Ryan Gienapp, DO
NPI 1639798267 · Internal Medicine Physician · Corvallis, OR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Gienapp, DO is a Internal Medicine Physician provider in Corvallis, OR (NPI 1639798267).
Provider details
- NPI number
- 1639798267
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 199627 (OR)
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 tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
860 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) |
|---|---|---|
| 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 | 291 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 250 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 160 | $93 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 49 | $78 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 47 | $127 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 84 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 252 | 93 |
| Levothyroxine Sodium | 189 | 58 |
| Lisinopril | 173 | 66 |
| Losartan Potassium | 130 | 57 |
| Amlodipine Besylate | 120 | 44 |
| Metformin Hcl | 102 | 31 |
| Omeprazole |
Practice location
Mailing address
Additional practice locations (1)
- 3600 Nw Samaritan DrCorvallis, OR 97330-3737Phone: (541) 768-4906
Registry dates
- Enumerated
- 2020-04-14
- Last updated
- 2023-09-19
- Certified
- 2023-09-19
Frequently asked questions
- What is Ryan Gienapp's NPI number?
- Ryan Gienapp's National Provider Identifier (NPI) is 1639798267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Gienapp's specialty?
- Ryan Gienapp is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Gienapp located?
- Ryan Gienapp's practice location on file with NPPES is 3521 Nw Samaritan Dr Ste 201, Corvallis, OR 97330-4744.
- What is Ryan Gienapp's phone number?
- The practice phone number listed in the NPPES registry for Ryan Gienapp is (541) 768-5140.
- Does Ryan Gienapp accept Medicare?
- Ryan Gienapp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Gienapp's NPI active?
- Yes — Ryan Gienapp's NPI (1639798267) is active in the NPPES registry as of the last update on 2023-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.