OrganizationActive
Richard D. Allen, D.D.S., P.C.
NPI 1205962594 · Endodontics · Sioux Falls, SD
Richard D. Allen, D.D.S., P.C. is a Endodontics organization in Sioux Falls, SD (NPI 1205962594).
Provider details
- NPI number
- 1205962594
- Entity type
- Organization
- Primary specialty
- EndodonticsDental Providers
- Organization subpart
- No
- Authorized official
- Tammra Or Richard Allen, Office Manager Or D.D.S. President(605) 221-0218
- License
- M850 (SD)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(90/100 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
1704 S Cleveland Ave
Suite 6
Sioux Falls, SD 57103-3902
Phone: (605) 221-0218
Fax: (605) 221-0220
Street-level locationGet directions
Mailing address
1704 S Cleveland Ave
Sioux Falls, SD 57103-3902
Registry dates
- Enumerated
- 2007-02-23
- Last updated
- 2020-08-22
Frequently asked questions
- What is Richard D. Allen, D.D.S., P.C.'s NPI number?
- Richard D. Allen, D.D.S., P.C.'s National Provider Identifier (NPI) is 1205962594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Richard D. Allen, D.D.S., P.C.?
- Richard D. Allen, D.D.S., P.C. is classified in the NPPES registry as Endodontics (Dental Providers).
- Where is Richard D. Allen, D.D.S., P.C. located?
- Richard D. Allen, D.D.S., P.C.'s practice location on file with NPPES is 1704 S Cleveland Ave, Sioux Falls, SD 57103-3902.
- What is Richard D. Allen, D.D.S., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Richard D. Allen, D.D.S., P.C. is (605) 221-0218.
- Who is the authorized official for Richard D. Allen, D.D.S., P.C.?
- The authorized official listed on Richard D. Allen, D.D.S., P.C.'s NPPES record is Tammra Or Richard Allen, Office Manager Or D.D.S. President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Richard D. Allen, D.D.S., P.C.'s NPI active?
- Yes — Richard D. Allen, D.D.S., P.C.'s NPI (1205962594) 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.