Gregory Rouan, M.D.
NPI 1023066222 · Internal Medicine Physician · Cincinnati, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Rouan, M.D. is a Internal Medicine Physician provider in Cincinnati, OH (NPI 1023066222).
Provider details
- NPI number
- 1023066222
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35-046436 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
770 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 307 | $69 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 240 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 77 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $82 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 45 | $17 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
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 | 325 | 84 |
| Lisinopril | 149 | 43 |
| Levothyroxine Sodium | 112 | 22 |
| Amlodipine Besylate | 86 | 18 |
| Trazodone Hcl | 83 | 16 |
| Simvastatin | 49 | 14 |
| Apixabanbrand: Eliquis |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-04
- Last updated
- 2013-03-12
Frequently asked questions
- What is Gregory Rouan's NPI number?
- Gregory Rouan's National Provider Identifier (NPI) is 1023066222, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Rouan's specialty?
- Gregory Rouan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Rouan located?
- Gregory Rouan's practice location on file with NPPES is 222 Piedmont Ave, Cincinnati, OH 45219-4231.
- What is Gregory Rouan's phone number?
- The practice phone number listed in the NPPES registry for Gregory Rouan is (513) 475-7880.
- Does Gregory Rouan accept Medicare?
- Gregory Rouan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Rouan's NPI active?
- Yes — Gregory Rouan's NPI (1023066222) is active in the NPPES registry as of the last update on 2013-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.