NPPES file of Aug 9, 2026

Melissa S. Johnson, RRT

Registered Respiratory Therapist · Tucson, AZ

Melissa S. Johnson, RRT is a registered respiratory therapist with a practice address in Tucson, Arizona, and NPI 1720255755, issued on May 8, 2008. Check the license (Arizona 006425, 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
1720255755
Name
Melissa S. Johnson
Credential
RRT
Primary taxonomy
Registered Respiratory Therapist 227900000X
License number
006425 AZ
Self-reported in NPPES; status is on the state search
Practice location
3601 S 6TH Ave, Tucson, AZ 85723
Phone
(520) 792-1450
Enumerated
May 8, 2008
Record last updated
May 8, 2008 (not updated in 18 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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8 nearest registered respiratory therapist records → All 194 in Arizona → Look up another NPI →

Also registered at 3601 S 6TH Ave

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

  1. Elizabeth Acree, LMSWSocial Worker1215651336
  2. Emily AdamsClinical Social Worker1932694429
  3. Marion Adams, N.P.Gerontology Nurse Practitioner1174633523
  4. Sulaiman AdejumobiSocial Worker1619743481
  5. Rebecca Adiutori Magnotto, RNCPsychiatric/Mental Health Registered Nurse1033221825
  6. Corinne Adkins, RRTRegistered Respiratory Therapist1427374602

Verify Melissa S. Johnson 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 006425    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

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

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Melissa S. Johnson among 194 registered respiratory therapist records in Arizona

Melissa S. Johnson, RRT is one of 194 registered respiratory therapist records with a practice address in Arizona. 0% 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 2008, is newer than 6% of them.

  • NPI issued2008 · 6% of these records are older, 90% newer
  • In a Medicare fileNo · 0% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2008 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 227900000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Respiratory Therapist providers in Arizona

There are 194 registered respiratory therapist records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 194 in Arizona → Every provider in Tucson → Registered Respiratory Therapist nationwide →

The 8 registered respiratory therapist records with the nearest ZIP codes

  1. Corinne Adkins, RRTTucson, AZ 857231427374602
  2. Jessica Atilano, RRTTucson, AZ 857231740410372
  3. Wendy Cushing, RRTTucson, AZ 857231528202496
  4. Jeri Hoyack, R.T.Tucson, AZ 857231659568335
  5. Clarissa Hubbard, RRTTucson, AZ 857231558683417
  6. Gary Johnson, RRTTucson, AZ 857231265614028
  7. Heather Maller, RRTTucson, AZ 857231194056606
  8. Sally Newhall, MHA/INF, RRTTucson, AZ 857231851549315

Common questions

What is Melissa S. Johnson, RRT's NPI number?

Melissa S. Johnson, RRT's National Provider Identifier (NPI) is 1720255755, issued on May 8, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Melissa S. Johnson, RRT located?

The NPPES record lists a practice address at 3601 S 6TH Ave, Tucson, AZ, 85723. Phone: (520) 792-1450. Providers update this record themselves, so call before visiting.

How can I verify Melissa S. Johnson, RRT's license?

NPPES lists Arizona license number 006425, 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.

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.