Mark Van Steenberg, LCSW
Clinical Social Worker · Louisville, CO
Mark Van Steenberg, LCSW is a clinical social worker with a practice address in Louisville, Colorado, and NPI 1093101602, issued on Apr 9, 2015. Check the license (Colorado CSW.09927520, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Van Steenberg
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- CSW.09927520 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1826 Steel Street, Louisville, CO 80027
- Phone
- (720) 460-7660
- Enumerated
- Apr 9, 2015
- Record last updated
- Aug 12, 2022
- Fax
- (303) 648-6686
- Medicare enrollment
- Enrolled (PECOS I20250923002795); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 7,356 in Colorado → Look up another NPI →
Verify Mark Van Steenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license CSW.09927520Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sondermind Provider Network LLCRidgeland, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Van Steenberg among 7,356 clinical social worker records in Colorado
Mark Van Steenberg, LCSW is one of 7,356 clinical social worker records with a practice address in Colorado. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 40% of them.
- NPI issued2015 · 40% of these records are older, 56% newer
- In a Medicare fileYes · 14% of these records are
- In the CMS Doctors and Clinicians fileYes · 21% of these records are
- Graduated2014 · median 2014 among the 1,575 with a school on file
- Record last updated2022 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 clinical social worker records list a practice address in Louisville
They are 36 of the 785 NPPES records with a practice address in Louisville, and 7,356 clinical social worker records in Colorado.
All 7,356 in Colorado → Every provider in Louisville → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Constance Frank, MSW LCSWLouisville, CO 800271457528903
- Elizabeth Graybill, LCSWSuperior, CO 800271386954410
- Sara Greenberg, MSW, LCSWLouisville, CO 800271518114198
- Jessica Guenther, LCSWLouisville, CO 800271891944328
- David Kalis, LCSW. PHDLouisville, CO 800271164638417
- Andrea Kareus, L.C.S.W.Louisville, CO 800271922016518
- Kathleen Lameiro-Dawson, L.C.S.W.Louisville, CO 800271073509501
- Helene Mentzel, MSW, LCSWLouisville, CO 800271043404320
Common questions
What is Mark Van Steenberg, LCSW's NPI number?
Mark Van Steenberg, LCSW's National Provider Identifier (NPI) is 1093101602, issued on Apr 9, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mark Van Steenberg, LCSW located?
The NPPES record lists a practice address at 1826 Steel Street, Louisville, CO, 80027. Phone: (720) 460-7660. Providers update this record themselves, so call before visiting.
How can I verify Mark Van Steenberg, LCSW's license?
NPPES lists Colorado license number CSW.09927520, as entered by the provider. Search the Colorado 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.