NPPES file of Aug 9, 2026

John David Thiemann, LCSW

Clinical Social Worker · Las Vegas, NV

John David Thiemann, LCSW is a clinical social worker with a practice address in Las Vegas, Nevada, and NPI 1730985433, issued on Feb 22, 2025. Check the license (Nevada 11896-C, as entered in NPPES) with the Nevada board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1730985433
Name
John David Thiemann
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
11896-C NV
Self-reported in NPPES; status is on the state search
Practice location
3247 S Maryland Pkwy, Las Vegas, NV 89109
Phone
(877) 663-7976
Enumerated
Feb 22, 2025
Record last updated
Feb 22, 2025
Medicare enrollment
Enrolled (PECOS I20250528002765); accepts 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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8 nearest clinical social worker records → All 2,164 in Nevada → Look up another NPI →

Also registered at 3247 S Maryland Pkwy

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

  1. Ruth Bogos, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1164227898
  2. Taneisha Graves, LCSWClinical Social Worker1588099865
  3. Pamela Guerra, APRNPsychiatric/Mental Health Nurse Practitioner1710611314
  4. Karen Lynch, LMFTMarriage & Family Therapist1043373368
  5. Gemechis Petros, APRNPsychiatric/Mental Health Nurse Practitioner1083347033
  6. Christian San PedroPsychiatric/Mental Health Nurse Practitioner1457245995

Verify John David Thiemann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Nevada board licenses this profession
    Search for license 11896-C    Check 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 Nevada license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Optima Change Management, LLCHenderson, NV

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John David Thiemann among 2,164 clinical social worker records in Nevada

John David Thiemann, LCSW is one of 2,164 clinical social worker records with a practice address in Nevada. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 92% of them.

  • NPI issued2025 · 92% of these records are older, 3% newer
  • In a Medicare fileYes · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated2022 · median 2015 among the 404 with a school on file
  • Record last updated2025 · 39% 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 Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,010 clinical social worker records list a practice address in Las Vegas

They are 1,010 of the 65,269 NPPES records with a practice address in Las Vegas, and 2,164 clinical social worker records in Nevada.

All 2,164 in Nevada → Every provider in Las Vegas → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Emily Beck, LMSW, CSW-ILas Vegas, NV 891091962052993
  2. Mallory Daxon, LCSWLas Vegas, NV 891091629720800
  3. Gerald Earl, MSSWLas Vegas, NV 891091013094457
  4. Taneisha Graves, LCSWLas Vegas, NV 891091588099865
  5. Rita HernandezLas Vegas, NV 891091023607058
  6. Velsabet Mojica CisnerosLas Vegas, NV 891091255141685
  7. Lorena Munoz, LCSWLas Vegas, NV 891091811299597
  8. Anna Slowek, LCSWLas Vegas, NV 891091588263768

Common questions

What is John David Thiemann, LCSW's NPI number?

John David Thiemann, LCSW's National Provider Identifier (NPI) is 1730985433, issued on Feb 22, 2025. An NPI identifies a provider in billing; it is not a license.

Where is John David Thiemann, LCSW located?

The NPPES record lists a practice address at 3247 S Maryland Pkwy, Las Vegas, NV, 89109. Phone: (877) 663-7976. Providers update this record themselves, so call before visiting.

How can I verify John David Thiemann, LCSW's license?

NPPES lists Nevada license number 11896-C, as entered by the provider. Search the Nevada 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.