Janell Chandler Mace, M.D
Obstetrics & Gynecology Physician · Downers Grove, IL
Janell Chandler Mace, M.D is an obstetrics & gynecology physician with a practice address in Downers Grove, Illinois, and NPI 1659550408, issued on Oct 29, 2007. Check the license (Illinois 036128252, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Janell Chandler Mace
- Credential
- M.D
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 036128252 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5207 Main St, Downers Grove, IL 60515
- Phone
- (630) 969-7706
- Enumerated
- Oct 29, 2007
- Record last updated
- Apr 5, 2022
- Fax
- (630) 971-6373
- Medicare enrollment
- Enrolled (PECOS I20150316000536); accepts Medicare assignment
- Medical or professional school
- Jc Edwards School Of Medicine, Marshall University, 2007
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 5207 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Janell Chandler Mace 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 036128252Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
200 Medicare Part D claims for 63 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Estradiol54 claims
- Clobetasol Propionate21 claims
- Fluconazole14 claims
- Metronidazole11 claims
- Sprintec11 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
- West Virginia University Medical CorporationMorgantown, WV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Janell Chandler Mace among 2,062 obstetrics & gynecology physician records in Illinois
Janell Chandler Mace, 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 47% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2007 · 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).
27 obstetrics & gynecology physician records list a practice address in Downers Grove
They are 27 of the 1,899 NPPES records with a practice address in Downers Grove, and 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Downers Grove → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Naheed Akhter, MDDowners Grove, IL 605151861555179
- Shamita Bansore, MDDowners Grove, IL 605151700813771
- Radhika Chawla, M.D.Downers Grove, IL 605151790876803
- Amy Gaunt, MDDowners Grove, IL 605151063580801
- Jennifer Hannan, M.D.Downers Grove, IL 605151245496868
- James Jenks, M.D.Downers Grove, IL 605151154435444
- Narmadha Kuppuswami, M.D.Downers Grove, IL 605151194720128
- Robert LawlerDowners Grove, IL 605151386758506
Common questions
What is Janell Chandler Mace, M.D's NPI number?
Janell Chandler Mace, M.D's National Provider Identifier (NPI) is 1659550408, issued on Oct 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Janell Chandler Mace, M.D located?
The NPPES record lists a practice address at 5207 Main St, Downers Grove, IL, 60515. Phone: (630) 969-7706. Providers update this record themselves, so call before visiting.
How can I verify Janell Chandler Mace, M.D's license?
NPPES lists Illinois license number 036128252, 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 Janell Chandler Mace, M.D prescribe under Medicare Part D?
In 2024, Janell Chandler Mace, M.D had 200 Medicare Part D claims for 63 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Janell Chandler Mace, M.D'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.