Chelsea Siwik, PHD
NPI 1598540809 · Clinical Psychologist · Cleveland, OH
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chelsea Siwik, PHD is a Clinical Psychologist provider in Cleveland, OH (NPI 1598540809).
Provider details
- NPI number
- 1598540809
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY34199 (CA)
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
2 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
- 2023-08-28
- Last updated
- 2024-03-17
- Certified
- 2024-03-17
Frequently asked questions
- What is Chelsea Siwik's NPI number?
- Chelsea Siwik's National Provider Identifier (NPI) is 1598540809, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chelsea Siwik's specialty?
- Chelsea Siwik is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Chelsea Siwik located?
- Chelsea Siwik's practice location on file with NPPES is 9500 Euclid Ave, Cleveland, OH 44195-0001.
- What is Chelsea Siwik's phone number?
- The practice phone number listed in the NPPES registry for Chelsea Siwik is (920) 267-0309.
- Does Chelsea Siwik accept Medicare?
- Chelsea Siwik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chelsea Siwik's NPI active?
- Yes — Chelsea Siwik's NPI (1598540809) is active in the NPPES registry as of the last update on 2024-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.