William B. Dieck, MD
Ophthalmology Physician · Mount Kisco, NY
William B. Dieck, MD is an ophthalmology physician with a practice address in Mount Kisco, New York, and NPI 1316051360, issued on Aug 18, 2006. Check the license (New York 160917, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- William B. Dieck
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 160917 NY
Self-reported in NPPES; status is on the state search - Practice location
- 185 Kisco Ave Ste 500, Mount Kisco, NY 10549
- Phone
- (914) 666-4939
- Enumerated
- Aug 18, 2006
- Record last updated
- Nov 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (914) 242-7209
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,822 in New York → Look up another NPI →
Verify William B. Dieck 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 160917Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% more Medicare Part D claims than the average ophthalmology physician in 2024
1,755 Medicare Part D claims for 462 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Latanoprost642 claims
- Timolol Maleate174 claims
- Neomycin-Polymyxin-Dexameth160 claims
- Lumigan88 claims
- Azithromycin66 claims
- Simbrinza66 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 MIPS final score for 2023 (Medicare payment program): 91.6 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).
William B. Dieck among 1,822 ophthalmology physician records in New York
William B. Dieck, MD is one of 1,822 ophthalmology physician records with a practice address in New York. 79% 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 16% of them.
- NPI issued2006 · 16% of these records are older, 34% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2016 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in New York
There are 1,822 ophthalmology physician records in New York.
All 1,822 in New York → Every provider in Mount Kisco → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Michael Cohen, MDMount Kisco, NY 105491205889649
- Eric Fitz, MDMount Kisco, NY 105491760492631
- Nan Hayworth, MDMount Kisco, NY 105491144885070
- Michele McLeod, MDMount Kisco, NY 105491942255096
- Richard Most, MDMount Kisco, NY 105491083780928
- Daniel Shapiro, MDMount Kisco, NY 105491043266935
- Mitchell Stein, M.D.Mount Kisco, NY 105491699796185
- Gaurang Trivedi, M.D.Mount Kisco, NY 105491922035229
Common questions
What is William B. Dieck, MD's NPI number?
William B. Dieck, MD's National Provider Identifier (NPI) is 1316051360, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William B. Dieck, MD located?
The NPPES record lists a practice address at 185 Kisco Ave Ste 500, Mount Kisco, NY, 10549. Phone: (914) 666-4939. Providers update this record themselves, so call before visiting.
How can I verify William B. Dieck, MD's license?
NPPES lists New York license number 160917, 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 B. Dieck, MD prescribe under Medicare Part D?
In 2024, William B. Dieck, MD had 1,755 Medicare Part D claims for 462 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is William B. Dieck, MD's MIPS final score?
The 2023 MIPS final score is 91.6 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), 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.