Mary Jean Witherall, LMSW
Social Worker · Mason City, IA
Mary Jean Witherall, LMSW is a social worker with a practice address in Mason City, Iowa, and NPI 1750398376, issued on Aug 3, 2006. Check the license (Iowa 06229, 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.
- Name
- Mary Jean Witherall
- Credential
- LMSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- 06229 IA
Self-reported in NPPES; status is on the state search - Practice location
- 235 S Eisenhower Ave, Mason City, IA 50401
- Phone
- (641) 424-2075
- Enumerated
- Aug 3, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (641) 424-9555
- Entity
- Type 1 · individual
Also registered at 235 S Eisenhower Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janice Albright, LBSWSocial Worker1972616225
- Shelby Allen-Benitz, RN BC ARNPPsychiatric/Mental Health Nurse Practitioner1174759666
- Lisa Biebesheimer, RNRegistered Nurse1164739959
- Lois Carlson, RNRegistered Nurse1831557347
- Daniel Courtney, PHDPsychologist1528075157
- Michael Dobbin, PSYDPsychologist1801129176
Verify Mary Jean Witherall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 06229Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34 social worker records list a practice address in Mason City
They are 34 of the 866 NPPES records with a practice address in Mason City, and 1,157 social worker records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 34 in Mason City → All 1,157 in Iowa → Every provider in Mason City →
Other social worker records in Iowa
- Marshall Abbe, LISWWest Des Moines, IA1023581451
- Amy Abels, MSWMason City, IA1447644463
- Melanie Acklin, LISWWest Des Moines, IA1538265525
- Samantha AdamsDavenport, IA1528665494
- Kaylea Adkins, LMSWOttumwa, IA1992559371
- Rebekah Adolphson, LMSWCedar Rapids, IA1255106241
- Arusha Afzal, LMSWWaverly, IA1336832435
- Julieta Aguilera-PerezMarshalltown, IA1932073244
- Josie Aguiniga, LMSWLe Mars, IA1043997422
- Brandon Akes, LISWAnkeny, IA1912579269
Common questions
What is Mary Jean Witherall, LMSW's NPI number?
Mary Jean Witherall, LMSW's National Provider Identifier (NPI) is 1750398376, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Jean Witherall, LMSW located?
The NPPES record lists a practice address at 235 S Eisenhower Ave, Mason City, IA, 50401. Phone: (641) 424-2075. Providers update this record themselves, so call before visiting.
How can I verify Mary Jean Witherall, LMSW's license?
NPPES lists Iowa license number 06229, 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.