IndividualActive
Mark Tsai
NPI 1790182152 · Adult Companion · Portland, OR
Mark Tsai is a Adult Companion provider in Portland, OR (NPI 1790182152).
Provider details
- NPI number
- 1790182152
- Entity type
- Individual
- Primary specialty
- Adult CompanionNursing Service Related Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Nursing Service Related Providers
Profile Score
Established profile(68/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
847 Ne 19th Ave
Suite 100
Portland, OR 97232-2684
Phone: (503) 238-0769
Street-level locationGet directions
Mailing address
Po Box 8459
Portland, OR 97207-8459
Registry dates
- Enumerated
- 2014-12-01
- Last updated
- 2014-12-01
Frequently asked questions
- What is Mark Tsai's NPI number?
- Mark Tsai's National Provider Identifier (NPI) is 1790182152, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Tsai's specialty?
- Mark Tsai is listed in the NPPES registry with a primary specialty of Adult Companion (Nursing Service Related Providers).
- Where is Mark Tsai located?
- Mark Tsai's practice location on file with NPPES is 847 Ne 19th Ave, Portland, OR 97232-2684.
- What is Mark Tsai's phone number?
- The practice phone number listed in the NPPES registry for Mark Tsai is (503) 238-0769.
- Is Mark Tsai's NPI active?
- Yes — Mark Tsai's NPI (1790182152) is active in the NPPES registry as of the last update on 2014-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.