Lloyd Simon, M.D.
Internal Medicine Physician · Southold, NY
Lloyd Simon, M.D. is an internal medicine physician with a practice address in Southold, New York, and NPI 1811921463, issued on Jul 10, 2006. Check the license (New York 153210, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Lloyd Simon
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 153210 NY
153210-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 44210 County Road 48, Southold, NY 11971
- Phone
- (631) 765-4150
- Enumerated
- Jul 10, 2006
- Record last updated
- Apr 6, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (631) 765-4688
- Medicaid ID
- 00757786 NY
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 44210 County Road 48
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sally Monahan, NURSE PRACTITIONERFamily Nurse Practitioner1811002868
- Yuliya Vinnitskaya, M.D.Internal Medicine Physician1053560813
Verify Lloyd Simon 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 153210Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
36 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
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).
Lloyd Simon among 12,067 internal medicine physician records in New York
Lloyd Simon, M.D. is one of 12,067 internal medicine 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 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2016 · 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 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 internal medicine physician records list a practice address in Southold
They are 3 of the 108 NPPES records with a practice address in Southold, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Southold → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jay Slotkin, MDSouthold, NY 119711780650226
- Yuliya Vinnitskaya, M.D.Southold, NY 119711053560813
- Eva Erens, M.D.Upton, NY 119731437510120
- Bahadur AliSouthampton, NY 119681033671649
- Usman Asif, MDSouthampton, NY 119681467192401
- David Capone, DOSouthampton, NY 119681629385174
- Perry Eisman, M.D.Southampton, NY 119681609008663
- Dmitriy Generalov, DOSouthampton, NY 119681871080911
Common questions
What is Lloyd Simon, M.D.'s NPI number?
Lloyd Simon, M.D.'s National Provider Identifier (NPI) is 1811921463, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lloyd Simon, M.D. located?
The NPPES record lists a practice address at 44210 County Road 48, Southold, NY, 11971. Phone: (631) 765-4150. Providers update this record themselves, so call before visiting.
How can I verify Lloyd Simon, M.D.'s license?
NPPES lists New York license number 153210, 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 Lloyd Simon, M.D. prescribe under Medicare Part D?
In 2024, Lloyd Simon, M.D. had 36 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lloyd Simon, M.D.'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.