Geraldine C. Diaz, D.O.
Anesthesiology Physician · Brentwood, NY
Geraldine C. Diaz, D.O. is an anesthesiology physician with a practice address in Brentwood, New York, and NPI 1003987967, issued on Nov 13, 2006. Check the license (New York 225683, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Geraldine C. Diaz
- Credential
- D.O.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 225683 NY
036126434 IL
Self-reported in NPPES; status is on the state search - Practice location
- 601 Suffolk Ave, Brentwood, NY 11717
- Phone
- (631) 231-4455
- Enumerated
- Nov 13, 2006
- Record last updated
- Jan 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20070124000564); may accept Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2001
- Entity
- Type 1 · individual
Also registered at 601 Suffolk Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Adams, P.AMedical Physician Assistant1790957165
- Aaron Avni, MDOphthalmology Physician1134155682
- Eve Charasz, MDAnesthesiology Physician1558397539
- Angela Chionchio, FNP-CFamily Nurse Practitioner1366260242
- Michelle Di Guglielmo, MDAnesthesiology Physician1578730354
- Christopher First, DMDOral and Maxillofacial Surgery (Dentist)1831133362
Verify Geraldine C. Diaz 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 225683Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3 hospitals and group practices
- Montefiore Medical CenterBronx, NY · Acute Care Hospitals3 of 5 stars
- North American Partners IN Anesthesia LLPBrentwood, NY
- Sedation Vacation Perioperative Medicine PLLCBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Anesthesiology Physician providers in New York
There are 5,062 anesthesiology physician records in New York.
Other anesthesiology physician records in New York
- Daniel Aaron, MDOceanside, NY1376506766
- Nelson Aaron, MDNewburgh, NY1720079338
- Jaime AaronsonNew York, NY1114160074
- Adel Abadir, MDBrooklyn, NY1376584151
- Chinedu Abara, MDTroy, NY1023010212
- Vyachislav Abayev, M.D.Brooklyn, NY1437394574
- Nabil Abdelmalak, MDStaten Island, NY1528097250
- Mark Abel, M.D.Brooklyn, NY1952383622
- Richard Abel, M.D.New York, NY1508148016
- Jason James Abella, M.DEast Meadow, NY1811420912
Common questions
What is Geraldine C. Diaz, D.O.'s NPI number?
Geraldine C. Diaz, D.O.'s National Provider Identifier (NPI) is 1003987967, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Geraldine C. Diaz, D.O. located?
The NPPES record lists a practice address at 601 Suffolk Ave, Brentwood, NY, 11717. Phone: (631) 231-4455. Providers update this record themselves, so call before visiting.
How can I verify Geraldine C. Diaz, D.O.'s license?
NPPES lists New York license number 225683, 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.
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.