Clayton Markwell, ACD.0002396
NPI 1518622034 · Mental Health Counselor · Denver, CO
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clayton Markwell, ACD.0002396 is a Mental Health Counselor provider in Denver, CO (NPI 1518622034).
Provider details
- NPI number
- 1518622034
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- ACD.0002396
- Sex
- Male
- Sole proprietor
- No
- License
- LPC.00023632 (CO)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
4 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
- 2021-11-01
- Last updated
- 2026-03-27
- Certified
- 2026-03-27
Frequently asked questions
- What is Clayton Markwell's NPI number?
- Clayton Markwell's National Provider Identifier (NPI) is 1518622034, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clayton Markwell's specialty?
- Clayton Markwell is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Clayton Markwell located?
- Clayton Markwell's practice location on file with NPPES is 3766 Yates St, Denver, CO 80212-2041.
- What is Clayton Markwell's phone number?
- The practice phone number listed in the NPPES registry for Clayton Markwell is (312) 203-6382.
- Does Clayton Markwell accept Medicare?
- Clayton Markwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clayton Markwell's NPI active?
- Yes — Clayton Markwell's NPI (1518622034) is active in the NPPES registry as of the last update on 2026-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.