Cassandra Helfer, MD
NPI 1740049279 · Student in an Organized Health Care Education/Training Program · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassandra Helfer, MD is a Student in an Organized Health Care Education/Training Program provider in Chicago, IL (NPI 1740049279).
Provider details
- NPI number
- 1740049279
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
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
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
- 2024-03-18
- Last updated
- 2024-03-18
- Certified
- 2024-03-17
Frequently asked questions
- What is Cassandra Helfer's NPI number?
- Cassandra Helfer's National Provider Identifier (NPI) is 1740049279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Helfer's specialty?
- Cassandra Helfer 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 Helfer located?
- Cassandra Helfer's practice location on file with NPPES is 251 E Huron St, Chicago, IL 60611-3055.
- What is Cassandra Helfer's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Helfer is (312) 926-2000.
- Does Cassandra Helfer accept Medicare?
- Cassandra Helfer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassandra Helfer's NPI active?
- Yes — Cassandra Helfer's NPI (1740049279) is active in the NPPES registry as of the last update on 2024-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.