Maria D. Diaz, NP
Family Nurse Practitioner · Middletown, NY
Maria D. Diaz, NP is a family nurse practitioner with a practice address in Middletown, New York, and NPI 1457532723, issued on Nov 15, 2007. Check the license (New York 336990, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria D. Diaz
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 336990 NY
423706 NY
F420537-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 111 Maltese Dr, Middletown, NY 10940
- Phone
- (845) 342-4774
- Enumerated
- Nov 15, 2007
- Record last updated
- Mar 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (845) 818-7555
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 14,805 in New York → Look up another NPI →
Also registered at 111 Maltese Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Allen, M.D.Obstetrics & Gynecology Physician1023217148
- Koshnaf Antar, MDRheumatology Physician1720194152
- Michelle Appelbaum, DNSC, FNPFamily Nurse Practitioner1598767097
- Esther Arguello Perez, M.DInfectious Disease Physician1598039091
- Rosa Atkinson, M.D.Specialist1861573966
Verify Maria D. Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 336990Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family nurse practitioner in 2024
14 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
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.
Maria D. Diaz among 14,805 family nurse practitioner records in New York
Maria D. Diaz, NP is one of 14,805 family nurse practitioner records with a practice address in New York. 68% 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 9% of them.
- NPI issued2007 · 9% of these records are older, 87% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 49% of these records are
- Record last updated2018 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
141 family nurse practitioner records list a practice address in Middletown
They are 141 of the 2,682 NPPES records with a practice address in Middletown, and 14,805 family nurse practitioner records in New York.
All 14,805 in New York → Every provider in Middletown → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Athalie Anjou, RNMiddletown, NY 109401316249634
- Michelle Appelbaum, DNSC, FNPMiddletown, NY 109401598767097
- Katherine Bergamo, FNPMiddletown, NY 109401578833844
- Uchenna Egwuonwu, NPMiddletown, NY 109401932477452
- Barbara Hearle, APNMiddletown, NY 109401417037722
- Cassandra Mc KoyMiddletown, NY 109401760672950
- Maria Noa, FNPMiddletown, NY 109401427380138
- Lucy Palomino, DNP, FNP-CMiddletown, NY 109401871611319
Common questions
What is Maria D. Diaz, NP's NPI number?
Maria D. Diaz, NP's National Provider Identifier (NPI) is 1457532723, issued on Nov 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Maria D. Diaz, NP located?
The NPPES record lists a practice address at 111 Maltese Dr, Middletown, NY, 10940. Phone: (845) 342-4774. Providers update this record themselves, so call before visiting.
How can I verify Maria D. Diaz, NP's license?
NPPES lists New York license number 336990, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Maria D. Diaz, NP prescribe under Medicare Part D?
In 2024, Maria D. Diaz, NP had 14 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
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.