Diego A Diaz Md PC in New York, NY
This organization bills under NPI 1689122913, an organization record issued on Sep 15, 2016 with the primary taxonomy Pulmonary Disease Physician. Each clinician who works there has their own NPI and license.
Organization recordNPPES, Aug 2026
1689122913
- Legal name
- Diego A Diaz Md PC
- Entity
- Type 2 · organization
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- Practice location
- 1041 3RD AVE, New York, NY 10065
- Phone
- 212-583-2956
- Enumerated
- Sep 15, 2016
- Record updated
- Sep 15, 2016
- Authorized official
- Owner (title as filed)
2 clinicians CMS lists with Diego A Diaz Md in New York
- Diego Diaz, MDPulmonary Disease Physician1942270467
- Klaus-Dieter Lessnau, MDSleep Medicine (Internal Medicine) Physician1083684708
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the New York secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
Common questions
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.