DR. CHELSEA J SIWIK (PHD) – Clinical Psychologist, NPI 1598540809

DR. CHELSEA J SIWIK (PHD) is a healthcare provider. based in Avon lake, Ohio. specializing in Clinical Psychologist. They hold the professional credentials PHD. They hold a License No. PSY34199 (CA). The NPI Number for DR. CHELSEA J SIWIK (PHD) is 1598540809

Main info

Female
Sole Proprietor
Name
DR. CHELSEA J SIWIK (PHD)
NPI
1598540809
Phone
Not provided
Address
32820 SORRENTO LN
Enumeration Date
28 August 2023
Last Update Date
17 March 2024
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience37
Completeness75
Years active:2State licenses:2Digital endpointsOther names

Provider Addresses for DR. CHELSEA J SIWIK (PHD)

  • 32820 SORRENTO LN

    AVON LAKE, OH 440122385

    Phone:

    Type: Mailing

  • 9500 EUCLID AVE

    CLEVELAND, OH 441950001

    Phone: (920) 267-0309

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2024-03-27

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20240327001500IClinical PsychologistOHTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 44012)

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Reviews

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Frequently asked questions

What identifier follows DR. CHELSEA J SIWIK (PHD) across health systems?
The NPI 1598540809 uniquely identifies DR. CHELSEA J SIWIK (PHD) in U.S. healthcare data.
Should I treat DR. CHELSEA J SIWIK (PHD) as an active provider?
Patients and plans typically see DR. CHELSEA J SIWIK (PHD) as active in the national extract.
How should patients interpret DR. CHELSEA J SIWIK (PHD)'s specialty?
The extract shows Clinical Psychologist for DR. CHELSEA J SIWIK (PHD). Clinical services aligned with this taxonomy classification.
What city is tied to DR. CHELSEA J SIWIK (PHD)?
The directory associates DR. CHELSEA J SIWIK (PHD) with Avon Lake, Ohio. Check all listed addresses for suites or satellite offices.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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