Klaus-Dieter K. Lessnau, MD
Sleep Medicine (Internal Medicine) Physician · New York, NY
Klaus-Dieter K. Lessnau, MD is a sleep medicine (internal medicine) physician with a practice address in New York, New York, and NPI 1083684708, issued on Jan 25, 2006. Check the license (New York 137901, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Klaus-Dieter K. Lessnau
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License numbers
- 137901 NY
206484 NY
Self-reported in NPPES; status is on the state search - Practice location
- 332 E 14TH St, New York, NY 10003
- Phone
- (212) 481-3333
- Enumerated
- Jan 25, 2006
- Record last updated
- Mar 7, 2023
- Medicaid ID
- 01872917 NY
- Medicare enrollment
- Enrolled (PECOS I20040301000002); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 57 in New York → Look up another NPI →
Also registered at 332 E 14TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Klaus-Dieter K. Lessnau 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 137901Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
707 Medicare Part D claims for 142 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D.
Most prescribed
- Trelegy Ellipta121 claims
- Albuterol Sulfate Hfa96 claims
- Doxepin Hcl53 claims
- Breztri Aerosphere40 claims
- Amlodipine Besylate37 claims
- Losartan Potassium33 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.
Industry payments in 2024: $3,227.97
119 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 664 providers of this specialty with any payment received $3,724.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- 14 Street Medical PCNew York, NY
- Diego A Diaz MD PCNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Klaus-Dieter K. Lessnau among 57 sleep medicine (internal medicine) physician records in New York
Klaus-Dieter K. Lessnau, MD is one of 57 sleep medicine (internal medicine) physician records with a practice address in New York. 91% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 58% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1985 · median 2002 among the 42 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in New York
There are 57 sleep medicine (internal medicine) physician records in New York.
All 57 in New York → Every provider in New York → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Boris Gilyadov, M.D.New York, NY 100031104212463
- Vincent Grbach, MDNew York, NY 100031427048792
- Omar Burschtin, M.D.New York, NY 100101821082058
- Andrew Varga, MD/PHDNew York, NY 100101639316623
- Sean Michael Duenas, M.D.New York, NY 100161962936013
- Kammi Grayson, DONew York, NY 100161376919589
- Elizabeth Sanchez, MDNew York, NY 100161902366347
- Ridhwan Baba, MDNew York, NY 100191225318397
Common questions
What is Klaus-Dieter K. Lessnau, MD's NPI number?
Klaus-Dieter K. Lessnau, MD's National Provider Identifier (NPI) is 1083684708, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Klaus-Dieter K. Lessnau, MD located?
The NPPES record lists a practice address at 332 E 14TH St, New York, NY, 10003. Phone: (212) 481-3333. Providers update this record themselves, so call before visiting.
How can I verify Klaus-Dieter K. Lessnau, MD's license?
NPPES lists New York license number 137901, 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 Klaus-Dieter K. Lessnau, MD prescribe under Medicare Part D?
In 2024, Klaus-Dieter K. Lessnau, MD had 707 Medicare Part D claims for 142 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.