NPPES file of Aug 9, 2026

Margaret I. Ronstadt, PH.D.

Psychologist · Tucson, AZ

Margaret I. Ronstadt, PH.D. is a psychologist with a practice address in Tucson, Arizona, and NPI 1528057015, issued on Oct 18, 2005. Check the license (Arizona PHD460, 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
1528057015
Name
Margaret I. Ronstadt
Credential
PH.D.
Primary taxonomy
Psychologist 103T00000X
License number
PHD460 AZ
Self-reported in NPPES; status is on the state search
Practice location
800 N Swan RD, Tucson, AZ 85711
Phone
(520) 296-0355
Enumerated
Oct 18, 2005
Record last updated
Apr 23, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(520) 320-1234
Medicare enrollment
Enrolled (PECOS I20051128000083); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 800 N Swan RD

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

  1. Theresa Cisler, DOGeneral Practice Physician1356495899
  2. Frances Manzo, MA, MS, CCC-SLPSpeech-Language Pathologist1295841211
  3. Dorothy Martin, LCSWClinical Social Worker1174656433
  4. Truda Stransky, LCSWClinical Social Worker1679549455

Verify Margaret I. Ronstadt 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 PHD460
    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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Margaret I. Ronstadt among 723 psychologist records in Arizona

Margaret I. Ronstadt, PH.D. is one of 723 psychologist records with a practice address in Arizona. 7% 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 96% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 16% of these records are
  • Graduated1975 · median 2002 among the 117 with a school on file
  • Record last updated2012 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychologist providers in Arizona

There are 723 psychologist records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 psychologist records with the nearest ZIP codes

  1. Anita Adams, PHDTucson, AZ 857111699652032
  2. Michael Berren, PH.D.Tucson, AZ 857111457647851
  3. Charles Briles, PHDTucson, AZ 857111508917279
  4. Leonard Cabianca, PHDTucson, AZ 857111659436574
  5. Kevin Flanagan, PHDTucson, AZ 857111528123163
  6. Jennifer Krug, PHDTucson, AZ 857111972973733
  7. Rebecca McReynolds, PH.D.Tucson, AZ 857111982758074
  8. Katherine Norgard, PH.D.Tucson, AZ 857111699923664

Common questions

What is Margaret I. Ronstadt, PH.D.'s NPI number?

Margaret I. Ronstadt, PH.D.'s National Provider Identifier (NPI) is 1528057015, issued on Oct 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Margaret I. Ronstadt, PH.D. located?

The NPPES record lists a practice address at 800 N Swan RD, Tucson, AZ, 85711. Phone: (520) 296-0355. Providers update this record themselves, so call before visiting.

How can I verify Margaret I. Ronstadt, PH.D.'s license?

NPPES lists Arizona license number PHD460, 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.