Steven A. Hemmerdinger, M.D.
Sleep Medicine (Otolaryngology) Physician · Ardsley, NY
Steven A. Hemmerdinger, M.D. is a sleep medicine (otolaryngology) physician with a practice address in Ardsley, New York, and NPI 1174749733, issued on Apr 18, 2007. Check the license (New York 230557, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Steven A. Hemmerdinger
- Credential
- M.D.
- Primary taxonomy
- Sleep Medicine (Otolaryngology) Physician 207YS0012X
- License number
- 230557 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1055 Saw Mill River RD, Ardsley, NY 10502
- Phone
- (914) 693-7636
- Enumerated
- Apr 18, 2007
- Record last updated
- Jul 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070821000278); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2002
- Entity
- Type 1 · individual
7 nearest sleep medicine (otolaryngology) physician records → All 8 in New York → Look up another NPI →
Also registered at 1055 Saw Mill River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Craig Berzofsky, MDOtolaryngology Physician1184850489
- Virginia Chen, MDDermatology Physician1811085319
- Pam Greenspan, AU.D.Audiologist1275663858
- Ameet Kamat, MDOtolaryngology Physician1891953469
- Alexandra Kaplan Corwin, MS, RD, CDNRegistered Dietitian1326384504
- Kathy Kenvin, MSAudiologist1386900280
Verify Steven A. Hemmerdinger 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 230557Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% more Medicare Part D claims than the average sleep medicine (otolaryngology) physician in 2024
330 Medicare Part D claims for 134 beneficiaries, against an average of 290 among the 46 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Fluticasone Propionate52 claims
- Ipratropium Bromide50 claims
- Azelastine Hcl31 claims
- Levocetirizine Dihydrochloride28 claims
- Fluocinolone Acetonide Oil15 claims
- Glycopyrrolate13 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: $278.33
5 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Sales Inc. The 44 providers of this specialty with any payment received $2,106.38 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 one group practice
- Westchester Medical Center Advanced Physician Services PCPoughkeepsie, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sleep Medicine (Otolaryngology) Physician providers in New York
There are 8 sleep medicine (otolaryngology) physician records in New York.
All 8 in New York → Every provider in Ardsley → Sleep Medicine (Otolaryngology) Physician nationwide →
The 7 sleep medicine (otolaryngology) physician records with the nearest ZIP codes
- Ofer Jacobowitz, M. D.,PHDNew York, NY 100171285617381
- Courtney Chou, MDNew York, NY 100031982047619
- Nikhita Jain, MDBrooklyn, NY 112011720570476
- Melissa Mortensen-Welch, M.D.East Setauket, NY 117331467675181
- Lee Shangold, M.D.Port Jefferson Station, NY 117761902887730
- Richard Hamburg, MDSmithtown, NY 117871548364128
- James Chmiel, MDE Amherst, NY 140511508810581
Common questions
What is Steven A. Hemmerdinger, M.D.'s NPI number?
Steven A. Hemmerdinger, M.D.'s National Provider Identifier (NPI) is 1174749733, issued on Apr 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Steven A. Hemmerdinger, M.D. located?
The NPPES record lists a practice address at 1055 Saw Mill River RD, Ardsley, NY, 10502. Phone: (914) 693-7636. Providers update this record themselves, so call before visiting.
How can I verify Steven A. Hemmerdinger, M.D.'s license?
NPPES lists New York license number 230557, 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 Steven A. Hemmerdinger, M.D. prescribe under Medicare Part D?
In 2024, Steven A. Hemmerdinger, M.D. had 330 Medicare Part D claims for 134 beneficiaries; the average among sleep medicine (otolaryngology) physician prescribers was 290. 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.