Mehrens Warren
NPI 1932442431 · Certified Registered Nurse Anesthetist · Birmingham, AL
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mehrens Warren is a Certified Registered Nurse Anesthetist provider in Birmingham, AL (NPI 1932442431).
Provider details
- NPI number
- 1932442431
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 1-111894 (AL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 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
14 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) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 14 | $67 |
Typical Medicare-allowed amounts for these services range $67–$67 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-03
- Last updated
- 2022-10-25
Frequently asked questions
- What is Mehrens Warren's NPI number?
- Mehrens Warren's National Provider Identifier (NPI) is 1932442431, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mehrens Warren's specialty?
- Mehrens Warren is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mehrens Warren located?
- Mehrens Warren's practice location on file with NPPES is 1717 6th Ave S, Birmingham, AL 35233-1801.
- What is Mehrens Warren's phone number?
- The practice phone number listed in the NPPES registry for Mehrens Warren is (800) 822-8816.
- Does Mehrens Warren accept Medicare?
- Mehrens Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mehrens Warren's NPI active?
- Yes — Mehrens Warren's NPI (1932442431) is active in the NPPES registry as of the last update on 2022-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.