Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Klaus-Dieter K Lessnau, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1083684708

Dr. Klaus-Dieter K Lessnau, MD is a Pulmonary Disease in New York, New York. Qualified in 1985, 41 years ago. Practices with Diego a Diaz MD PC, a 2-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
41
Licensed in
NY
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

332 E 14th St
New York, NY 10003-4243
Phone: (212) 481-3333
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 110 E 59th St, New York, NY 10022-1304 — (212) 583-2969

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X · Licence 137901 (NY)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 206484 (NY)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 206484 (NY)

Record details

NPI number1083684708
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 25, 2006
Last updated in NPPESMarch 7, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE, SLEEP MEDICINE
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Group practice Diego A Diaz Md Pc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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