NPPES file of Aug 9, 2026

Gene David Prendergast, D.O.

Orthopaedic Surgery Physician · Green Valley, AZ

Gene David Prendergast, D.O. is an orthopaedic surgery physician with a practice address in Green Valley, Arizona, and NPI 1144370446, issued on Jan 11, 2007. Check the license 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144370446
Name
Gene David Prendergast
Credential
D.O.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
A-1607-11 NM
Self-reported in NPPES; status is on the state search
Practice location
4485 S 1-19 Frontage Road, Green Valley, AZ 85614
Phone
(866) 974-2673
Enumerated
Jan 11, 2007
Record last updated
Oct 22, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(866) 939-2673
Medicare enrollment
Enrolled (PECOS I20110912000739); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Gene David Prendergast in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical BoardCheck 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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95% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

19 Medicare Part D claims for 14 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gene Prendergast19
  2. Specialty average346

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 MIPS final score for 2023 (Medicare payment program): 89.3 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 score78.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Bills Medicare through one group practice

  1. Taos Professional Services,llcTaos, NM

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gene David Prendergast among 462 orthopaedic surgery physician records in Arizona

Gene David Prendergast, D.O. is one of 462 orthopaedic surgery physician records with a practice address in Arizona. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.

  • NPI issued2007 · 49% of these records are older, 39% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1979 · median 2003 among the 281 with a school on file
  • Record last updated2015 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Arizona

There are 462 orthopaedic surgery physician records in Arizona.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Alex Verhoogen, MDGreen Valley, AZ 856141043204894
  2. Scott Slagis, MDBisbee, AZ 856031407857196
  3. David Bachman, MDSahuarita, AZ 856291538697016
  4. Mark Kowalski, MDSahuarita, AZ 856291104822790
  5. William McCormick, DOSierra Vista, AZ 856351720008105
  6. Laurence Susini, MDSierra Vista, AZ 856351588603179
  7. Rex Bryce, M.D.Safford, AZ 855461114973153
  8. Jacob Henrichsen, MDSafford, AZ 855461972162626

Common questions

What is Gene David Prendergast, D.O.'s NPI number?

Gene David Prendergast, D.O.'s National Provider Identifier (NPI) is 1144370446, issued on Jan 11, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gene David Prendergast, D.O. located?

The NPPES record lists a practice address at 4485 S 1-19 Frontage Road, Green Valley, AZ, 85614. Phone: (866) 974-2673. Providers update this record themselves, so call before visiting.

How can I verify Gene David Prendergast, D.O.'s license?

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 Gene David Prendergast, D.O. prescribe under Medicare Part D?

In 2024, Gene David Prendergast, D.O. had 19 Medicare Part D claims for 14 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Gene David Prendergast, D.O.'s MIPS final score?

The 2023 MIPS final score is 89.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.