William Edward Clack, MD
Dermatology Physician · Elmira, NY
William Edward Clack, MD is a dermatology physician with a practice address in Elmira, New York, and NPI 1053490805, issued on Nov 3, 2006. Check the license (New York 1181211, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- William Edward Clack
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 1181211 NY
Self-reported in NPPES; status is on the state search - Practice location
- 200 Madison Ave Ste 2B, Elmira, NY 14901
- Phone
- (607) 732-1310
- Enumerated
- Nov 3, 2006
- Record last updated
- Nov 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (607) 733-0940
- Medicaid ID
- 00359366 NY
- Medicare enrollment
- Enrolled (PECOS I20120109000736); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 1968
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 1,211 in New York → Look up another NPI →
Also registered at 200 Madison Ave Ste 2B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khizran Agha, MDStudent in an Organized Health Care Education/Training Program1053107482
- Lewis Cabibi, DOFamily Medicine Physician1073968756
- Donald Foster, D.O.Family Medicine Physician1679960066
- Britnee Monticello, DOStudent in an Organized Health Care Education/Training Program1568105708
- Keith Williams, PMHNPPsychiatric/Mental Health Nurse Practitioner1649701533
Verify William Edward Clack 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 1181211Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average dermatology physician in 2024
300 Medicare Part D claims for 93 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.
Most prescribed
- Triamcinolone Acetonide67 claims
- Ketoconazole40 claims
- Finasteride31 claims
- Hydrocortisone17 claims
- Methotrexate17 claims
- Fluorouracil16 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): 81.3 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 affiliation
- Arnot Ogden Medical CenterElmira, NY · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
William Edward Clack among 1,211 dermatology physician records in New York
William Edward Clack, MD is one of 1,211 dermatology physician records with a practice address in New York. 87% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1968 · median 2004 among the 880 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in New York
There are 1,211 dermatology physician records in New York.
All 1,211 in New York → Every provider in Elmira → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Kimberly Silvers, MDElmira, NY 149011275508533
- Rachel Garner, M.D.Ithaca, NY 148501063684579
- Robert Horn, MDIthaca, NY 148501922083641
- Lodewijk Magre, M.D.Ithaca, NY 148501598097644
- Josephine McAllister, MDIthaca, NY 148501679609317
- Diana Stephens, MDIthaca, NY 148501154687945
- Catherine Thompson, PA-CIthaca, NY 148501275197964
- William Jaremko, M.D.Olean, NY 147601417941733
Common questions
What is William Edward Clack, MD's NPI number?
William Edward Clack, MD's National Provider Identifier (NPI) is 1053490805, issued on Nov 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Edward Clack, MD located?
The NPPES record lists a practice address at 200 Madison Ave Ste 2B, Elmira, NY, 14901. Phone: (607) 732-1310. Providers update this record themselves, so call before visiting.
How can I verify William Edward Clack, MD's license?
NPPES lists New York license number 1181211, 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 Edward Clack, MD prescribe under Medicare Part D?
In 2024, William Edward Clack, MD had 300 Medicare Part D claims for 93 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is William Edward Clack, MD's MIPS final score?
The 2023 MIPS final score is 81.3 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.