Marcia C. Diederich
School Psychologist · Phoenix, AZ
Marcia C. Diederich is a school psychologist with a practice address in Phoenix, Arizona, and NPI 1003067919, issued on Oct 9, 2008. Check the license (Arizona 4074924, as entered in NPPES) with the Arizona board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marcia C. Diederich
- Primary taxonomy
- School Psychologist 103TS0200X
- License number
- 4074924 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 25250 N 35TH Ave, Phoenix, AZ 85083
- Phone
- (623) 445-7100
- Enumerated
- Oct 9, 2008
- Record last updated
- Oct 9, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (623) 445-7180
- Entity
- Type 1 · individual
Also registered at 25250 N 35TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jonica Clarke, RNSchool Registered Nurse1417435835
- Catherine DanzingerSchool Registered Nurse1659548246
- Derek FournierAthletic Trainer1811797020
- Christopher HarmonsonSchool Counselor1407036411
- Debbie HarmonsonSchool Counselor1376723403
- Adrienne JensenSchool Registered Nurse1881329720
Verify Marcia C. Diederich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 4074924Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
School Psychologist providers in Arizona
There are 968 school psychologist records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other school psychologist records in Arizona
- Allyssa AbruzzeseGlendale, AZ1467685115
- Linda Ackert, MAChandler, AZ1457639114
- Esther Acosta, PH.D., NCSPPhoenix, AZ1215155312
- Dominique AcreChandler, AZ1689839649
- William Acton, M.A.Goodyear, AZ1497967723
- Teresa Acuna, PH.D.Phoenix, AZ1114132461
- Lesli Adams, ED.S., NCSPBuckeye, AZ1154475598
- Melissa AdamsMesa, AZ1295458180
- Robert AddyPhoenix, AZ1265663496
- Frances AguilarMaricopa, AZ1023939576
Common questions
What is Marcia C. Diederich's NPI number?
Marcia C. Diederich's National Provider Identifier (NPI) is 1003067919, issued on Oct 9, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marcia C. Diederich located?
The NPPES record lists a practice address at 25250 N 35TH Ave, Phoenix, AZ, 85083. Phone: (623) 445-7100. Providers update this record themselves, so call before visiting.
How can I verify Marcia C. Diederich's license?
NPPES lists Arizona license number 4074924, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.