Ernesto A. Diaz-Ordaz, MD
Otolaryngology Physician · Williamsville, NY
Ernesto A. Diaz-Ordaz, MD is an otolaryngology physician with a practice address in Williamsville, New York, and NPI 1114965738, issued on Jun 4, 2006. Check the license (New York 160661, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ernesto A. Diaz-Ordaz
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 160661 NY
Self-reported in NPPES; status is on the state search - Practice location
- 180 Park Club LN, Williamsville, NY 14221
- Phone
- (716) 634-7350
- Enumerated
- Jun 4, 2006
- Record last updated
- Apr 27, 2026
- Fax
- (716) 634-7656
- Medicaid ID
- 01442699 NY
- Medicare enrollment
- Enrolled (PECOS I20071126000429); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 765 in New York → Look up another NPI →
Also registered at 180 Park Club LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Monica Bailey, PAPhysician Assistant1942651468
- Gregory Czajka, RPA CPhysician Assistant1740265537
- Lyndsay Gutierrez-Panchal, MDSurgery Physician1235360629
- Anne Klein, RPA-CPhysician Assistant1386844249
- Melanie Marien, RPA CSurgical Physician Assistant1851377154
- Brian May, RPA CSurgical Physician Assistant1134105422
Verify Ernesto A. Diaz-Ordaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 160661Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average otolaryngology physician in 2024
36 Medicare Part D claims for 20 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Ipratropium Bromide11 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 practice group's MIPS final score for 2023 (Medicare payment program): 94.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Ernesto A. Diaz-Ordaz among 765 otolaryngology physician records in New York
Ernesto A. Diaz-Ordaz, MD is one of 765 otolaryngology physician records with a practice address in New York. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 46% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1979 · median 2001 among the 542 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in New York
There are 765 otolaryngology physician records in New York.
All 765 in New York → Every provider in Williamsville → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Steven Buck, MDWilliamsville, NY 142211932197449
- Jacob Fried, MDBuffalo, NY 142211134708225
- Gerald Jeyapalan, M.D.Williamsville, NY 142211801092937
- Sayeed Nabi, M.D.Williamsville, NY 142211306899380
- Samuel Reyes, MD PHDWilliamsville, NY 142211598976391
- John Stanievich, MDWilliamsville, NY 142211851333892
- Peter Campione, MDBuffalo, NY 142201801851803
- Jon Chan, M.D.Buffalo, NY 142221053577924
Common questions
What is Ernesto A. Diaz-Ordaz, MD's NPI number?
Ernesto A. Diaz-Ordaz, MD's National Provider Identifier (NPI) is 1114965738, issued on Jun 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ernesto A. Diaz-Ordaz, MD located?
The NPPES record lists a practice address at 180 Park Club LN, Williamsville, NY, 14221. Phone: (716) 634-7350. Providers update this record themselves, so call before visiting.
How can I verify Ernesto A. Diaz-Ordaz, MD's license?
NPPES lists New York license number 160661, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ernesto A. Diaz-Ordaz, MD prescribe under Medicare Part D?
In 2024, Ernesto A. Diaz-Ordaz, MD had 36 Medicare Part D claims for 20 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Ernesto A. Diaz-Ordaz, MD's MIPS final score?
The 2023 MIPS final score is 94.3 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), 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.