DR. CLAYTON A OLASH
NPI 1699357756
Psychiatry & Neurology - Psychiatry in Charleston, SC

Q: What is Clayton Olash's NPI number?

The NPI number for Clayton Olash is 1699357756. It was assigned to this individual provider in the NPPES registry on April 27, 2021.

Q: What is Clayton Olash's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Clayton Olash was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 27, 2021PECOS Enrolled

171 ASHLEY AVE, CHARLESTON, SC 29425(502) 377-8275 Get Directions Write a Review

NPPES record last updated: June 10, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 10, 2025, Apr 27, 2021 (2 updates tracked since 2021).

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About Dr. Clayton A Olash NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CLAYTON A OLASH (NPI 1699357756) is an individual psychiatry provider in Charleston, South Carolina, licensed in South Carolina (LL90214) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699357756

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. CLAYTON A OLASH

Location Address171 ASHLEY AVECharleston, SC 29425-1702

Mailing Address169 Ashley Ave Rm 202Charleston, SC 29425-8905 · (502) 377-8275

Phone(502) 377-8275

Sole ProprietorYes

Enumeration DateApril 27, 2021

Last NPPES UpdateJune 10, 20252 updates tracked since enumeration

NPPES CertifiedJune 10, 2025

✔ NPI 1699357756 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in SC · LL90214

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

171 ASHLEY AVE, Charleston, SC 29425

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Other Identifiers 1

Medicaid1760596480SC

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Clayton A Olash is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29425 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$163.84 typical visit price

range $53.57 – $163.84

Typical copayment $40.96 (range $13.39 – $40.96)

Most-billed visit code 99205

Established Patient

$67.12 typical visit price

range $16.96 – $133.52

Typical copayment $16.78 (range $4.24 – $33.38)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CAROLYN REED WORD M.D.

Allergy & Immunology