Peterson Tsai, D.O.
NPI 1629054879 · Family Medicine Physician · Vancouver, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peterson Tsai, D.O. is a Family Medicine Physician provider in Vancouver, WA (NPI 1629054879).
Provider details
- NPI number
- 1629054879
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A8341 (CA)
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 · 122 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 760 | 220 |
| Losartan Potassium | 433 | 142 |
| Amlodipine Besylate | 357 | 103 |
| Lisinopril | 251 | 77 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 248 | 88 |
| Levothyroxine Sodium | 241 | 72 |
Practice location
Mailing address
Additional practice locations (1)
- 23622 Calabasas RdSte 250Calabasas, CA 91302-1549Phone: (818) 591-3534
Registry dates
- Enumerated
- 2005-12-20
- Last updated
- 2026-02-13
- Certified
- 2026-02-13
Frequently asked questions
- What is Peterson Tsai's NPI number?
- Peterson Tsai's National Provider Identifier (NPI) is 1629054879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peterson Tsai's specialty?
- Peterson Tsai is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peterson Tsai located?
- Peterson Tsai's practice location on file with NPPES is 7101 Ne 137th Ave, Vancouver, WA 98682-4933.
- What is Peterson Tsai's phone number?
- The practice phone number listed in the NPPES registry for Peterson Tsai is (800) 813-2000.
- Does Peterson Tsai accept Medicare?
- Peterson Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peterson Tsai's NPI active?
- Yes — Peterson Tsai's NPI (1629054879) is active in the NPPES registry as of the last update on 2026-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.