Registry data as of Aug 27, 2026

Katharine Defer, LAC

Counselor · Mesa, AZ

Katharine Defer, LAC is a counselor with a practice address in Mesa, Arizona, and NPI 1588431027, issued on Dec 5, 2023. Check the license with the Arizona board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1588431027
Name
Katharine Defer
Credential
LAC
Primary taxonomy
Counselor 101Y00000X
Practice location
6811 E Superstition Springs Blvd, Mesa, AZ 85209
Phone
(623) 570-2859
Enumerated
Dec 5, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 6811 E Superstition Springs Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mehak Akhter, MDInternal Medicine Physician1720609852
  2. Connie Catron, M.D.Family Medicine Physician1255433231
  3. Kevin Dicks, PHARM. D.Pharmacist1558661637
  4. Laura Edwards, NPFamily Nurse Practitioner1467894287
  5. Mallory Farah, PHARMDPharmacist1972759660
  6. Bassam Hattab, M.D.Internal Medicine Physician1023420189

Verify Katharine Defer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

137 counselor records list a Mesa practice address

They are 137 of the 9,151 NPPES records with a Mesa practice address, and 1,330 counselor records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 137 in Mesa → All 1,330 in Arizona → Every provider in Mesa →

Other counselor records in Arizona

  1. Dawn Abbott, MAKingman, AZ1184612442
  2. Paul Abdi, MSPhoenix, AZ1366921249
  3. Ashley AbeytiaEl Mirage, AZ1679392922
  4. Kristen Ables, LACPhoenix, AZ1396488391
  5. Lorraine AchesonFlagstaff, AZ1639318702
  6. Sarah AchuffPhoenix, AZ1073430898
  7. Jane Ackerley, DNPTucson, AZ1588868921
  8. Juanita Adams, LPCGilbert, AZ1538271317
  9. Lauren AdamsGlendale, AZ1144051285
  10. Megan Addis, M.ED., LAC, NCCTucson, AZ1487916714

Common questions

What is Katharine Defer, LAC's NPI number?

Katharine Defer, LAC's National Provider Identifier (NPI) is 1588431027, issued on Dec 5, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Katharine Defer, LAC located?

The NPPES record lists a practice address at 6811 E Superstition Springs Blvd, Mesa, AZ, 85209. Phone: (623) 570-2859. Providers update this record themselves, so call before visiting.

How can I verify Katharine Defer, LAC's license?

Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.