Ralph Ryan, M.D.
NPI 1548254972 · Cardiovascular Disease Physician · Oak Park, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ralph Ryan, M.D. is a Cardiovascular Disease Physician provider in Oak Park, IL (NPI 1548254972).
Provider details
- NPI number
- 1548254972
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301043406 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Empagliflozinbrand: Jardiance | 19 |
| Spironolactone | 18 |
| Rosuvastatin Calcium | 17 |
| Sacubitril/Valsartanbrand: Entresto | 16 |
| Metoprolol Succinate | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1900 Brother Geenen WaySarasota, FL 34236-7102Phone: (941) 556-3220Fax: (941) 955-8214
Registry dates
- Enumerated
- 2005-08-31
- Last updated
- 2020-01-02
- Certified
- 2020-01-02
Frequently asked questions
- What is Ralph Ryan's NPI number?
- Ralph Ryan's National Provider Identifier (NPI) is 1548254972, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Ryan's specialty?
- Ralph Ryan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ralph Ryan located?
- Ralph Ryan's practice location on file with NPPES is 14 Lake St, Oak Park, IL 60302-2606.
- What is Ralph Ryan's phone number?
- The practice phone number listed in the NPPES registry for Ralph Ryan is (708) 383-0113.
- Does Ralph Ryan accept Medicare?
- Ralph Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ralph Ryan's NPI active?
- Yes — Ralph Ryan's NPI (1548254972) is active in the NPPES registry as of the last update on 2020-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.