Aaron Llewelyn, M.D.
NPI 1912311242 · Anesthesiology Physician · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Llewelyn, M.D. is a Anesthesiology Physician provider in Oklahoma City, OK (NPI 1912311242).
Provider details
- NPI number
- 1912311242
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 30711 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2014-06-14
- Last updated
- 2018-07-16
Frequently asked questions
- What is Aaron Llewelyn's NPI number?
- Aaron Llewelyn's National Provider Identifier (NPI) is 1912311242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Llewelyn's specialty?
- Aaron Llewelyn is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Llewelyn located?
- Aaron Llewelyn's practice location on file with NPPES is 750 Ne 13th St, Oklahoma City, OK 73104.
- What is Aaron Llewelyn's phone number?
- The practice phone number listed in the NPPES registry for Aaron Llewelyn is (405) 271-4351.
- Does Aaron Llewelyn accept Medicare?
- Aaron Llewelyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Llewelyn's NPI active?
- Yes — Aaron Llewelyn's NPI (1912311242) is active in the NPPES registry as of the last update on 2018-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.