Mark C. Johnson, PHD
Clinical Psychologist · White River Junction, VT
Mark C. Johnson, PHD is a clinical psychologist with a practice address in White River Junction, Vermont, and NPI 1801961214, issued on Nov 21, 2006. Check the license (Vermont 280, as entered in NPPES) with the Vermont board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark C. Johnson
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 280 VT
Self-reported in NPPES; status is on the state search - Practice location
- 2456 Christian Street, White River Junction, VT 05001
- Phone
- (802) 296-3030
- Enumerated
- Nov 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (802) 296-8407
- Medicaid ID
- 1002039 VT
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 311 in Vermont → Look up another NPI →
Verify Mark C. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Vermont board licenses this profession
Search for license 280Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark C. Johnson among 311 clinical psychologist records in Vermont
Mark C. Johnson, PHD is one of 311 clinical psychologist records with a practice address in Vermont. 9% 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 63% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 35% of these records are
- Record last updated2007 · 74% 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 Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 clinical psychologist records list a practice address in White River Junction
They are 19 of the 481 NPPES records with a practice address in White River Junction, and 311 clinical psychologist records in Vermont. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 311 in Vermont → Every provider in White River Junction → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Mark Detzer, PHDWhite River Junction, VT 050011215032214
- David Drazin, PHDWhite River Junction, VT 050011740397405
- Sarah Fagan, PSYDWhite River Junction, VT 050011760213789
- William Ketterer, PSYDWhite River Junction, VT 050011588941090
- Suzanne SitkowskiWhite River Junction, VT 050011619688264
- Richard Wren, PH.D.White River Junction, VT 050011962505925
- Casey AllingtonWhite River Junction, VT 050091346774684
- Erin Barnett, PH. D.White River Junction, VT 050091811204316
Common questions
What is Mark C. Johnson, PHD's NPI number?
Mark C. Johnson, PHD's National Provider Identifier (NPI) is 1801961214, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark C. Johnson, PHD located?
The NPPES record lists a practice address at 2456 Christian Street, White River Junction, VT, 05001. Phone: (802) 296-3030. Providers update this record themselves, so call before visiting.
How can I verify Mark C. Johnson, PHD's license?
NPPES lists Vermont license number 280, as entered by the provider. Search the Vermont 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.