Louis R. Heisler, MD
Internal Medicine Physician · Lake Success, NY
Louis R. Heisler, MD is an internal medicine physician with a practice address in Lake Success, New York, and NPI 1659368314, issued on Sep 28, 2005. Check the license (New York GO120352, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Louis R. Heisler
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- GO120352 NY
Self-reported in NPPES; status is on the state search - Practice location
- 910 Lakeville RD, Lake Success, NY 11040
- Phone
- (516) 488-5050
- Enumerated
- Sep 28, 2005
- Record last updated
- Dec 18, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (516) 326-6252
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Verify Louis R. Heisler 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 GO120352Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
49 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of 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.
Louis R. Heisler among 12,067 internal medicine physician records in New York
Louis R. Heisler, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2009 · 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).
12 internal medicine physician records list a practice address in Lake Success
They are 12 of the 193 NPPES records with a practice address in Lake Success, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Lake Success → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kul Anand, M.D.New Hyde Park, NY 110401669459673
- Jocelyn Cervantes, M.D.New Hyde Park, NY 110401700832250
- Inderpal Chhabra, M.D.New Hyde Park, NY 110401497754881
- Sorina Dogaru-Lungu, M.D.New Hyde Park, NY 110401710987565
- Frank Evanov, MDNew Hyde Park, NY 110401750362984
- Ronald Kanner, MDNew Hyde Park, NY 110401346332012
- Wilbert Maniego, MDNew Hyde Park, NY 110401356392427
- Thomas Mathew, MDNew Hyde Park, NY 110401245282136
Common questions
What is Louis R. Heisler, MD's NPI number?
Louis R. Heisler, MD's National Provider Identifier (NPI) is 1659368314, issued on Sep 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Louis R. Heisler, MD located?
The NPPES record lists a practice address at 910 Lakeville RD, Lake Success, NY, 11040. Phone: (516) 488-5050. Providers update this record themselves, so call before visiting.
How can I verify Louis R. Heisler, MD's license?
NPPES lists New York license number GO120352, 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 Louis R. Heisler, MD prescribe under Medicare Part D?
In 2024, Louis R. Heisler, MD had 49 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.