Maribeth December, M.D.
NPI 1245275635 · Internal Medicine Physician · Park Ridge, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maribeth December, M.D. is a Internal Medicine Physician provider in Park Ridge, IL (NPI 1245275635).
Provider details
- NPI number
- 1245275635
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036-074199 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,348 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 421 | $132 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 282 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 197 | $132 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 90 | $93 |
| Administration of Influenza Virus VaccineG0008 | 73 | $34 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 60 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 60 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 391 | 110 |
| Amlodipine Besylate | 242 | 72 |
| Hydrochlorothiazide | 241 | 69 |
| Lisinopril | 204 | 59 |
| Losartan Potassium | 193 | 62 |
| Levothyroxine Sodium | 186 | 51 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-18
- Last updated
- 2022-06-23
- Certified
- 2022-06-23
Frequently asked questions
- What is Maribeth December's NPI number?
- Maribeth December's National Provider Identifier (NPI) is 1245275635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maribeth December's specialty?
- Maribeth December is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maribeth December located?
- Maribeth December's practice location on file with NPPES is 1775 Ballard Rd, Park Ridge, IL 60068-1005.
- What is Maribeth December's phone number?
- The practice phone number listed in the NPPES registry for Maribeth December is (847) 318-9340.
- Does Maribeth December accept Medicare?
- Maribeth December is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maribeth December's NPI active?
- Yes — Maribeth December's NPI (1245275635) is active in the NPPES registry as of the last update on 2022-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.