NPPES file of Aug 9, 2026

Christopher R. Sierk, D.D.S.

Orthodontics and Dentofacial Orthopedics Dentistry · Tigard, OR

Christopher R. Sierk, D.D.S. is an orthodontics and dentofacial orthopedics dentistry with a practice address in Tigard, Oregon, and NPI 1104001106, issued on Jan 8, 2008. Check the license (Oregon D7192, as entered in NPPES) with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104001106
Name
Christopher R. Sierk
Credential
D.D.S.
Primary taxonomy
Orthodontics and Dentofacial Orthopedics Dentistry 1223X0400X
License number
D7192 OR
Self-reported in NPPES; status is on the state search
Practice location
11565 SW Hall Blvd, Tigard, OR 97223
Phone
(503) 620-6606
Enumerated
Jan 8, 2008
Record last updated
Jan 8, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(503) 624-6382
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest orthodontics and dentofacial orthopedics dentistry records → All 190 in Oregon → Look up another NPI →

Also registered at 11565 SW Hall Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christopher Grenzer, D.M.D.General Practice Dentistry1467459164
  2. Wen Jiang, L.ACAcupuncturist1548428550
  3. Richard Johnson, DMD PCDentist1710973151

Verify Christopher R. Sierk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license D7192    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Oregon license search

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Christopher R. Sierk among 190 orthodontics and dentofacial orthopedics dentistry records in Oregon

Christopher R. Sierk, D.D.S. is one of 190 orthodontics and dentofacial orthopedics dentistry records with a practice address in Oregon. 53% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 39% newer
  • In a Medicare fileNo · 53% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2008 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223X0400X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthodontics and Dentofacial Orthopedics Dentistry providers in Oregon

There are 190 orthodontics and dentofacial orthopedics dentistry records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 190 in Oregon → Every provider in Tigard → Orthodontics and Dentofacial Orthopedics Dentistry nationwide →

The 8 orthodontics and dentofacial orthopedics dentistry records with the nearest ZIP codes

  1. Troy Bacon, D.D.STigard, OR 972231154692911
  2. Andrew Godzyk, DMDMilwaukie, OR 972221003251596
  3. Bryce Willcox, DMD, MSTigard, OR 972241134102999
  4. Roger Wooley, DMDMilwaukie, OR 972221629242367
  5. Tamara Justus, DDS, MSDPortland, OR 972251437581881
  6. Catherine Miller, DMDPortland, OR 972251750694592
  7. Vonny Ngantung, D.D.S.Portland, OR 972251760502546
  8. Tracy Ouyang, D.D.SPortland, OR 972211700091790

Common questions

What is Christopher R. Sierk, D.D.S.'s NPI number?

Christopher R. Sierk, D.D.S.'s National Provider Identifier (NPI) is 1104001106, issued on Jan 8, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Christopher R. Sierk, D.D.S. located?

The NPPES record lists a practice address at 11565 SW Hall Blvd, Tigard, OR, 97223. Phone: (503) 620-6606. Providers update this record themselves, so call before visiting.

How can I verify Christopher R. Sierk, D.D.S.'s license?

NPPES lists Oregon license number D7192, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.