Janna Chao, M.D.
NPI 1649376070 · Family Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janna Chao, M.D. is a Family Medicine Physician provider in Seattle, WA (NPI 1649376070).
Provider details
- NPI number
- 1649376070
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD00032111 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
292 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 | 110 | $141 |
| 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 | 74 | $17 |
| Hemoglobin A1c Level83036 | 41 | $10 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 36 | $143 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 31 | $100 |
Typical Medicare-allowed amounts for these services range $10–$143 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 288 | 84 |
| Amlodipine Besylate | 163 | 47 |
| Losartan Potassium | 130 | 38 |
| Metformin Hclbrand: Metformin Hcl Er | 129 | 39 |
| Lisinopril | 108 | 31 |
| Levothyroxine Sodium | 100 | 26 |
Practice location
Mailing address
Additional practice locations (1)
- 911 N 10th PlRenton, WA 98057-0009Phone: (425) 391-5700Fax: (425) 391-5701
Registry dates
- Enumerated
- 2006-09-15
- Last updated
- 2020-10-07
- Certified
- 2020-10-07
Frequently asked questions
- What is Janna Chao's NPI number?
- Janna Chao's National Provider Identifier (NPI) is 1649376070, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janna Chao's specialty?
- Janna Chao is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Janna Chao located?
- Janna Chao's practice location on file with NPPES is 2505 2nd Ave, Seattle, WA 98121-1452.
- What is Janna Chao's phone number?
- The practice phone number listed in the NPPES registry for Janna Chao is (206) 443-0400.
- Does Janna Chao accept Medicare?
- Janna Chao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janna Chao's NPI active?
- Yes — Janna Chao's NPI (1649376070) is active in the NPPES registry as of the last update on 2020-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.