Charles Warren, M.D.
NPI 1962821306 · Anesthesiology Physician · Birmingham, AL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Warren, M.D. is a Anesthesiology Physician provider in Birmingham, AL (NPI 1962821306).
Provider details
- NPI number
- 1962821306
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 34458 (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
12 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
115 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 29 | $41 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 23 | $13 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 13 | $79 |
| Ultrasound of Heart With Probe in Esophagus, With Report93312 | 13 | $98 |
| Ultrasound of Heart Blood Flow, Valves and Chambers93320 | 13 | $16 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 13 | $3 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$34 across 1 record (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
- 2014-04-14
- Last updated
- 2018-08-23
Frequently asked questions
- What is Charles Warren's NPI number?
- Charles Warren's National Provider Identifier (NPI) is 1962821306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Warren's specialty?
- Charles Warren is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Warren located?
- Charles Warren's practice location on file with NPPES is 619 19th St S, Birmingham, AL 35249.
- What is Charles Warren's phone number?
- The practice phone number listed in the NPPES registry for Charles Warren is (205) 934-4011.
- Does Charles Warren accept Medicare?
- Charles Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Warren's NPI active?
- Yes — Charles Warren's NPI (1962821306) is active in the NPPES registry as of the last update on 2018-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.