Clayton Olash
NPI 1699357756 · Psychiatry Physician · Charleston, SC
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clayton Olash is a Psychiatry Physician provider in Charleston, SC (NPI 1699357756).
Provider details
- NPI number
- 1699357756
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- LL90214 (SC)
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
5 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
- 2021-04-27
- Last updated
- 2025-06-10
- Certified
- 2025-06-10
Frequently asked questions
- What is Clayton Olash's NPI number?
- Clayton Olash's National Provider Identifier (NPI) is 1699357756, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clayton Olash's specialty?
- Clayton Olash is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Clayton Olash located?
- Clayton Olash's practice location on file with NPPES is 171 Ashley Ave, Charleston, SC 29425-1702.
- What is Clayton Olash's phone number?
- The practice phone number listed in the NPPES registry for Clayton Olash is (502) 377-8275.
- Does Clayton Olash accept Medicare?
- Clayton Olash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clayton Olash's NPI active?
- Yes — Clayton Olash's NPI (1699357756) is active in the NPPES registry as of the last update on 2025-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.