Leonard A. Haas, MD
Pediatric Gastroenterology Physician · New Hyde Park, NY
Leonard A. Haas, MD is a pediatric gastroenterology physician with a practice address in New Hyde Park, New York, and NPI 1073019584, issued on Apr 3, 2018. Check the license (New York 330110, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Leonard A. Haas
- Credential
- MD
- Primary taxonomy
- Pediatric Gastroenterology Physician 2080P0206X
- License number
- 330110 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2800 Marcus Ave Ste 201, New Hyde Park, NY 11042
- Phone
- (516) 622-6076
- Enumerated
- Apr 3, 2018
- Record last updated
- Mar 1, 2026
- Fax
- (470) 275-0726
- Entity
- Type 1 · individual
8 nearest pediatric gastroenterology physician records → All 182 in New York → Look up another NPI →
Also registered at 2800 Marcus Ave Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Francine Samuels, M.D.Pediatric Gastroenterology Physician1629144084
Verify Leonard A. Haas 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 330110Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $460.17
16 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 1,184 providers of this specialty with any payment received $2,585.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Leonard A. Haas among 182 pediatric gastroenterology physician records in New York
Leonard A. Haas, MD is one of 182 pediatric gastroenterology physician records with a practice address in New York. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 88% of them.
- NPI issued2018 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 24% of these records are
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0206X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Gastroenterology Physician providers in New York
There are 182 pediatric gastroenterology physician records in New York.
All 182 in New York → Every provider in New Hyde Park → Pediatric Gastroenterology Physician nationwide →
The 8 pediatric gastroenterology physician records with the nearest ZIP codes
- Kayla Darienzo, FNPNew Hyde Park, NY 110421780567974
- Erica Rabinovich, DONew Hyde Park, NY 110421679032437
- Benjamin Sahn, M.D.New Hyde Park, NY 110421235395872
- Francine Samuels, M.D.New Hyde Park, NY 110421629144084
- Shari Sheflin-Findling, DONew Hyde Park, NY 110421831323286
- Michelle Tobin, M.D.New Hyde Park, NY 110421396049847
- Cindy HallerNew Hyde Park, NY 110401568588309
- Jeremiah Levine, MDNew Hyde Park, NY 110401700957107
Common questions
What is Leonard A. Haas, MD's NPI number?
Leonard A. Haas, MD's National Provider Identifier (NPI) is 1073019584, issued on Apr 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Leonard A. Haas, MD located?
The NPPES record lists a practice address at 2800 Marcus Ave Ste 201, New Hyde Park, NY, 11042. Phone: (516) 622-6076. Providers update this record themselves, so call before visiting.
How can I verify Leonard A. Haas, MD's license?
NPPES lists New York license number 330110, 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.
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.