NPPES file of Aug 9, 2026

Jennifer Louise Schaefer, M.D.

Obstetrics & Gynecology Physician · Libertyville, IL

Jennifer Louise Schaefer, M.D. is an obstetrics & gynecology physician with a practice address in Libertyville, Illinois, and NPI 1669468484, issued on Sep 27, 2005. Check the license (Illinois 036095549, 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, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669468484
Name
Jennifer Louise Schaefer
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
036095549 IL
Self-reported in NPPES; status is on the state search
Practice location
801 S Milwaukee Ave, Libertyville, IL 60048
Phone
(847) 680-3400
Enumerated
Sep 27, 2005
Record last updated
Dec 28, 2022
Fax
(847) 680-3486
Medicare enrollment
Enrolled (PECOS I20100422000990); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1994
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 801 S Milwaukee Ave

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

  1. Ellen Adler, MS CCC-SLPSpeech-Language Pathologist1700809647
  2. Nasreen Ahmed, M.D.Hospitalist Physician1699070540
  3. Natasha Ali, PACPhysician Assistant1487096483
  4. Sarah Alkilany, MDAnesthesiology Physician1922673953
  5. Dominique AreolaPediatric Occupational Therapist1669933594
  6. Jenna AshleySurgical Physician Assistant1346082153

Verify Jennifer Louise Schaefer 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 036095549
    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

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38% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

103 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 13% of claims.

  1. Jennifer Schaefer103
  2. Specialty average165

Most prescribed

  1. Estradiol22 claims
  2. Clobetasol Propionate11 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: $273.56

11 payments; by number, the most common kind was food and beverage; the largest payer was Millicent US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer Schaefer$273.56
  2. Specialty average$1,030.61

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

Bills Medicare through one group practice

  1. OB-Gyne Associates OF Libertyville SCLibertyville, IL

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

Jennifer Louise Schaefer among 2,062 obstetrics & gynecology physician records in Illinois

Jennifer Louise Schaefer, M.D. is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% 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, 88% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1994 · median 2006 among the 1,168 with a school on file
  • Record last updated2022 · 51% 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 Illinois 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 Illinois

There are 2,062 obstetrics & gynecology physician records in Illinois.

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

  1. Anastasia Brierton, DOLibertyville, IL 600481992385520
  2. Megan Davis, MDLibertyville, IL 600481790364412
  3. Michael Hu, MDLibertyville, IL 600481114909942
  4. Yasir Mekki, MDLibertyville, IL 600481902947575
  5. Rannveig Middleton, M.D.Libertyville, IL 600481912292822
  6. Eileen Morrison, MDLibertyville, IL 600481770575797
  7. Akemi Nakanishi, M.D.Libertyville, IL 600481366436388
  8. Vincenzo Padovano, MDLibertyville, IL 600481851376032

Common questions

What is Jennifer Louise Schaefer, M.D.'s NPI number?

Jennifer Louise Schaefer, M.D.'s National Provider Identifier (NPI) is 1669468484, issued on Sep 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Louise Schaefer, M.D. located?

The NPPES record lists a practice address at 801 S Milwaukee Ave, Libertyville, IL, 60048. Phone: (847) 680-3400. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Louise Schaefer, M.D.'s license?

NPPES lists Illinois license number 036095549, 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 Louise Schaefer, M.D. prescribe under Medicare Part D?

In 2024, Jennifer Louise Schaefer, M.D. had 103 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.