Ryan Fabrizius, M.D.
NPI 1851683122 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Fabrizius, M.D. is a Internal Medicine Physician provider in Chicago, IL (NPI 1851683122).
Provider details
- NPI number
- 1851683122
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 55895 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 92 | 34 |
| Metformin Hcl | 74 | 25 |
| Amlodipine Besylate | 60 | 25 |
| Tamsulosin Hcl | 48 | 18 |
| Lisinopril | 45 | 16 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 42 | — |
| Dulaglutide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (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
Registry dates
- Enumerated
- 2011-05-05
- Last updated
- 2021-05-26
- Certified
- 2021-05-26
Frequently asked questions
- What is Ryan Fabrizius's NPI number?
- Ryan Fabrizius's National Provider Identifier (NPI) is 1851683122, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Fabrizius's specialty?
- Ryan Fabrizius is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Fabrizius located?
- Ryan Fabrizius's practice location on file with NPPES is 3860 W Ogden Ave, Chicago, IL 60623-2460.
- What is Ryan Fabrizius's phone number?
- The practice phone number listed in the NPPES registry for Ryan Fabrizius is (872) 588-3000.
- Does Ryan Fabrizius accept Medicare?
- Ryan Fabrizius is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Fabrizius's NPI active?
- Yes — Ryan Fabrizius's NPI (1851683122) is active in the NPPES registry as of the last update on 2021-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.