Lauren Marie Ivy Sieja, LCSW
Clinical Social Worker · Nacogdoches, TX
Lauren Marie Ivy Sieja, LCSW is a clinical social worker with a practice address in Nacogdoches, Texas, and NPI 1629645155, issued on Jun 3, 2021. Check the license (Texas 59857, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lauren Marie Ivy Sieja
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 59857 TX
Self-reported in NPPES; status is on the state search - Practice location
- 518 E Hospital St, Nacogdoches, TX 75961
- Phone
- (936) 645-1090
- Enumerated
- Jun 3, 2021
- Record last updated
- Jun 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210811000421); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 11,683 in Texas → Look up another NPI →
Also registered at 518 E Hospital St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lisa McClearyPsychologist1528689593
- Sydney Register, PSY.D.Clinical Psychologist1467638825
Verify Lauren Marie Ivy Sieja in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 59857Check 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
- Georgetown Psychotherapy, PLLCNacogdoches, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lauren Marie Ivy Sieja among 11,683 clinical social worker records in Texas
Lauren Marie Ivy Sieja, LCSW is one of 11,683 clinical social worker records with a practice address in Texas. 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 2021, is newer than 61% of them.
- NPI issued2021 · 61% of these records are older, 33% newer
- In a Medicare fileYes · 12% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2014 · median 2012 among the 2,264 with a school on file
- Record last updated2021 · 45% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 clinical social worker records list a practice address in Nacogdoches
They are 21 of the 715 NPPES records with a practice address in Nacogdoches, and 11,683 clinical social worker records in Texas.
All 11,683 in Texas → Every provider in Nacogdoches → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Patsy Agpalza, LCSWNacogdoches, TX 759611649841420
- Haskell Cooper, PHD, LCSWNacogdoches, TX 759611437572443
- Anna Donihoo, LCSWNacogdoches, TX 759611508256827
- David Espinosa, LCSWNacogdoches, TX 759611780058719
- Roger McNellie, PH.D.,MSSW,LCSW,LPCNacogdoches, TX 759611306946652
- Holly Randall, LCSWNacogdoches, TX 759611649518028
- Vanessa Saucedo, LCSWNacogdoches, TX 759611447143029
- Charlene Reed, LCSWNacogdoches, TX 759631275257123
Common questions
What is Lauren Marie Ivy Sieja, LCSW's NPI number?
Lauren Marie Ivy Sieja, LCSW's National Provider Identifier (NPI) is 1629645155, issued on Jun 3, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Marie Ivy Sieja, LCSW located?
The NPPES record lists a practice address at 518 E Hospital St, Nacogdoches, TX, 75961. Phone: (936) 645-1090. Providers update this record themselves, so call before visiting.
How can I verify Lauren Marie Ivy Sieja, LCSW's license?
NPPES lists Texas license number 59857, as entered by the provider. Search the Texas 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.