Registry data as of Aug 27, 2026

Michael Diesenhouse, MD

Ophthalmology Physician · Tucson, AZ

Michael Diesenhouse, MD is an ophthalmology physician with a practice address in Tucson, Arizona, and NPI 1568548923, issued on Oct 28, 2006. Check the license (Arizona 22054, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1568548923
Name
Michael Diesenhouse
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
22054 AZ
Self-reported in NPPES; status is on the state search
Practice location
5240 E Knight Dr, Tucson, AZ 85712
Phone
(520) 795-4202
Enumerated
Oct 28, 2006
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 5240 E Knight Dr

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

  1. Adriana-Maria Boiangiu, M.DPsychiatry Physician1396024741
  2. Bruce Dalkin, MDUrology Physician1700086089
  3. Raymond Graap, M.D.Endocrinology, Diabetes & Metabolism Physician1720024656
  4. Solomon Grossman, PH.D.Mental Health Counselor1528069838
  5. Barton Hodes, MDOphthalmology Physician1205911823
  6. Robert Hyland, M.D.Infectious Disease Physician1104855832

Verify Michael Diesenhouse in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 22054
    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.

98% fewer Medicare Part D claims than the average ophthalmology physician in 2024

25 Medicare Part D claims for 20 beneficiaries, against an average of 1,490 among the 16,109 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Michael Diesenhouse25
  2. Specialty average1,490

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.

The Medicare quality score for 2023: 76.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%20.7
  3. Promoting interoperabilityout of 100 · 25%
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $878.90

12 payments, mostly food and beverage; the largest payer was Glaukos Corporation. The 12,922 providers of this specialty with any payment received $4,937.17 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Diesenhouse$878.90
  2. Specialty average$4,937.17

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

One hospital or facility affiliation

  1. Eye Associates LtdTucson, AZ

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Ophthalmology Physician providers in Arizona

There are 359 ophthalmology physician records in Arizona.

Other ophthalmology physician records in Arizona

  1. Jack Aaron, MDTucson, AZ1043293566
  2. David Abbott, M.D.Phoenix, AZ1881891257
  3. Daniel Adelberg, MDMesa, AZ1225000557
  4. Elahhe Afkhamnejad, M.D.Phoenix, AZ1659993897
  5. Norman Ahl, MDTucson, AZ1144296278
  6. Joseph Aiello, MDScottsdale, AZ1801866553
  7. Patrick Aiello, MDYuma, AZ1235124744
  8. Aaron Amacher, M.D.Phoenix, AZ1700856283
  9. Jay Arora, M.D.Scottsdale, AZ1306259106
  10. James Arthur, M.D.Prescott, AZ1487625679

Common questions

What is Michael Diesenhouse, MD's NPI number?

Michael Diesenhouse, MD's National Provider Identifier (NPI) is 1568548923, issued on Oct 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Diesenhouse, MD located?

The NPPES record lists a practice address at 5240 E Knight Dr, Tucson, AZ, 85712. Phone: (520) 795-4202. Providers update this record themselves, so call before visiting.

How can I verify Michael Diesenhouse, MD's license?

NPPES lists Arizona license number 22054, 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 Diesenhouse, MD prescribe under Medicare Part D?

In 2024, Michael Diesenhouse, MD had 25 Medicare Part D claims for 20 beneficiaries; the average among ophthalmology physician prescribers was 1,490. Part D covers Medicare prescriptions only.

What is Michael Diesenhouse, MD's Medicare quality score?

The 2023 MIPS final score is 76.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.