NPPES file of Aug 9, 2026

John Zwiacher, M.D.

Surgery Physician · Palmer, AK

John Zwiacher, M.D. is a surgery physician with a practice address in Palmer, Alaska, and NPI 1457380438, issued on Jul 1, 2006. Check the license (Alaska 3719, as entered in NPPES) on the Alaska State Medical Board; 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
1457380438
Name
John Zwiacher
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
3719 AK
Self-reported in NPPES; status is on the state search
Practice location
2490 S Woodworth Loop, Palmer, AK 99645
Phone
(907) 357-1917
Enumerated
Jul 1, 2006
Record last updated
Jun 17, 2008 (not updated in 18 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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Also registered at 2490 S Woodworth Loop

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

  1. Megan Ferguson, CNMAdvanced Practice Midwife1487017877
  2. Stacey Hayward, NPNurse Practitioner1942236054
  3. Brianna Nye, PA-CPhysician Assistant1972842326
  4. Andrew Pulliam, M.D.Otolaryngology/Facial Plastic Surgery Physician1134160120
  5. Sharon Schaefer, MDSurgery Physician1932157245
  6. Suesue ScottNurse Practitioner1871208389

Verify John Zwiacher in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlaska State Medical Board
    Search for license 3719
    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
Open the Alaska license search

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7 surgery physician records list a practice address in Palmer

They are 7 of the 771 NPPES records with a practice address in Palmer, and 98 surgery physician records in Alaska. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other surgery physician records in Alaska

  1. Rene Alvarez, MDHomer, AK1578612578
  2. Robert Artwohl, MD PCAnchorage, AK1841283256
  3. Nicholas Bahl, MDWasilla, AK1083149777
  4. Charles Baldwin, M.D.Anchorage, AK1831418490
  5. Rebecca Barnes, M.D.Anchorage, AK1710249602
  6. Wesley Barry, M.D.Anchorage, AK1205207719
  7. Laurie Bleicher, MDAnchorage, AK1861566143
  8. Iuliana Bobanga, M.D.Wasilla, AK1013232214
  9. M Boling, D.O.Homer, AK1760491179
  10. Cathy Brenner, MDEagle River, AK1780725820

Common questions

What is John Zwiacher, M.D.'s NPI number?

John Zwiacher, M.D.'s National Provider Identifier (NPI) is 1457380438, issued on Jul 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Zwiacher, M.D. located?

The NPPES record lists a practice address at 2490 S Woodworth Loop, Palmer, AK, 99645. Phone: (907) 357-1917. Providers update this record themselves, so call before visiting.

How can I verify John Zwiacher, M.D.'s license?

NPPES lists Alaska license number 3719, as entered by the provider. Search the Alaska State Medical Board at https://www.commerce.alaska.gov/web/cbpl/ProfessionalLicensing/StateMedicalBoard.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

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.