Mark Eldon Bontreger, PSYCHOLOGIST
Clinical Psychologist · Watertown, SD
Mark Eldon Bontreger, PSYCHOLOGIST is a clinical psychologist with a practice address in Watertown, South Dakota, and NPI 1861505190, issued on Aug 17, 2006. Check the license (South Dakota 364, as entered in NPPES) with the South Dakota board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Eldon Bontreger
- Credential
- PSYCHOLOGIST
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 364 SD
Self-reported in NPPES; status is on the state search - Practice location
- 525 5TH St SE, Watertown, SD 57201
- Phone
- (605) 882-0800
- Enumerated
- Aug 17, 2006
- Record last updated
- Nov 2, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (605) 882-0861
- Medicaid ID
- 6551792 SD
- Medicare enrollment
- Enrolled (PECOS I20040414001555); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 103 in South Dakota → Look up another NPI →
Verify Mark Eldon Bontreger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license 364Check 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 Eldon Bontreger among 103 clinical psychologist records in South Dakota
Mark Eldon Bontreger, PSYCHOLOGIST is one of 103 clinical psychologist records with a practice address in South Dakota. 17% 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, 55% newer
- In a Medicare fileNo · 17% of these records are
- In the CMS Doctors and Clinicians fileYes · 31% of these records are
- Graduated1995 · median 2003 among the 32 with a school on file
- Record last updated2007 · 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 103TC0700X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in South Dakota
There are 103 clinical psychologist records in South Dakota. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 103 in South Dakota → Every provider in Watertown → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Wendy Bailey, PH.D.Milbank, SD 572521053474650
- Jaime Hudson, PH.D.Sioux Falls, SD 571171487946984
- Stacy Sommervold, PSY.D.Sioux Falls, SD 571101780372847
- Robin Carter-Visscher, PH.D.Sioux Falls, SD 571081902122989
- Trisha Gaudig, PHDSioux Falls, SD 571081821524836
- Lezlee Greguson-Lund, PHDSioux Falls, SD 571081518128248
- David Hylland, ED.D.Sioux Falls, SD 571081962475483
- Wallace Jackmon, PHDSioux Falls, SD 571081427020957
Common questions
What is Mark Eldon Bontreger, PSYCHOLOGIST's NPI number?
Mark Eldon Bontreger, PSYCHOLOGIST's National Provider Identifier (NPI) is 1861505190, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Eldon Bontreger, PSYCHOLOGIST located?
The NPPES record lists a practice address at 525 5TH St SE, Watertown, SD, 57201. Phone: (605) 882-0800. Providers update this record themselves, so call before visiting.
How can I verify Mark Eldon Bontreger, PSYCHOLOGIST's license?
NPPES lists South Dakota license number 364, as entered by the provider. Search the South Dakota 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.