Maribeth December, M.D.
Internal Medicine Physician · Park Ridge, IL
Maribeth December, M.D. is an internal medicine physician with a practice address in Park Ridge, Illinois, and NPI 1245275635, issued on Jun 18, 2006. Check the license (Illinois 036-074199, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Maribeth December
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-074199 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1775 Ballard RD, Park Ridge, IL 60068
- Phone
- (847) 318-9340
- Enumerated
- Jun 18, 2006
- Record last updated
- Jun 23, 2022
- Medicare enrollment
- Enrolled (PECOS I20100521000335); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1985
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 1775 Ballard RD
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Verify Maribeth December 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 036-074199Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average internal medicine physician in 2024
4,023 Medicare Part D claims for 424 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Atorvastatin Calcium391 claims
- Amlodipine Besylate242 claims
- Hydrochlorothiazide241 claims
- Lisinopril204 claims
- Losartan Potassium193 claims
- Levothyroxine Sodium186 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 2 group practices
- Advocate Health And Hospitals CorporationPark Ridge, IL
- Select Rehabilitation, LLCGlenview, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maribeth December among 7,238 internal medicine physician records in Illinois
Maribeth December, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1985 · median 2003 among the 3,580 with a school on file
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
163 internal medicine physician records list a practice address in Park Ridge
They are 163 of the 2,577 NPPES records with a practice address in Park Ridge, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Park Ridge → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Voula Asimacopoulos, MDPark Ridge, IL 600681114920824
- Howard Becker, MDPark Ridge, IL 600681245269794
- Mark Conley, D.O.Park Ridge, IL 600681366471856
- Michael Greising, MDPark Ridge, IL 600681629071329
- Thomas Holmes, M.D.Park Ridge, IL 600681689603110
- Jaroslaw Leszczak, MDPark Ridge, IL 600681588606222
- Andrey Lev-Weissberg, MDPark Ridge, IL 600681245206655
- Stuart Oserman, M.D.Park Ridge, IL 600681750326450
Common questions
What is Maribeth December, M.D.'s NPI number?
Maribeth December, M.D.'s National Provider Identifier (NPI) is 1245275635, issued on Jun 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maribeth December, M.D. located?
The NPPES record lists a practice address at 1775 Ballard RD, Park Ridge, IL, 60068. Phone: (847) 318-9340. Providers update this record themselves, so call before visiting.
How can I verify Maribeth December, M.D.'s license?
NPPES lists Illinois license number 036-074199, 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 Maribeth December, M.D. prescribe under Medicare Part D?
In 2024, Maribeth December, M.D. had 4,023 Medicare Part D claims for 424 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.