Charles Felgner, M.D.
NPI 1871594176 · Internal Medicine Physician · Birmingham, AL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Felgner, M.D. is a Internal Medicine Physician provider in Birmingham, AL (NPI 1871594176).
Provider details
- NPI number
- 1871594176
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 6000 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,194 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 214 | $113 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 107 | $57 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 94 | $16 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 69 | $9 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 64 | $43 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 285 | 35 |
| Amlodipine Besylate | 248 | 71 |
| Atorvastatin Calcium | 182 | 51 |
| Zolpidem Tartrate | 155 | 25 |
| Pantoprazole Sodium | 138 | 38 |
| Clonazepam | 135 | 22 |
| Hydrocodone/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$87 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-09
- Last updated
- 2023-08-16
- Certified
- 2023-08-16
Frequently asked questions
- What is Charles Felgner's NPI number?
- Charles Felgner's National Provider Identifier (NPI) is 1871594176, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Felgner's specialty?
- Charles Felgner is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Felgner located?
- Charles Felgner's practice location on file with NPPES is 1 W Lakeshore Dr Ste 100, Birmingham, AL 35209-7271.
- What is Charles Felgner's phone number?
- The practice phone number listed in the NPPES registry for Charles Felgner is (205) 930-2950.
- Does Charles Felgner accept Medicare?
- Charles Felgner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Felgner's NPI active?
- Yes — Charles Felgner's NPI (1871594176) is active in the NPPES registry as of the last update on 2023-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.