NPPES file of Aug 9, 2026

Erich Clair Lieberknecht, DC

Chiropractor · Portland, OR

Erich Clair Lieberknecht, DC is a chiropractor with a practice address in Portland, Oregon, and NPI 1922230879, issued on Aug 11, 2009. Check the license (Oregon 3946, 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
1922230879
Name
Erich Clair Lieberknecht
Credential
DC
Primary taxonomy
Chiropractor 111N00000X
License number
3946 OR
Self-reported in NPPES; status is on the state search
Practice location
4636 SE Center St, Portland, OR 97206
Phone
(503) 757-4846
Enumerated
Aug 11, 2009
Record last updated
Aug 11, 2009 (not updated in 17 years: call before relying on the address or phone)
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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Verify Erich Clair Lieberknecht 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 3946    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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582 chiropractor records list a practice address in Portland

They are 582 of the 42,088 NPPES records with a practice address in Portland, and 1,881 chiropractor records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 582 in Portland → All 1,881 in Oregon → Every provider in Portland →

Other chiropractor records in Oregon

  1. Anna Abbott, DCPortland, OR1235799818
  2. Scott Abrahamson, D.C.Lake Oswego, OR1437363322
  3. Ruben Acevedo, D.C.Roseburg, OR1700445210
  4. Kent Achtyes, D.C.Portland, OR1659590388
  5. Morgan AckermannMilwaukie, OR1831872449
  6. Cory Adams, DCPortland, OR1386507945
  7. Mark Adams, D.C.Ashland, OR1225100571
  8. Perry Adams, D.C.Waldport, OR1134386766
  9. Susan Addison, DCPortland, OR1225223597
  10. Charles Affatato, D.C.Salem, OR1740303130

Common questions

What is Erich Clair Lieberknecht, DC's NPI number?

Erich Clair Lieberknecht, DC's National Provider Identifier (NPI) is 1922230879, issued on Aug 11, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Erich Clair Lieberknecht, DC located?

The NPPES record lists a practice address at 4636 SE Center St, Portland, OR, 97206. Phone: (503) 757-4846. Providers update this record themselves, so call before visiting.

How can I verify Erich Clair Lieberknecht, DC's license?

NPPES lists Oregon license number 3946, 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.