William Blakeley Kerr, MD
General Practice Physician · Wainscott, NY
William Blakeley Kerr, MD is a general practice physician with a practice address in Wainscott, New York, and NPI 1871681353, issued on Oct 10, 2006. Check the license (New York 183802, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- William Blakeley Kerr
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 183802 NY
Self-reported in NPPES; status is on the state search - Practice location
- 83 Wainscott Northwest RD, Wainscott, NY 11975
- Phone
- (631) 537-1892
- Enumerated
- Oct 10, 2006
- Record last updated
- May 10, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (631) 537-3053
- Medicaid ID
- 02491385 NY
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 681 in New York → Look up another NPI →
Verify William Blakeley Kerr 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 183802Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% more Medicare Part D claims than the average general practice physician in 2024
4,118 Medicare Part D claims for 480 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. 81 claims were for opioids.
Most prescribed
- Atorvastatin Calcium249 claims
- Levothyroxine Sodium202 claims
- Amlodipine Besylate151 claims
- Doxycycline Hyclate135 claims
- Zolpidem Tartrate117 claims
- Lisinopril111 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 MIPS final score for 2023 (Medicare payment program): 98.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
William Blakeley Kerr among 681 general practice physician records in New York
William Blakeley Kerr, MD is one of 681 general practice physician records with a practice address in New York. 49% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 75% newer
- In a Medicare fileYes · 49% of these records are
- In the CMS Doctors and Clinicians fileNo · 21% of these records are
- Record last updated2016 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 general practice physician record lists a practice address in Wainscott
They are 1 of the 24 NPPES records with a practice address in Wainscott, and 681 general practice physician records in New York.
All 681 in New York → Every provider in Wainscott → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Robert Fear, M.D.Southampton, NY 119691992969430
- Ahmed Erakat, D.O.Southampton, NY 119681285929935
- Mark Kot, M.D.Southampton, NY 119681295772077
- Albert Noniyev, D.OSouthampton, NY 119681831450535
- Peter Kelt, MDShelter Island, NY 119641124092408
- Larry Malerba, D.O.Altamont, NY 120091952769630
- John Borzilleri, MDCutchogue, NY 119351437424132
- David Goldman, M.D.Center Moriches, NY 119341952377707
Common questions
What is William Blakeley Kerr, MD's NPI number?
William Blakeley Kerr, MD's National Provider Identifier (NPI) is 1871681353, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Blakeley Kerr, MD located?
The NPPES record lists a practice address at 83 Wainscott Northwest RD, Wainscott, NY, 11975. Phone: (631) 537-1892. Providers update this record themselves, so call before visiting.
How can I verify William Blakeley Kerr, MD's license?
NPPES lists New York license number 183802, 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 Blakeley Kerr, MD prescribe under Medicare Part D?
In 2024, William Blakeley Kerr, MD had 4,118 Medicare Part D claims for 480 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.
What is William Blakeley Kerr, MD's MIPS final score?
The 2023 MIPS final score is 98.5 of 100. 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.