practitioner in Medford, Oregon. Licensed in New Mexico, Oregon and Washington. Registered with an NPI since 2007.

Licensed in
NM, OR, WA
In the registry since
2007
Specialties on file
4
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

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Practice location Address checks out

1411 E McAndrews Rd
Medford, OR 97504-6107
Phone: (541) 773-1435
Fax: (541) 858-6828
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 201708669NP-PP (OR)
Nurse Practitioner Taxonomy 363L00000X · Licence CNP-02428 (NM)
Nurse Practitioner Taxonomy 363L00000X · Licence AP60084651 (WA)
Critical Care Medicine Clinical Nurse Specialist Taxonomy 364SC0200X · Licence AP60084651 (WA)

Record details

NPI number1558495424
Entity typeIndividual (Type 1)
GenderMale
Credentials ARNP
Sole proprietorNo
NPI enumeratedMarch 15, 2007
Last updated in NPPESOctober 28, 2022
Certification dateOctober 28, 2022
Mailing address1411 E McAndrews Rd, Medford, OR 97504-6107

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