Gregory Veldhuizen, MD, PHD
NPI 1790589539 · 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)
Gregory Veldhuizen, MD, PHD is a Student in an Organized Health Care Education/Training Program provider in Chicago, IL (NPI 1790589539).
Provider details
- NPI number
- 1790589539
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- Yes
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
1 yr 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
- 2025-04-02
- Last updated
- 2025-04-02
- Certified
- 2025-04-02
Frequently asked questions
- What is Gregory Veldhuizen's NPI number?
- Gregory Veldhuizen's National Provider Identifier (NPI) is 1790589539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Veldhuizen's specialty?
- Gregory Veldhuizen 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 Gregory Veldhuizen located?
- Gregory Veldhuizen's practice location on file with NPPES is 5840 S Maryland Ave, Chicago, IL 60637-1462.
- What is Gregory Veldhuizen's phone number?
- The practice phone number listed in the NPPES registry for Gregory Veldhuizen is (773) 702-1447.
- Does Gregory Veldhuizen accept Medicare?
- Gregory Veldhuizen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Veldhuizen's NPI active?
- Yes — Gregory Veldhuizen's NPI (1790589539) is active in the NPPES registry as of the last update on 2025-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.