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Mark Sapirstein, M.D.
NPI 1659485167 · Specialist · Longview, WA
Mark Sapirstein, M.D. is a Specialist provider in Longview, WA (NPI 1659485167).
Provider details
- NPI number
- 1659485167
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD00015702 (WA)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% 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
1106 Douglas St
Suite D
Longview, WA 98632-2497
Phone: (360) 423-0088
Fax: (360) 414-7251
Street-level locationGet directions
Mailing address
1106 Douglas St
Longview, WA 98632-2497
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2007-07-09
Frequently asked questions
- What is Mark Sapirstein's NPI number?
- Mark Sapirstein's National Provider Identifier (NPI) is 1659485167, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Sapirstein's specialty?
- Mark Sapirstein is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mark Sapirstein located?
- Mark Sapirstein's practice location on file with NPPES is 1106 Douglas St, Longview, WA 98632-2497.
- What is Mark Sapirstein's phone number?
- The practice phone number listed in the NPPES registry for Mark Sapirstein is (360) 423-0088.
- Is Mark Sapirstein's NPI active?
- Yes — Mark Sapirstein's NPI (1659485167) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.