NPPES file of Aug 9, 2026

William Drier, PH.D.; LISW

Social Worker · Waterloo, IA

William Drier, PH.D.; LISW is a social worker with a practice address in Waterloo, Iowa, and NPI 1023400223, issued on Feb 24, 2015. Check the license (Iowa 077437, as entered in NPPES) with the Iowa board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1023400223
Name
William Drier
Credential
PH.D.; LISW
Primary taxonomy
Social Worker 104100000X
License numbers
077437 IA
150.015.162 IL
Self-reported in NPPES; status is on the state search
Practice location
3356 Kimball Ave, Waterloo, IA 50702
Phone
(319) 214-2159
Enumerated
Feb 24, 2015
Record last updated
Nov 1, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20171114000449); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 3356 Kimball Ave

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

  1. Mary Crawford, MAAddiction (Substance Use Disorder) Counselor1619046406

Verify William Drier in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 077437
    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 Iowa 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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William Drier among 1,157 social worker records in Iowa

William Drier, PH.D.; LISW is one of 1,157 social worker records with a practice address in Iowa. 13% 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 2015, is newer than 39% of them.

  • NPI issued2015 · 39% of these records are older, 57% newer
  • In a Medicare fileNo · 13% of these records are
  • In the CMS Doctors and Clinicians fileYes · 18% of these records are
  • Graduated1984 · median 2012 among the 207 with a school on file
  • Record last updated2017 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

41 social worker records list a practice address in Waterloo

They are 41 of the 1,512 NPPES records with a practice address in Waterloo, and 1,157 social worker records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 social worker records with the nearest ZIP codes

  1. Amy Bonebrake, LMSW, CADC, SAPWaterloo, IA 507021316467061
  2. Mervin Carnahan, MSWWaterloo, IA 507021407884331
  3. Desiree Cunningham-Loggins, LISWWaterloo, IA 507021063738086
  4. Jenna Garcia, LMSWWaterloo, IA 507021285577973
  5. Danielle Hansen, LMSWWaterloo, IA 507021598204075
  6. Carollyn Hartsfield, MSWWaterloo, IA 507021639115108
  7. Gabriella Haywood, LMSWWaterloo, IA 507021124953963
  8. Alyssa McDermott, LMSWWaterloo, IA 507021619545209

Common questions

What is William Drier, PH.D.; LISW's NPI number?

William Drier, PH.D.; LISW's National Provider Identifier (NPI) is 1023400223, issued on Feb 24, 2015. An NPI identifies a provider in billing; it is not a license.

Where is William Drier, PH.D.; LISW located?

The NPPES record lists a practice address at 3356 Kimball Ave, Waterloo, IA, 50702. Phone: (319) 214-2159. Providers update this record themselves, so call before visiting.

How can I verify William Drier, PH.D.; LISW's license?

NPPES lists Iowa license number 077437, as entered by the provider. Search the Iowa 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.