Rachael Olson-Marszewski, MD
NPI 1427554369 · Psychiatry Physician · Maywood, IL
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachael Olson-Marszewski, MD is a Psychiatry Physician provider in Maywood, IL (NPI 1427554369).
Provider details
- NPI number
- 1427554369
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 125.073041 (IL)
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
8 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
- 2018-03-31
- Last updated
- 2018-07-17
Frequently asked questions
- What is Rachael Olson-Marszewski's NPI number?
- Rachael Olson-Marszewski's National Provider Identifier (NPI) is 1427554369, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachael Olson-Marszewski's specialty?
- Rachael Olson-Marszewski is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Rachael Olson-Marszewski located?
- Rachael Olson-Marszewski's practice location on file with NPPES is 2160 S 1st Ave, Maywood, IL 60153.
- What is Rachael Olson-Marszewski's phone number?
- The practice phone number listed in the NPPES registry for Rachael Olson-Marszewski is (773) 216-5536.
- Does Rachael Olson-Marszewski accept Medicare?
- Rachael Olson-Marszewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachael Olson-Marszewski's NPI active?
- Yes — Rachael Olson-Marszewski's NPI (1427554369) is active in the NPPES registry as of the last update on 2018-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.