Christina Ryan, MD
NPI 1164451589 · Internal Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Ryan, MD is a Internal Medicine Physician provider in Seattle, WA (NPI 1164451589).
Provider details
- NPI number
- 1164451589
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD00046613 (WA)
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
19 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
688 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 322 | $126 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 176 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 97 | $90 |
| 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 | 40 | $16 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 | 21 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 141 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 349 | 87 |
| Levothyroxine Sodium | 283 | 81 |
| Gabapentin | 253 | 70 |
| Amlodipine Besylate | 229 | 65 |
| Lisinopril | 221 | 67 |
| Omeprazole | 210 | 62 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-30
- Last updated
- 2012-01-12
Frequently asked questions
- What is Christina Ryan's NPI number?
- Christina Ryan's National Provider Identifier (NPI) is 1164451589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Ryan's specialty?
- Christina Ryan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Ryan located?
- Christina Ryan's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2420.
- What is Christina Ryan's phone number?
- The practice phone number listed in the NPPES registry for Christina Ryan is (206) 731-5100.
- Does Christina Ryan accept Medicare?
- Christina Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Ryan's NPI active?
- Yes — Christina Ryan's NPI (1164451589) is active in the NPPES registry as of the last update on 2012-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.