William Unis, MD
Orthopaedic Surgery Physician · Bronxville, NY
William Unis, MD is an orthopaedic surgery physician with a practice address in Bronxville, New York, and NPI 1225198872, issued on Dec 12, 2006. Check the license (New York 104483, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- William Unis
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 104483 NY
Self-reported in NPPES; status is on the state search - Practice location
- 77 Pondfield RD, Bronxville, NY 10708
- Phone
- (914) 793-0999
- Enumerated
- Dec 12, 2006
- Record last updated
- Apr 14, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (914) 793-7431
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 1,339 in New York → Look up another NPI →
Also registered at 77 Pondfield RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shija Joseph, FNP-BCFamily Nurse Practitioner1508205055
- Stewart Kamen, DPMFoot Surgery Podiatrist1043239452
- Phyllis Kwok, MDInternal Medicine Physician1629068671
Verify William Unis 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 104483Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
21 Medicare Part D claims, against an average of 346 among the 16,516 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.
William Unis among 1,339 orthopaedic surgery physician records in New York
William Unis, MD is one of 1,339 orthopaedic surgery physician records with a practice address in New York. 76% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 44% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2010 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in New York
There are 1,339 orthopaedic surgery physician records in New York.
All 1,339 in New York → Every provider in Bronxville → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Michael Elia, M.DBronxville, NY 107081225074255
- Michael Knudsen, MDBronxville, NY 107081093058240
- Peter Rizzo, M.D.Bronxville, NY 107081588756415
- Rajesh Sharma, PABronxville, NY 107081194860684
- Stanley Liebowitz, MDEastchester, NY 107091831271527
- David Trofa, MDEastchester, NY 107091003159328
- Michael Cushner, MDYonkers, NY 107101629045844
- Kenneth Falvo, MDHastings On Hudson, NY 107061437497351
Common questions
What is William Unis, MD's NPI number?
William Unis, MD's National Provider Identifier (NPI) is 1225198872, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Unis, MD located?
The NPPES record lists a practice address at 77 Pondfield RD, Bronxville, NY, 10708. Phone: (914) 793-0999. Providers update this record themselves, so call before visiting.
How can I verify William Unis, MD's license?
NPPES lists New York license number 104483, 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 William Unis, MD prescribe under Medicare Part D?
In 2024, William Unis, MD had 21 Medicare Part D claims; the average among orthopaedic surgery physician prescribers was 346. 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.