Charles Pennix, M.D.
NPI 1437447091 · Emergency Medicine Physician · Decatur, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Pennix, M.D. is a Emergency Medicine Physician provider in Decatur, IL (NPI 1437447091).
Provider details
- NPI number
- 1437447091
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036.138462 (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
14 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
333 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 187 | $181 |
| Critical Care, First 30-74 Minutes99291 | 86 | $215 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 60 | $123 |
Typical Medicare-allowed amounts for these services range $123–$215 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 31 | 29 |
| Prednisone | 26 | 26 |
| Cefdinir | 21 | 21 |
| Ondansetronbrand: Ondansetron Odt | 19 | 19 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 16 | 16 |
| Doxycycline Hyclate | 14 | 14 |
| Ibuprofen | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-07-18
- Last updated
- 2021-12-23
- Certified
- 2021-12-23
Frequently asked questions
- What is Charles Pennix's NPI number?
- Charles Pennix's National Provider Identifier (NPI) is 1437447091, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Pennix's specialty?
- Charles Pennix is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Pennix located?
- Charles Pennix's practice location on file with NPPES is 1800 E Lake Shore Dr, Decatur, IL 62521-3810.
- What is Charles Pennix's phone number?
- The practice phone number listed in the NPPES registry for Charles Pennix is (217) 464-2973.
- Does Charles Pennix accept Medicare?
- Charles Pennix is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Pennix's NPI active?
- Yes — Charles Pennix's NPI (1437447091) is active in the NPPES registry as of the last update on 2021-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.