Jennifer S. Fredericks, MD
Family Medicine Physician · Bartlett, IL
Jennifer S. Fredericks, MD is a family medicine physician with a practice address in Bartlett, Illinois, and NPI 1093743163, issued on Jun 29, 2006. Check the license (Illinois 036106524, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jennifer S. Fredericks
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036106524 IL
Self-reported in NPPES; status is on the state search - Practice location
- 820 S IL Route 59, Bartlett, IL 60103
- Phone
- (630) 483-5930
- Enumerated
- Jun 29, 2006
- Record last updated
- Apr 4, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (630) 483-5939
- Medicaid ID
- 036106524 ID
- Medicare enrollment
- Enrolled (PECOS I20101217000289); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 820 S IL Route 59
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rolf Stavig, MDFamily Medicine Physician1265462089
- Logan StilesPhysical Therapist1750963120
- Mary Jo Zampa, NP-CNurse Practitioner1932414943
Verify Jennifer S. Fredericks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036106524Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average family medicine physician in 2024
4,453 Medicare Part D claims for 400 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 50 claims were for opioids.
Most prescribed
- Levothyroxine Sodium363 claims
- Atorvastatin Calcium319 claims
- Lisinopril171 claims
- Simvastatin163 claims
- Losartan Potassium149 claims
- Rosuvastatin Calcium145 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.
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Central Dupage Physician GroupBartlett, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer S. Fredericks among 6,215 family medicine physician records in Illinois
Jennifer S. Fredericks, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1999 · median 2006 among the 3,714 with a school on file
- Record last updated2013 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 family medicine physician records list a practice address in Bartlett
They are 24 of the 384 NPPES records with a practice address in Bartlett, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Bartlett → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Brenda Bergeson, MDBartlett, IL 601031144258542
- Walter Beusse, DOBartlett, IL 601031083612329
- Michael Brunner, DOBartlett, IL 601031215166319
- Monica Chirila, MDBartlett, IL 601031174598189
- Michael Dunleavy, DOBartlett, IL 601031811927239
- Charles Kalenowski, DOBartlett, IL 601031023046414
- Jorge Martinez, MDBartlett, IL 601031114984895
- Lalin Nuth, D.O.Bartlett, IL 601031992933105
Common questions
What is Jennifer S. Fredericks, MD's NPI number?
Jennifer S. Fredericks, MD's National Provider Identifier (NPI) is 1093743163, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer S. Fredericks, MD located?
The NPPES record lists a practice address at 820 S IL Route 59, Bartlett, IL, 60103. Phone: (630) 483-5930. Providers update this record themselves, so call before visiting.
How can I verify Jennifer S. Fredericks, MD's license?
NPPES lists Illinois license number 036106524, 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 S. Fredericks, MD prescribe under Medicare Part D?
In 2024, Jennifer S. Fredericks, MD had 4,453 Medicare Part D claims for 400 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Jennifer S. Fredericks, MD's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.