Ariel Llewellyn
NPI 1699263426 · Counselor · Buffalo, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ariel Llewellyn is a Counselor provider in Buffalo, NY (NPI 1699263426).
Provider details
- NPI number
- 1699263426
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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)
- 430 Niagara StBuffalo, NY 14201-1886Phone: (716) 856-2587
Registry dates
- Enumerated
- 2018-04-26
- Last updated
- 2022-01-12
- Certified
- 2022-01-12
Frequently asked questions
- What is Ariel Llewellyn's NPI number?
- Ariel Llewellyn's National Provider Identifier (NPI) is 1699263426, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ariel Llewellyn's specialty?
- Ariel Llewellyn is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Ariel Llewellyn located?
- Ariel Llewellyn's practice location on file with NPPES is 699 Hertel Ave Ste 350, Buffalo, NY 14207-2341.
- What is Ariel Llewellyn's phone number?
- The practice phone number listed in the NPPES registry for Ariel Llewellyn is (716) 831-1977.
- Does Ariel Llewellyn accept Medicare?
- Ariel Llewellyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ariel Llewellyn's NPI active?
- Yes — Ariel Llewellyn's NPI (1699263426) is active in the NPPES registry as of the last update on 2022-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.