OrganizationActive
Mark R. Grace, D.D.S., PLLC
NPI 1477750909 · Dentist · Seattle, WA
Mark R. Grace, D.D.S., PLLC is a Dentist organization in Seattle, WA (NPI 1477750909).
Provider details
- NPI number
- 1477750909
- Entity type
- Organization
- Primary specialty
- DentistDental Providers
- Organization subpart
- No
- Authorized official
- Mark Grace, Member(206) 623-5546
- License
- 7264 (WA)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(89/100 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
509 Olive Way
Suite 1242
Seattle, WA 98101-1720
Phone: (206) 623-5546
Street-level locationGet directions
Mailing address
509 Olive Way
Seattle, WA 98101-1720
Registry dates
- Enumerated
- 2007-06-28
- Last updated
- 2020-08-22
Frequently asked questions
- What is Mark R. Grace, D.D.S., PLLC's NPI number?
- Mark R. Grace, D.D.S., PLLC's National Provider Identifier (NPI) is 1477750909, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark R. Grace, D.D.S., PLLC?
- Mark R. Grace, D.D.S., PLLC is classified in the NPPES registry as Dentist (Dental Providers).
- Where is Mark R. Grace, D.D.S., PLLC located?
- Mark R. Grace, D.D.S., PLLC's practice location on file with NPPES is 509 Olive Way, Seattle, WA 98101-1720.
- What is Mark R. Grace, D.D.S., PLLC's phone number?
- The practice phone number listed in the NPPES registry for Mark R. Grace, D.D.S., PLLC is (206) 623-5546.
- Who is the authorized official for Mark R. Grace, D.D.S., PLLC?
- The authorized official listed on Mark R. Grace, D.D.S., PLLC's NPPES record is Mark Grace, Member. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark R. Grace, D.D.S., PLLC's NPI active?
- Yes — Mark R. Grace, D.D.S., PLLC's NPI (1477750909) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.