NPPES file of Aug 9, 2026

Alison Duggan Armstrong, MA, CCC-SLP

Speech-Language Pathologist · Phoenix, AZ

Alison Duggan Armstrong, MA, CCC-SLP is a speech-language pathologist with a practice address in Phoenix, Arizona, and NPI 1770701468, issued on Apr 20, 2007. Check the license (Arizona 4322, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770701468
Name
Alison Duggan Armstrong
Credential
MA, CCC-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
4322 AZ
Self-reported in NPPES; status is on the state search
Practice location
20402 N 15TH Ave, Phoenix, AZ 85027
Phone
(623) 445-4951
Enumerated
Apr 20, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
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.
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Also registered at 20402 N 15TH Ave

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

  1. Robert AddySchool Psychologist1265663496
  2. Betsy AllaireLicensed Practical Nurse1780934448
  3. Valerie Andrews-JamesSpeech-Language Pathologist1578997433
  4. Shari BallanceSchool Psychologist1205116522
  5. Christina Beauchamp, CCC-SLPSpeech-Language Pathologist1427482462
  6. Rozanna BenallySpeech-Language Assistant1225351851

Verify Alison Duggan Armstrong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 4322
    Check 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

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934 speech-language pathologist records list a practice address in Phoenix

They are 934 of the 31,399 NPPES records with a practice address in Phoenix, and 4,510 speech-language pathologist records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other speech-language pathologist records in Arizona

  1. Erin Aafedt, MA CCC-SLPFlagstaff, AZ1053325654
  2. Christine AbassiPhoenix, AZ1043057268
  3. Amy Abdai, MS CCCSLPTucson, AZ1538389630
  4. Amanda AbererChandler, AZ1639698855
  5. Courtney AbernathySurprise, AZ1235853961
  6. Carolyn AbrahamPhoenix, AZ1275811176
  7. Judy Abraham, M.S. CCC-SLPChandler, AZ1093968711
  8. Ricki Abrams-SternSurprise, AZ1174951099
  9. Melanie AbshireVail, AZ1750060869
  10. Manuela Acero, SLPAYuma, AZ1114234879

Common questions

What is Alison Duggan Armstrong, MA, CCC-SLP's NPI number?

Alison Duggan Armstrong, MA, CCC-SLP's National Provider Identifier (NPI) is 1770701468, issued on Apr 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alison Duggan Armstrong, MA, CCC-SLP located?

The NPPES record lists a practice address at 20402 N 15TH Ave, Phoenix, AZ, 85027. Phone: (623) 445-4951. Providers update this record themselves, so call before visiting.

How can I verify Alison Duggan Armstrong, MA, CCC-SLP's license?

NPPES lists Arizona license number 4322, 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.