Cassandra Ziesemer, DO
NPI 1265372239 · Student in an Organized Health Care Education/Training Program · Oak Lawn, IL
Cassandra Ziesemer, DO is a Student in an Organized Health Care Education/Training Program provider in Oak Lawn, IL (NPI 1265372239).
Provider details
- NPI number
- 1265372239
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2026-03-30
- Last updated
- 2026-05-20
- Certified
- 2026-05-20
Frequently asked questions
- What is Cassandra Ziesemer's NPI number?
- Cassandra Ziesemer's National Provider Identifier (NPI) is 1265372239, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Ziesemer's specialty?
- Cassandra Ziesemer is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Cassandra Ziesemer located?
- Cassandra Ziesemer's practice location on file with NPPES is 4220 W 95th St Ste 210, Oak Lawn, IL 60453-2793.
- What is Cassandra Ziesemer's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Ziesemer is (312) 949-4200.
- Is Cassandra Ziesemer's NPI active?
- Yes — Cassandra Ziesemer's NPI (1265372239) is active in the NPPES registry as of the last update on 2026-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.