Gregory A. Ertl, MD
Specialist · Yuma, AZ
Gregory A. Ertl, MD is a specialist with a practice address in Yuma, Arizona, and NPI 1427051184, issued on May 24, 2005. Check the license (Arizona 19732, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory A. Ertl
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 19732 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 350 W Catalina Dr, Yuma, AZ 85364
- Phone
- (928) 344-0650
- Enumerated
- May 24, 2005
- Record last updated
- Nov 30, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (928) 344-3928
- Entity
- Type 1 · individual
8 nearest specialist records → All 747 in Arizona → Look up another NPI →
Also registered at 350 W Catalina Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Veronica Hall, PA-CPhysician Assistant1104537117
Verify Gregory A. Ertl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 19732Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average specialist in 2024
60 Medicare Part D claims for 36 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Triamcinolone Acetonide22 claims
- Betamethasone Valerate11 claims
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): 71.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Gregory A. Ertl among 747 specialist records in Arizona
Gregory A. Ertl, MD is one of 747 specialist records with a practice address in Arizona. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 25% of these records are
- In the CMS Doctors and Clinicians fileNo · 16% of these records are
- Record last updated2016 · 83% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Arizona
There are 747 specialist records in Arizona.
All 747 in Arizona → Every provider in Yuma → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Engida Alemu, MDYuma, AZ 853641710916705
- Maher Awar, M.D.Yuma, AZ 853641124052154
- Habteab Feseha, M.D.Yuma, AZ 853641679665517
- Alan Horowitch, M.D.Yuma, AZ 853641629069117
- Steven Kurtz, D.P.T.Yuma, AZ 853641922076751
- David Meyer, MDYuma, AZ 853641073626560
- Gregory Peare, M.D.Yuma, AZ 853641215918883
- Shannon Portz RobinsonYuma, AZ 853641316356587
Common questions
What is Gregory A. Ertl, MD's NPI number?
Gregory A. Ertl, MD's National Provider Identifier (NPI) is 1427051184, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory A. Ertl, MD located?
The NPPES record lists a practice address at 350 W Catalina Dr, Yuma, AZ, 85364. Phone: (928) 344-0650. Providers update this record themselves, so call before visiting.
How can I verify Gregory A. Ertl, MD's license?
NPPES lists Arizona license number 19732, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory A. Ertl, MD prescribe under Medicare Part D?
In 2024, Gregory A. Ertl, MD had 60 Medicare Part D claims for 36 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Gregory A. Ertl, MD's MIPS final score?
The 2023 MIPS final score is 71.1 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.