NPPES file of Aug 9, 2026

Michael W. Loes, M.D.

Addiction Medicine (Internal Medicine) Physician · Phoenix, AZ

Michael W. Loes, M.D. is an addiction medicine (internal medicine) physician with a practice address in Phoenix, Arizona, and NPI 1033247630, issued on Mar 2, 2007. Check the license (Arizona 11336, 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
1033247630
Name
Michael W. Loes
Credential
M.D.
Primary taxonomy
Addiction Medicine (Internal Medicine) Physician 207RA0401X
License numbers
11336 AZ
MD11336 AZ
Self-reported in NPPES; status is on the state search
Practice location
11047 N 19TH Ave, Phoenix, AZ 85029
Phone
(602) 944-2222
Enumerated
Mar 2, 2007
Record last updated
Feb 17, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(602) 331-2499
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 11047 N 19TH Ave

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

  1. Joanne Chambos, FNPNurse Practitioner1861263394
  2. Yvette DeckerFamily Nurse Practitioner1992387054
  3. John Keck, N.P.Psychiatric/Mental Health Nurse Practitioner1215047766
  4. Julie Overbey, MS-FNPFamily Nurse Practitioner1730496282
  5. Betsy Whitesel, A.N.P.Adult Health Nurse Practitioner1861644999

Verify Michael W. Loes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 11336    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

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96% fewer Medicare Part D claims than the average addiction medicine (internal medicine) physician in 2024

34 Medicare Part D claims, against an average of 829 among the 401 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Michael Loes34
  2. Specialty average829

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Addiction Medicine (Internal Medicine) Physician providers in Arizona

There are 10 addiction medicine (internal medicine) physician records in Arizona.

All 10 in Arizona → Every provider in Phoenix →

Other addiction medicine (internal medicine) physician records in Arizona

  1. Miranda AndersonCottonwood, AZ1144849993
  2. Charles Brooker, D.O.Peoria, AZ1881823250
  3. Jay Caldwell, M.D.Tucson, AZ1346519071
  4. Robert Halligan, MDPhoenix, AZ1962516500
  5. Gerald Harris, DOPeoria, AZ1689676165
  6. J Jackson, D.O.Mesa, AZ1942262399
  7. Mark Keep, MDPhoenix, AZ1609859297
  8. Herman Singh, M.D.Phoenix, AZ1972038024
  9. Reyes Topete, MDPhoenix, AZ1487611158

Common questions

What is Michael W. Loes, M.D.'s NPI number?

Michael W. Loes, M.D.'s National Provider Identifier (NPI) is 1033247630, issued on Mar 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Michael W. Loes, M.D. located?

The NPPES record lists a practice address at 11047 N 19TH Ave, Phoenix, AZ, 85029. Phone: (602) 944-2222. Providers update this record themselves, so call before visiting.

How can I verify Michael W. Loes, M.D.'s license?

NPPES lists Arizona license number 11336, 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.

How much does Michael W. Loes, M.D. prescribe under Medicare Part D?

In 2024, Michael W. Loes, M.D. had 34 Medicare Part D claims; the average among addiction medicine (internal medicine) physician prescribers was 829. Part D covers Medicare prescriptions 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.