Karlene Walker, M.D.
NPI 1821475641 · Developmental - Behavioral Pediatrics Physician · Birmingham, AL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karlene Walker, M.D. is a Developmental - Behavioral Pediatrics Physician provider in Birmingham, AL (NPI 1821475641).
Provider details
- NPI number
- 1821475641
- Entity type
- Individual
- Primary specialty
- Developmental - Behavioral Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 35704 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 1600 7th Ave SBirmingham, AL 35233-1711Phone: (205) 934-8923
Registry dates
- Enumerated
- 2015-04-30
- Last updated
- 2023-06-22
- Certified
- 2023-06-22
Frequently asked questions
- What is Karlene Walker's NPI number?
- Karlene Walker's National Provider Identifier (NPI) is 1821475641, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karlene Walker's specialty?
- Karlene Walker is listed in the NPPES registry with a primary specialty of Developmental - Behavioral Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Karlene Walker located?
- Karlene Walker's practice location on file with NPPES is 930 20th St S Ste 140, Birmingham, AL 35205-2610.
- What is Karlene Walker's phone number?
- The practice phone number listed in the NPPES registry for Karlene Walker is (205) 934-8923.
- Does Karlene Walker accept Medicare?
- Karlene Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karlene Walker's NPI active?
- Yes — Karlene Walker's NPI (1821475641) is active in the NPPES registry as of the last update on 2023-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.