David Thomas Klein, MD
Internal Medicine Physician · Lynbrook, NY
David Thomas Klein, MD is an internal medicine physician with a practice address in Lynbrook, New York, and NPI 1316932130, issued on Sep 19, 2005. Check the license (New York 129489, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- David Thomas Klein
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 129489 NY
Self-reported in NPPES; status is on the state search - Practice location
- 50 Hempstead Ave, Lynbrook, NY 11563
- Phone
- (516) 593-2133
- Enumerated
- Sep 19, 2005
- Record last updated
- Jan 10, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (516) 593-2224
- Medicaid ID
- 01082388 NY
- Entity
- Type 1 · individual
Also registered at 50 Hempstead Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edna Blumstein, PH.D.Clinical Psychologist1528078664
- Adrian Hardej, D.D.S.Dentist1790943058
- Adam Klein, DPMPodiatrist1679568893
- Raymond Lightstone, PSY.D.Psychologist1053456467
- Emil Salomon, ODOptometrist1891816831
Verify David Thomas Klein 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 129489Check 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 internal medicine physician in 2024
46 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
9 internal medicine physician records list a practice address in Lynbrook
They are 9 of the 630 NPPES records with a practice address in Lynbrook, and 12,067 internal medicine physician records in New York.
All 9 in Lynbrook → All 12,067 in New York → Every provider in Lynbrook →
Other internal medicine physician records in New York
- Deborah Aanonsen, D.O.Staten Island, NY1952395717
- Nivedita Aanur, M.D.New York, NY1982833471
- Jay Aaron, MDGreat Neck, NY1245332956
- Ahmad AbadiPoughkeepsie, NY1780258517
- Jamsheed Abadi, MDBrooklyn, NY1477537496
- Antonieta Abarientos, MDNew Rochelle, NY1649285123
- Zurab Abayev, M.D.Brooklyn, NY1841283058
- Ehab Abaza, MDNew York, NY1114507555
- Vaidarshi Abbagoni, MDNew York, NY1871237495
- Muhammad AbbasRichmond Hill, NY1053996587
Common questions
What is David Thomas Klein, MD's NPI number?
David Thomas Klein, MD's National Provider Identifier (NPI) is 1316932130, issued on Sep 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David Thomas Klein, MD located?
The NPPES record lists a practice address at 50 Hempstead Ave, Lynbrook, NY, 11563. Phone: (516) 593-2133. Providers update this record themselves, so call before visiting.
How can I verify David Thomas Klein, MD's license?
NPPES lists New York license number 129489, 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 David Thomas Klein, MD prescribe under Medicare Part D?
In 2024, David Thomas Klein, MD had 46 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.