Registry data as of Aug 27, 2026

Michael Gallizzi, MD

Orthopaedic Surgery Physician · Lone Tree, CO

Michael Gallizzi, MD is an orthopaedic surgery physician with a practice address in Lone Tree, Colorado, and NPI 1831327865, issued on Jun 29, 2009. Check the license (Colorado 55166, as entered in NPPES) on the Colorado 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
1831327865
Name
Michael Gallizzi
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License numbers
55166 CO
2009016703 MO
2014-00466 NC
Self-reported in NPPES; status is on the state search
Practice location
10107 Ridgegate Pkwy Ste 370, Lone Tree, CO 80124
Phone
(303) 790-7181
Enumerated
Jun 29, 2009
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 10107 Ridgegate Pkwy Ste 370

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

  1. Craig Hornbarger, M.D.Surgery Physician1316048192

Verify Michael Gallizzi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 55166
    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 Colorado 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.

91% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

31 Medicare Part D claims for 16 beneficiaries, against an average of 344 among the 17,387 providers of this specialty who prescribed in Part D.

  1. Michael Gallizzi31
  2. Specialty average344

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 practice group's Medicare quality score for 2023: 99.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score
  2. Costout of 100 · 30%
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $210,918.92

133 payments, mostly food and beverage; the largest payer was Arthrex, Inc.. The 15,866 providers of this specialty with any payment received $21,294.10 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Gallizzi$210,918.92
  2. Specialty average$21,294.10

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. Steadman Clinic Professional LLCVail, CO

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.

23 orthopaedic surgery physician records list a Lone Tree practice address

They are 23 of the 1,405 NPPES records with a Lone Tree practice address, and 568 orthopaedic surgery physician records in Colorado.

Other orthopaedic surgery physician records in Colorado

  1. Robert Adams, M.D.Glenwood Spgs, CO1689638793
  2. Amit Agarwala, MDGolden, CO1154383131
  3. Arnold Ahnfeldt, M.D.Colorado Springs, CO1396981387
  4. Paul Al-Attar, MDThornton, CO1871013714
  5. Ryan Albrecht, MDMontrose, CO1942595319
  6. Kris Alden, M.D., PHD.Basalt, CO1992842132
  7. Syed Ali, MDAurora, CO1538797758
  8. Richard Amendola, M.D.Vail, CO1588190979
  9. Sheena Amin-Joyce, MDAurora, CO1871171140
  10. Brett Anderson, MDColorado Springs, CO1124002449

Common questions

What is Michael Gallizzi, MD's NPI number?

Michael Gallizzi, MD's National Provider Identifier (NPI) is 1831327865, issued on Jun 29, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Michael Gallizzi, MD located?

The NPPES record lists a practice address at 10107 Ridgegate Pkwy Ste 370, Lone Tree, CO, 80124. Phone: (303) 790-7181. Providers update this record themselves, so call before visiting.

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

NPPES lists Colorado license number 55166, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael Gallizzi, MD prescribe under Medicare Part D?

In 2024, Michael Gallizzi, MD had 31 Medicare Part D claims for 16 beneficiaries; the average among orthopaedic surgery physician prescribers was 344. Part D covers Medicare prescriptions only.

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

The 2023 MIPS final score is 99.2 of 100, reported for the practice group. 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.