Stanislaw Klek, M.D.
Endocrinology, Diabetes & Metabolism Physician · Mineola, NY
Stanislaw Klek, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Mineola, New York, and NPI 1497000145, issued on Jul 18, 2012. Check the license (New York 274623, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Stanislaw Klek
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 274623 NY
Self-reported in NPPES; status is on the state search - Practice location
- 101 Mineola Blvd, Mineola, NY 11501
- Phone
- (516) 663-3511
- Enumerated
- Jul 18, 2012
- Entity
- Type 1 · individual
Also registered at 101 Mineola Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Grace BernaudoEndocrinology, Diabetes & Metabolism Physician1750901229
- Haarika ChalasaniTrauma Surgery Physician1689390122
- Sarita George, NPPediatric Nurse Practitioner1811141526
- Nicole Regan, RDNNutritionist1780133876
- Gary Rothberger, MDEndocrinology, Diabetes & Metabolism Physician1952665242
- Paul Saenger, MDPediatric Endocrinology Physician1275695298
Verify Stanislaw Klek 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 274623Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
7% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
2,546 Medicare Part D claims for 264 beneficiaries, against an average of 2,739 among the 6,176 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Mounjaro228 claims
- Metformin Hcl159 claims
- Jardiance144 claims
- Nano 2nd Gen Pen Needle111 claims
- Levothyroxine Sodium104 claims
- Novolog Flexpen102 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.
The practice group's Medicare quality score for 2023: 84.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Endocrinology, Diabetes & Metabolism Physician providers in New York
There are 813 endocrinology, diabetes & metabolism physician records in New York.
Other endocrinology, diabetes & metabolism physician records in New York
- Zinoviy Abelev, MDLong Island City, NY1891941613
- Jill Abelseth, M.D.Albany, NY1720080039
- Sherley Abraham, M.D.New York, NY1871739441
- Connor Abramowicz, DOPort Jefferson, NY1508485913
- Jennifer Abrams, DOBrooklyn, NY1679101364
- Naim Abrar, M.D.Riverhead, NY1790702355
- Cesar Abuchaibe, MDNew York, NY1316250582
- Domenico Accili, M.D.New York, NY1003938796
- Robert Aden, MDBrooklyn, NY1457312829
- Deena Adimoolam, MDNew York, NY1619110228
Common questions
What is Stanislaw Klek, M.D.'s NPI number?
Stanislaw Klek, M.D.'s National Provider Identifier (NPI) is 1497000145, issued on Jul 18, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Stanislaw Klek, M.D. located?
The NPPES record lists a practice address at 101 Mineola Blvd, Mineola, NY, 11501. Phone: (516) 663-3511. Providers update this record themselves, so call before visiting.
How can I verify Stanislaw Klek, M.D.'s license?
NPPES lists New York license number 274623, 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 Stanislaw Klek, M.D. prescribe under Medicare Part D?
In 2024, Stanislaw Klek, M.D. had 2,546 Medicare Part D claims for 264 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,739. Part D covers Medicare prescriptions only.
What is Stanislaw Klek, M.D.'s Medicare quality score?
The 2023 MIPS final score is 84.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.