NPPES file of Aug 9, 2026

Eric J. Dierks, MD, DMD

Oral & Maxillofacial Surgery (D.M.D.) · Portland, OR

Eric J. Dierks, MD, DMD is an oral & maxillofacial surgery (d.m.d.) with a practice address in Portland, Oregon, and NPI 1265432025, issued on Jul 22, 2005. Check the license (Oregon MD16391, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265432025
Name
Eric J. Dierks
Credential
MD, DMD
Primary taxonomy
Oral & Maxillofacial Surgery (D.M.D.) 204E00000X
License numbers
MD16391 OR
D6708 OR
Self-reported in NPPES; status is on the state search
Practice location
1849 NW Kearney St, Portland, OR 97209
Phone
(503) 224-1371
Enumerated
Jul 22, 2005
Record last updated
Jun 11, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(503) 224-0722
Medicaid ID
008560 OR
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 oral & maxillofacial surgery (d.m.d.) records → All 28 in Oregon → Look up another NPI →

Also registered at 1849 NW Kearney St

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

  1. Allen Cheng, MD, DDSOral & Maxillofacial Surgery (D.M.D.)1043537707
  2. James Cuyler, MD, FRCSCPediatric Otolaryngology Physician1467452276
  3. Sherry Dickie, M.S. CCC-AAudiologist1578500880
  4. Karen Hoyt, RNFARegistered Nurse First Assistant1053643023
  5. Ashish Patel, MD, DDS,FACSOral & Maxillofacial Surgery (D.M.D.)1043415870
  6. Bryce Potter, MD, DMDOral & Maxillofacial Surgery (D.M.D.)1346249281

Verify Eric J. Dierks 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 MD16391    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $249.21

3 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 800 providers of this specialty with any payment received $1,463.03 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Eric Dierks$249.21
  2. Specialty average$1,463.03

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Eric J. Dierks among 28 oral & maxillofacial surgery (d.m.d.) records in Oregon

Eric J. Dierks, MD, DMD is one of 28 oral & maxillofacial surgery (d.m.d.) records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2018 · 82% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 204E00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Oral & Maxillofacial Surgery (D.M.D.) providers in Oregon

There are 28 oral & maxillofacial surgery (d.m.d.) records in Oregon.

All 28 in Oregon → Every provider in Portland → Oral & Maxillofacial Surgery (D.M.D.) nationwide →

The 8 oral & maxillofacial surgery (d.m.d.) records with the nearest ZIP codes

  1. Allen Cheng, MD, DDSPortland, OR 972091043537707
  2. Marcus Couey, MDPortland, OR 972091588939961
  3. Baber Khatib, MD, DDSPortland, OR 972091356662845
  4. Ashish Patel, MD, DDS,FACSPortland, OR 972091043415870
  5. Bryce Potter, MD, DMDPortland, OR 972091346249281
  6. Lance Thompson, MD, DDSPortland, OR 972091861874760
  7. Felix Sim, MBBS, BDSPortland, OR 972101104209386
  8. Richard Bell, MD, DDSPortland, OR 972131992704878

Common questions

What is Eric J. Dierks, MD, DMD's NPI number?

Eric J. Dierks, MD, DMD's National Provider Identifier (NPI) is 1265432025, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Eric J. Dierks, MD, DMD located?

The NPPES record lists a practice address at 1849 NW Kearney St, Portland, OR, 97209. Phone: (503) 224-1371. Providers update this record themselves, so call before visiting.

How can I verify Eric J. Dierks, MD, DMD's license?

NPPES lists Oregon license number MD16391, 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. Medicare files from data.cms.gov. 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.