Alexander Ruiz, MD
NPI 1144916479 · Student in an Organized Health Care Education/Training Program · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Ruiz, MD is a Student in an Organized Health Care Education/Training Program provider in Chicago, IL (NPI 1144916479).
Provider details
- NPI number
- 1144916479
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- 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
3 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Metoprolol Tartrate | 18 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 18 |
| Furosemide | 16 |
| Insulin Degludecbrand: Insulin Degludec Pen (u-100) | 16 |
| Gabapentin | 14 |
| Mirabegronbrand: Myrbetriq | 14 |
| Omeprazole | 13 |
| Carvedilol | 13 |
| Insulin Lisprobrand: Humalog Kwikpen U-100 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-04-11
- Last updated
- 2023-04-11
- Certified
- 2023-04-11
Frequently asked questions
- What is Alexander Ruiz's NPI number?
- Alexander Ruiz's National Provider Identifier (NPI) is 1144916479, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Ruiz's specialty?
- Alexander Ruiz 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 Alexander Ruiz located?
- Alexander Ruiz's practice location on file with NPPES is 1431 N Western Ave Ste 406, Chicago, IL 60622-1774.
- What is Alexander Ruiz's phone number?
- The practice phone number listed in the NPPES registry for Alexander Ruiz is (312) 633-5841.
- Does Alexander Ruiz accept Medicare?
- Alexander Ruiz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Ruiz's NPI active?
- Yes — Alexander Ruiz's NPI (1144916479) is active in the NPPES registry as of the last update on 2023-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.