Marieli Guzman, MD
NPI 1821556341 · Obstetrics & Gynecology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marieli Guzman, MD is a Obstetrics & Gynecology Physician provider in Chicago, IL (NPI 1821556341).
Provider details
- NPI number
- 1821556341
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036164470 (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
7 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
- 2019-03-04
- Last updated
- 2023-12-28
- Certified
- 2023-12-28
Frequently asked questions
- What is Marieli Guzman's NPI number?
- Marieli Guzman's National Provider Identifier (NPI) is 1821556341, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marieli Guzman's specialty?
- Marieli Guzman is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Marieli Guzman located?
- Marieli Guzman's practice location on file with NPPES is 4700 S California Ave, Chicago, IL 60632-2016.
- What is Marieli Guzman's phone number?
- The practice phone number listed in the NPPES registry for Marieli Guzman is (312) 942-7100.
- Does Marieli Guzman accept Medicare?
- Marieli Guzman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marieli Guzman's NPI active?
- Yes — Marieli Guzman's NPI (1821556341) is active in the NPPES registry as of the last update on 2023-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.