OrganizationActive
Jonathan D. Sierk, DDS, PC
NPI 1689257917 · Pediatric Dentistry · Highlands Ranch, CO
Jonathan D. Sierk, DDS, PC is a Pediatric Dentistry organization in Highlands Ranch, CO (NPI 1689257917).
Provider details
- NPI number
- 1689257917
- Entity type
- Organization
- Primary specialty
- Pediatric DentistryDental Providers
- Organization subpart
- No
- Authorized official
- Jonathan Sierk, Dentist/Owner(303) 865-4066
Specialties & taxonomies
Dental Providers
Profile Score
Established profile(62/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
6660 Timberline Rd Ste 240
Highlands Ranch, CO 80130-5345
Phone: (303) 865-4066
Fax: (303) 865-4067
Street-level locationGet directions
Mailing address
6660 Timberline Rd Ste 240
Highlands Ranch, CO 80130-5345
Other names (DBA / former)
- Doing business as
- Sierk Children'S Dentistry
Registry dates
- Enumerated
- 2021-05-04
- Last updated
- 2021-05-04
- Certified
- 2021-05-04
Frequently asked questions
- What is Jonathan D. Sierk, DDS, PC's NPI number?
- Jonathan D. Sierk, DDS, PC's National Provider Identifier (NPI) is 1689257917, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jonathan D. Sierk, DDS, PC?
- Jonathan D. Sierk, DDS, PC is classified in the NPPES registry as Pediatric Dentistry (Dental Providers).
- Where is Jonathan D. Sierk, DDS, PC located?
- Jonathan D. Sierk, DDS, PC's practice location on file with NPPES is 6660 Timberline Rd Ste 240, Highlands Ranch, CO 80130-5345.
- What is Jonathan D. Sierk, DDS, PC's phone number?
- The practice phone number listed in the NPPES registry for Jonathan D. Sierk, DDS, PC is (303) 865-4066.
- Who is the authorized official for Jonathan D. Sierk, DDS, PC?
- The authorized official listed on Jonathan D. Sierk, DDS, PC's NPPES record is Jonathan Sierk, Dentist/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jonathan D. Sierk, DDS, PC's NPI active?
- Yes — Jonathan D. Sierk, DDS, PC's NPI (1689257917) is active in the NPPES registry as of the last update on 2021-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.