Mark R. Steenwyk, PSYD
Clinical Psychologist · Lafayette, IN
Mark R. Steenwyk, PSYD is a clinical psychologist with a practice address in Lafayette, Indiana, and NPI 1821322116, issued on Sep 21, 2009. Check the license (Indiana 20042336A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark R. Steenwyk
- Credential
- PSYD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 20042336A IN
Self-reported in NPPES; status is on the state search - Practice location
- 610 Main St, Lafayette, IN 47901
- Phone
- (765) 428-2249
- Enumerated
- Sep 21, 2009
- Record last updated
- Sep 21, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (765) 742-4196
- Medicare enrollment
- Enrolled (PECOS I20110803000765); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 838 in Indiana → Look up another NPI →
Also registered at 610 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Adams, LCSWClinical Social Worker1346528973
- Elizabeth Akey, PHDClinical Psychologist1124176631
- A AnthonyAddiction (Substance Use Disorder) Counselor1467579649
- James Ascough, PHDClinical Psychologist1285780924
- Dennis BanterClinical Social Worker1962526475
- Lindsey Becker, PMHNPFamily Nurse Practitioner1366998346
Verify Mark R. Steenwyk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 20042336ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Pine Rest Christian Mental Health ServicesGrand Rapids, MI · Psychiatric
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Mark R. Steenwyk among 838 clinical psychologist records in Indiana
Mark R. Steenwyk, PSYD is one of 838 clinical psychologist records with a practice address in Indiana. 20% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 20% of these records are
- In the CMS Doctors and Clinicians fileYes · 26% of these records are
- Graduated2008 · median 2006 among the 222 with a school on file
- Record last updated2009 · 62% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in Indiana
There are 838 clinical psychologist records in Indiana.
All 838 in Indiana → Every provider in Lafayette → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Elizabeth Akey, PHDLafayette, IN 479011124176631
- James Ascough, PHDLafayette, IN 479011285780924
- Stephanie Copeland, PH.D.Lafayette, IN 479011275999187
- Gregory Waitkoff, PSY.D.Lafayette, IN 479011295071165
- Shay Daley, PH.D., HSPPLafayette, IN 479041558587311
- Gayle Iwamasa, PH.D., HSPPLafayette, IN 479041861589327
- Tammy LesherLafayette, IN 479041497412068
- Pamela McCombs-Matlock, PSYDLafayette, IN 479041912367590
Common questions
What is Mark R. Steenwyk, PSYD's NPI number?
Mark R. Steenwyk, PSYD's National Provider Identifier (NPI) is 1821322116, issued on Sep 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mark R. Steenwyk, PSYD located?
The NPPES record lists a practice address at 610 Main St, Lafayette, IN, 47901. Phone: (765) 428-2249. Providers update this record themselves, so call before visiting.
How can I verify Mark R. Steenwyk, PSYD's license?
NPPES lists Indiana license number 20042336A, as entered by the provider. Search the Indiana 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. Medicare files from data.cms.gov. 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.