Margarita Ruiz, PA-C, MS
NPI 1194998237 · Physician Assistant · Chicago, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margarita Ruiz, PA-C, MS is a Physician Assistant provider in Chicago, IL (NPI 1194998237).
Provider details
- NPI number
- 1194998237
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C, MS
- Sex
- Female
- Sole proprietor
- Yes
- License
- 085003106 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 33 | 12 |
| Lorazepam | 29 | — |
| Levothyroxine Sodium | 26 | — |
| Gabapentin | 24 | — |
| Lisinopril | 19 | — |
| Amlodipine Besylate | 15 | — |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$826 across 37 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3454 N Lincoln AveChicago, IL 60657-1173Phone: (773) 472-1571
Registry dates
- Enumerated
- 2008-04-09
- Last updated
- 2021-07-01
- Certified
- 2021-07-01
Frequently asked questions
- What is Margarita Ruiz's NPI number?
- Margarita Ruiz's National Provider Identifier (NPI) is 1194998237, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margarita Ruiz's specialty?
- Margarita Ruiz is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margarita Ruiz located?
- Margarita Ruiz's practice location on file with NPPES is 2359 N California Ave, Chicago, IL 60647-2939.
- What is Margarita Ruiz's phone number?
- The practice phone number listed in the NPPES registry for Margarita Ruiz is (773) 278-7024.
- Does Margarita Ruiz accept Medicare?
- Margarita Ruiz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margarita Ruiz's NPI active?
- Yes — Margarita Ruiz's NPI (1194998237) is active in the NPPES registry as of the last update on 2021-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.