Charles Giger, MD
NPI 1275558496 · Internal Medicine Physician · Elmhurst, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Giger, MD is a Internal Medicine Physician provider in Elmhurst, IL (NPI 1275558496).
Provider details
- NPI number
- 1275558496
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
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
19 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,666 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 868 | $93 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 824 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 440 | $133 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 428 | $19 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 411 | $19 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 109 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 764 | 217 |
| Levothyroxine Sodium | 510 | 118 |
| Amlodipine Besylate | 472 | 135 |
| Lisinopril | 369 | 96 |
| Metformin Hcl | 306 | 83 |
| Rosuvastatin Calcium | 239 | 70 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-12
- Last updated
- 2007-09-19
Frequently asked questions
- What is Charles Giger's NPI number?
- Charles Giger's National Provider Identifier (NPI) is 1275558496, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Giger's specialty?
- Charles Giger is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Giger located?
- Charles Giger's practice location on file with NPPES is 1200 S York Rd, Elmhurst, IL 60126-5626.
- What is Charles Giger's phone number?
- The practice phone number listed in the NPPES registry for Charles Giger is (630) 758-8885.
- Does Charles Giger accept Medicare?
- Charles Giger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Giger's NPI active?
- Yes — Charles Giger's NPI (1275558496) is active in the NPPES registry as of the last update on 2007-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.