Dr. Peterson T. Tsai, DO
- Medicare services, 2016
- 17
- Part D claims, 2024
- 8,495
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 7101 Ne 137th Ave, Vancouver, WA 98682
- Practice phone
- Call (503) 813-2440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Foundation Health Plan of the Northwest
Vancouver, Washington
Find Dr. Tsai's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Peterson T. Tsai is a general practice physician in Vancouver, Washington
Dr. Tsai practices at Kaiser Foundation Health Plan of the Northwest in Vancouver, Washington.
Dr. Tsai's NPI, 1629054879, was assigned on December 20, 2005. Dr. Tsai graduated from University of North Texas Hsc, College of Osteopathic Med in 2001. Dr. Tsai holds California license 20A8341.
- NPI
- 1629054879NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234143546
- NPI enumeration date
- December 20, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 813-2440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peterson T. Tsai practices at Kaiser Foundation Health Plan of the Northwest in Vancouver, Washington
Dr. Tsai's primary practice is Kaiser Foundation Health Plan of the Northwest, at 7101 Ne 137th Ave, Vancouver, WA 98682 in Clark County. The practice phone is (503) 813-2440.
- Kaiser Foundation Health Plan of the Northwest7101 Ne 137th Ave, Vancouver, WA 98682 · Clark CountyPhone(503) 813-2440
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peterson T. Tsai is affiliated with 2 sites of care and 1 medical group
Dr. Tsai's primary practice is Kaiser Foundation Health Plan of the Northwest in Vancouver, Washington. The medical group on file is Kaiser Permanente Northwest. Dmand AI also links Dr. Tsai to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Peterson T. Tsai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsai practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Foundation Health Plan of the Northwest | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peterson T. Tsai is one of 238 general practice physicians in Washington
General practice is Dr. Tsai's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Tsai is licensed in California.
Specialties and state licenses
- General practice, CaliforniaPrimary
General practice physicians near Dr. Tsai
Counts of general practice physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Peterson T. Tsai billed Medicare for 17 services in 2016
CMS data shows 17 Medicare services from Dr. Tsai across 1 procedure code in 2016, all of them office visits. Medicare paid $724 for them. Every service was in an office.
Dr. Tsai compared with the Washington median for general practice physicians, 2016
- Dr. Tsai
- Washington median
- Medicare services
- 17vs 12687% below
- Part D claims
- 7,849vs 8592.3 times
Medians across 117 general practice physicians in Washington with Dmand AI profiles that report each measure.
Dr. Tsai's most billed Medicare procedure codes, 2016
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tsai and other general practice physicians in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peterson T. Tsai's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Tsai's median patient age at 55, with 45% women.
Dr. Tsai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Peterson T. Tsai wrote 8,495 Medicare Part D claims in 2024
In 2024, Dr. Tsai wrote 8,495 Medicare Part D claims for 1,117 patients. 89% of them were for generic drugs. CMS names the drug for 7,849 of them, across 121 drugs with 11 or more claims each, at $304,510 in total drug cost. In 2023, CMS named 7,709 claims across 117 drugs.
Dr. Tsai's Part D claims by kind of drug, 2024
- Generic7,585 claims89%
- Brand-name811 claims10%
- Other99 claims1%
Dr. Tsai's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Tsai's Part D claims, 2024
- Opioids8%679 of 8,495 claims
- Antibiotics2%144 of 8,495 claims
- Antipsychotics, patients 65 and over0%28 of 8,495 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7,7092024: 7,8492%
Drugs named by CMS: 121 in 2024, 117 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Peterson T. Tsai takes part in Medicare
Dr. Tsai accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Peterson T. Tsai graduated from University of North Texas Hsc, College of Osteopathic Med
Dr. Tsai graduated from University of North Texas Hsc, College of Osteopathic Med in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peterson T. Tsai's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Peterson T. Tsai
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Peterson T. Tsai's NPI number?
Dr. Peterson T. Tsai's NPI number is 1629054879. It was assigned on December 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Peterson T. Tsai?
Dr. Peterson T. Tsai is a general practice physician in Vancouver, Washington. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Peterson T. Tsai practice?
Dr. Tsai practices at 7101 Ne 137th Ave, Vancouver, WA 98682. Dr. Tsai's primary practice is Kaiser Foundation Health Plan of the Northwest in Vancouver, Washington. Dmand AI also links Dr. Tsai to 1 group practice or clinic.
What is Dr. Peterson T. Tsai's office phone number?
The practice phone on file for Dr. Tsai is (503) 813-2440.
What is Dr. Peterson T. Tsai's medical license number?
Dr. Tsai holds California license 20A8341.
What medical group is Dr. Peterson T. Tsai part of?
Dr. Tsai is linked to Kaiser Permanente Northwest.
Does Dr. Peterson T. Tsai accept Medicare?
Yes. CMS data shows Dr. Tsai billed Medicare for 17 services in 2016, and Dr. Tsai accepts Medicare assignment.
What services does Dr. Peterson T. Tsai bill to Medicare?
In 2016, Dr. Tsai's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Peterson T. Tsai go to medical school?
Dr. Tsai graduated from University of North Texas Hsc, College of Osteopathic Med in 2001.
What drugs does Dr. Peterson T. Tsai prescribe most?
In 2024 Medicare Part D data, Dr. Tsai's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
How long has Dr. Peterson T. Tsai been practicing?
Dr. Tsai graduated from medical school in 2001, 25 years ago.
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