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

William E Holder, FNP-C

Individual provider Family Nurse Practitioner · NPI 1205178738

William E Holder, FNP-C is a Nurse Practitioner in Mesa, Arizona. Qualified in 2013, 13 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
13
Licensed in
AZ
In the registry since
2013
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

1919 E McKellips Rd Ste 103
Mesa, AZ 85203-2855
Phone: (480) 961-2365
Fax: (480) 961-2382
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP4885 (AZ)

Record details

NPI number1205178738
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP-C
Sole proprietorYes
NPI enumeratedMarch 22, 2013
Last updated in NPPESJuly 10, 2026
Certification dateJuly 10, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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