NPPES file of Aug 9, 2026

Mary Therese Schneider, M.D.

Obstetrics & Gynecology Physician · Sioux City, IA

Mary Therese Schneider, M.D. is an obstetrics & gynecology physician with a practice address in Sioux City, Iowa, and NPI 1306838198, issued on Aug 17, 2005. Check the license (Iowa 34022, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306838198
Name
Mary Therese Schneider
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
34022 IA
Self-reported in NPPES; status is on the state search
Practice location
1000 Jackson St, Sioux City, IA 51105
Phone
(712) 252-0501
Enumerated
Aug 17, 2005
Record last updated
Aug 4, 2022
Fax
(712) 252-2024
Medicaid IDs
0235382 IA
6200940 SD
Medicare enrollment
Enrolled (PECOS I20100513000766); accepts Medicare assignment
Medical or professional school
Sanford School Of Medicine Of University Of South Dakota, 1997
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 1000 Jackson St

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

  1. Rena Avery, D.O.Obstetrics & Gynecology Physician1497043343
  2. Carole Dwyer, A.R.N.P.Women's Health Nurse Practitioner1548252331
  3. Kate Ferrell, MDObstetrics Physician1730717968
  4. Kevin Hamburger, M.D.Obstetrics & Gynecology Physician1114919909
  5. Danielle Hay, D.OObstetrics & Gynecology Physician1013228774
  6. Erin Hytrek, DPTPhysical Therapist1134271240

Verify Mary Therese Schneider in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 34022
    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
Open the Iowa license search

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28% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

118 Medicare Part D claims for 45 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. Mary Schneider118
  2. Specialty average165

Most prescribed

  1. Premarin17 claims
  2. Estradiol11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Siouxland Women's Health Care PCSioux City, IA

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

Mary Therese Schneider among 339 obstetrics & gynecology physician records in Iowa

Mary Therese Schneider, M.D. is one of 339 obstetrics & gynecology physician records with a practice address in Iowa. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 75% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated1997 · median 2006 among the 188 with a school on file
  • Record last updated2022 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Iowa

There are 339 obstetrics & gynecology physician records in Iowa.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Rena Avery, D.O.Sioux City, IA 511051497043343
  2. Kevin Hamburger, M.D.Sioux City, IA 511051114919909
  3. Danielle Hay, D.OSioux City, IA 511051013228774
  4. Richard Ratino, M.D.Sioux City, IA 511051972595866
  5. Dean Spartz, M.D.Sioux City, IA 511051407848393
  6. William Vereen, D.O.Sioux City, IA 511051679565568
  7. Angela Aldrich, M.D.Sioux City, IA 511041679570576
  8. Hannah Dewald, M.D.Sioux City, IA 511041790040269

Common questions

What is Mary Therese Schneider, M.D.'s NPI number?

Mary Therese Schneider, M.D.'s National Provider Identifier (NPI) is 1306838198, issued on Aug 17, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mary Therese Schneider, M.D. located?

The NPPES record lists a practice address at 1000 Jackson St, Sioux City, IA, 51105. Phone: (712) 252-0501. Providers update this record themselves, so call before visiting.

How can I verify Mary Therese Schneider, M.D.'s license?

NPPES lists Iowa license number 34022, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mary Therese Schneider, M.D. prescribe under Medicare Part D?

In 2024, Mary Therese Schneider, M.D. had 118 Medicare Part D claims for 45 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions 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.