Registry data as of Aug 27, 2026

Jennifer Maschmann, MD

Obstetrics & Gynecology Physician · Spring Valley, IL

Jennifer Maschmann, MD is an obstetrics & gynecology physician with a practice address in Spring Valley, Illinois, and NPI 1023021433, issued on Aug 15, 2006. Check the license (Illinois 036108815, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1023021433
Name
Jennifer Maschmann
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
036108815 IL
Self-reported in NPPES; status is on the state search
Practice location
600 E 1St St, Spring Valley, IL 61362
Phone
(815) 663-2300
Enumerated
Aug 15, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 600 E 1St St

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

  1. Michael Arkins, R.PH.Pharmacist1881724839
  2. Elizabeth Baker, MS, RD, LDNRegistered Dietitian1427307974
  3. Jessica Brown, RDRegistered Dietitian1245838176
  4. Marilyn Csernus, LD,CDE,MS,RDNutrition Education Nutritionist1093984932
  5. Geri Dew, R.D., LDNRegistered Dietitian1659609048
  6. Christopher Differding, PA-CPhysician Assistant1295002715

Verify Jennifer Maschmann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036108815
    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 Illinois 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.

9% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

172 Medicare Part D claims for 53 beneficiaries, against an average of 188 among the 27,363 providers of this specialty who prescribed in Part D.

  1. Jennifer Maschmann172
  2. Specialty average188

Most prescribed

  1. Estradiol56 claims
  2. Sprintec18 claims
  3. Zolpidem Tartrate14 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.

Industry payments in 2024: $87.91

2 payments, mostly food and beverage; the largest payer was Astellas Pharma US Inc. The 20,757 providers of this specialty with any payment received $1,147.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer Maschmann$87.91
  2. Specialty average$1,147.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Genesis Health SystemDavenport, IA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

3 obstetrics & gynecology physician records list a Spring Valley practice address

They are 3 of the 73 NPPES records with a Spring Valley practice address, and 1,983 obstetrics & gynecology physician records in Illinois.

Other obstetrics & gynecology physician records in Illinois

  1. Anum Abbasi, MDChicago, IL1679063010
  2. Rana Abdul-Khalek, MDRoscoe, IL1275768087
  3. Idries Abdur-Rahman, M.D.Ottawa, IL1891727236
  4. Jamil Abdur-Rahman, M.D.Gurnee, IL1710914189
  5. Greta Abel, PA-CWheaton, IL1174844096
  6. Ashley Abraham, M.D.Arlington Heights, IL1457615742
  7. Iris Abrahantes Morales, MDChicago, IL1164155164
  8. Fidel Abrego, MDChicago, IL1245351824
  9. Bayan AbunarAurora, IL1972063220
  10. Sara AbuzahraChicago, IL1952105066

Common questions

What is Jennifer Maschmann, MD's NPI number?

Jennifer Maschmann, MD's National Provider Identifier (NPI) is 1023021433, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Maschmann, MD located?

The NPPES record lists a practice address at 600 E 1St St, Spring Valley, IL, 61362. Phone: (815) 663-2300. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Maschmann, MD's license?

NPPES lists Illinois license number 036108815, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jennifer Maschmann, MD prescribe under Medicare Part D?

In 2024, Jennifer Maschmann, MD had 172 Medicare Part D claims for 53 beneficiaries; the average among obstetrics & gynecology physician prescribers was 188. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.