NPPES file of Aug 9, 2026

Iona Hutton-Johnson, M.S., CCC-SLP

Speech-Language Pathologist · Towson, MD

Iona Hutton-Johnson, M.S., CCC-SLP is a speech-language pathologist with a practice address in Towson, Maryland, and NPI 1730208034, issued on Mar 28, 2007. Check the license (Maryland 01393, as entered in NPPES) with the Maryland 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
1730208034
Name
Iona Hutton-Johnson
Credential
M.S., CCC-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
01393 MD
Self-reported in NPPES; status is on the state search
Practice location
Towson University Speech Language Hearing Ctr, Towson, MD 21252
Phone
(410) 704-3095
Enumerated
Mar 28, 2007
Record last updated
May 13, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(410) 704-6303
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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8 nearest speech-language pathologist records → All 4,509 in Maryland → Look up another NPI →

Also registered at Towson University Speech Language Hearing Ctr

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

  1. Thomas Coccagna, M.S., CCC-AAudiologist1730200676
  2. Donna Coons, M.S., CCC-SLPSpeech-Language Pathologist1043339377
  3. Karen Day, M.S., CCC-SLPSpeech-Language Pathologist1043339369
  4. Pamela Difilippo, M.S., CCC-SLPSpeech-Language Pathologist1942421243
  5. Sheryl Lasson, M.S., CCC-SLPSpeech-Language Pathologist1245359298
  6. Mark Pellowski, PH.D., CCC-SLPSpeech-Language Pathologist1144341058

Verify Iona Hutton-Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 01393    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 Maryland license search

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Iona Hutton-Johnson among 4,509 speech-language pathologist records in Maryland

Iona Hutton-Johnson, M.S., CCC-SLP is one of 4,509 speech-language pathologist records with a practice address in Maryland. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 3% of them.

  • NPI issued2007 · 3% of these records are older, 90% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 4% of these records are
  • Record last updated2013 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 235Z00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

240 speech-language pathologist records list a practice address in Towson

They are 240 of the 3,721 NPPES records with a practice address in Towson, and 4,509 speech-language pathologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4,509 in Maryland → Every provider in Towson → Speech-Language Pathologist nationwide →

The 8 speech-language pathologist records with the nearest ZIP codes

  1. Donna Coons, M.S., CCC-SLPTowson, MD 212521043339377
  2. Karen Day, M.S., CCC-SLPTowson, MD 212521043339369
  3. Pamela Difilippo, M.S., CCC-SLPTowson, MD 212521942421243
  4. Debra Henninger, CCC-SLPTowson, MD 212521639307234
  5. Sheryl Lasson, M.S., CCC-SLPTowson, MD 212521245359298
  6. Donna Long, CCC-SLPTowson, MD 212521467680058
  7. Blair MorganTowson, MD 212521538397138
  8. Mark Pellowski, PH.D., CCC-SLPTowson, MD 212521144341058

Common questions

What is Iona Hutton-Johnson, M.S., CCC-SLP's NPI number?

Iona Hutton-Johnson, M.S., CCC-SLP's National Provider Identifier (NPI) is 1730208034, issued on Mar 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Iona Hutton-Johnson, M.S., CCC-SLP located?

The NPPES record lists a practice address at Towson University Speech Language Hearing Ctr, Towson, MD, 21252. Phone: (410) 704-3095. Providers update this record themselves, so call before visiting.

How can I verify Iona Hutton-Johnson, M.S., CCC-SLP's license?

NPPES lists Maryland license number 01393, as entered by the provider. Search the Maryland 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.