NPPES file of Aug 9, 2026

Ian Nelson-Johnson, PSY.D.

Clinical Psychologist · Madison, WI

Ian Nelson-Johnson, PSY.D. is a clinical psychologist with a practice address in Madison, Wisconsin, and NPI 1598209033, issued on Dec 16, 2016. Check the license with the Wisconsin 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
1598209033
Name
Ian Nelson-Johnson
Credential
PSY.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
092237 IA
Self-reported in NPPES; status is on the state search
Practice location
6649 Odana RD, Madison, WI 53719
Phone
(847) 736-2917
Enumerated
Dec 16, 2016
Record last updated
Apr 26, 2023
Medicare enrollment
Enrolled (PECOS I20240423001888); may accept 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 6649 Odana RD

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

  1. Elizabeth Baehnk, FNPFamily Nurse Practitioner1972215465
  2. Eric Phillippi, MDFamily Medicine Physician1568872752

Verify Ian Nelson-Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin 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 Wisconsin license search

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Ian Nelson-Johnson among 728 clinical psychologist records in Wisconsin

Ian Nelson-Johnson, PSY.D. is one of 728 clinical psychologist records with a practice address in Wisconsin. 27% 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 2016, is newer than 70% of them.

  • NPI issued2016 · 70% of these records are older, 26% newer
  • In a Medicare fileNo · 27% of these records are
  • In the CMS Doctors and Clinicians fileYes · 34% of these records are
  • Graduated2016 · median 2009 among the 244 with a school on file
  • Record last updated2023 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in Wisconsin

There are 728 clinical psychologist records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical psychologist records with the nearest ZIP codes

  1. Keri Brown, PH.D.Madison, WI 537191013209352
  2. Dennis Christoffersen, PSYDMadison, WI 537191881716447
  3. Kenneth Clark, PH.D.Madison, WI 537191942254560
  4. Linda Dunaway, PHDFitchburg, WI 537191326020553
  5. Richard Elwood, PHDMadison, WI 537191972541027
  6. Bruce Erdmann, PH.D.Madison, WI 537191992721997
  7. Christopher Gioia, PH.D.Madison, WI 537191689961294
  8. Gordon Herz, PHDMadison, WI 537191053314344

Common questions

What is Ian Nelson-Johnson, PSY.D.'s NPI number?

Ian Nelson-Johnson, PSY.D.'s National Provider Identifier (NPI) is 1598209033, issued on Dec 16, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Ian Nelson-Johnson, PSY.D. located?

The NPPES record lists a practice address at 6649 Odana RD, Madison, WI, 53719. Phone: (847) 736-2917. Providers update this record themselves, so call before visiting.

How can I verify Ian Nelson-Johnson, PSY.D.'s license?

Search the Wisconsin 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.