NPPES file of Aug 9, 2026

William Louie Quan, M.D.

Anesthesiology Physician · Cottonwood, AZ

William Louie Quan, M.D. is an anesthesiology physician with a practice address in Cottonwood, Arizona, and NPI 1568614410, issued on Oct 22, 2008. Check the license (Arizona 41910, as entered in NPPES) on the Arizona Medical Board; 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
1568614410
Name
William Louie Quan
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
41910 AZ
35.130383 OH
Self-reported in NPPES; status is on the state search
Practice location
269 S Candy LN, Cottonwood, AZ 86326
Phone
(928) 639-6150
Enumerated
Oct 22, 2008
Record last updated
Sep 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(928) 639-6561
Medicaid ID
442433 AZ
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 269 S Candy LN

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

  1. Hussein Alasady, MDHospitalist Physician1003473901
  2. Miranda AndersonAddiction Medicine (Internal Medicine) Physician1144849993
  3. Peter Andress, CRNACertified Registered Nurse Anesthetist1508819855
  4. Tish Arwine, FNP-CFamily Nurse Practitioner1124576434
  5. Jehangir Bastani, M.D.Psychiatry Physician1366497745
  6. Joseph Bergerson, M.D.Hospitalist Physician1558658369

Verify William Louie Quan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 41910
    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 Arizona 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: $15.44

1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Quan$15.44
  2. Specialty average$669.59

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

William Louie Quan among 1,473 anesthesiology physician records in Arizona

William Louie Quan, M.D. is one of 1,473 anesthesiology physician records with a practice address in Arizona. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.

  • NPI issued2008 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2020 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 anesthesiology physician records list a practice address in Cottonwood

They are 17 of the 555 NPPES records with a practice address in Cottonwood, and 1,473 anesthesiology physician records in Arizona.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Ann Carlson, MDCottonwood, AZ 863261356313860
  2. David Crowell, M.D.Cottonwood, AZ 863261396741229
  3. Anthony Davis, MDCottonwood, AZ 863261598713695
  4. Amy Gottschalk, M.D.Cottonwood, AZ 863261386797538
  5. Robert Gresens, DOCottonwood, AZ 863261548276249
  6. Gary Gridley, M.D.Cottonwood, AZ 863261336120260
  7. Brian Launius, MDCottonwood, AZ 863261508850637
  8. William Levinger, MDCottonwood, AZ 863261407883200

Common questions

What is William Louie Quan, M.D.'s NPI number?

William Louie Quan, M.D.'s National Provider Identifier (NPI) is 1568614410, issued on Oct 22, 2008. An NPI identifies a provider in billing; it is not a license.

Where is William Louie Quan, M.D. located?

The NPPES record lists a practice address at 269 S Candy LN, Cottonwood, AZ, 86326. Phone: (928) 639-6150. Providers update this record themselves, so call before visiting.

How can I verify William Louie Quan, M.D.'s license?

NPPES lists Arizona license number 41910, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. 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. Medicare files from data.cms.gov. 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.