Laurence Lee Greenhill, M.D.
Child & Adolescent Psychiatry Physician · Mamaroneck, NY
Laurence Lee Greenhill, M.D. is a child & adolescent psychiatry physician with a practice address in Mamaroneck, New York, and NPI 1992823546, issued on Mar 26, 2007. Check the license (New York 102893, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Laurence Lee Greenhill
- Credential
- M.D.
- Primary taxonomy
- Child & Adolescent Psychiatry Physician 2084P0804X
- License number
- 102893 NY
Self-reported in NPPES; status is on the state search - Practice location
- 9 Country RD, Mamaroneck, NY 10543
- Phone
- (914) 381-2436
- Enumerated
- Mar 26, 2007
- Record last updated
- Feb 11, 2022
- Fax
- (914) 381-2436
- Medicare enrollment
- Enrolled (PECOS I20180301000382); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1967
- Entity
- Type 1 · individual
8 nearest child & adolescent psychiatry physician records → All 827 in New York → Look up another NPI →
Verify Laurence Lee Greenhill 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 102893Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average child & adolescent psychiatry physician in 2024
601 Medicare Part D claims for 56 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Lorazepam65 claims
- Fluoxetine Hcl39 claims
- Alprazolam32 claims
- Escitalopram Oxalate31 claims
- Trazodone Hcl31 claims
- Clonazepam27 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.
Bills Medicare through one group practice
- Permanente Medical Group IncDaly City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Laurence Lee Greenhill among 827 child & adolescent psychiatry physician records in New York
Laurence Lee Greenhill, M.D. is one of 827 child & adolescent psychiatry physician records with a practice address in New York. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 25% of them.
- NPI issued2007 · 25% of these records are older, 47% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileYes · 26% of these records are
- Graduated1967 · median 2001 among the 213 with a school on file
- Record last updated2022 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Child & Adolescent Psychiatry Physician providers in New York
There are 827 child & adolescent psychiatry physician records in New York.
All 827 in New York → Every provider in Mamaroneck → Child & Adolescent Psychiatry Physician nationwide →
The 8 child & adolescent psychiatry physician records with the nearest ZIP codes
- Michael Behar, M.D.Larchmont, NY 105381356414619
- Robert Berlin, M.D.Larchmont, NY 105381386893527
- Robert Catenaccio, M.D.Larchmont, NY 105381063559821
- Lina Guertin, MDLarchmont, NY 105381376523522
- Suanne Mallenbaum, MD, PHDLarchmont, NY 105381295757177
- Robert Roy, M.D.Larchmont, NY 105381639231137
- Harriet Ackerman, M.D.Mount Kisco, NY 105491336330091
- Gayle Augenbaum, M.D.Mount Kisco, NY 105491144433301
Common questions
What is Laurence Lee Greenhill, M.D.'s NPI number?
Laurence Lee Greenhill, M.D.'s National Provider Identifier (NPI) is 1992823546, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Laurence Lee Greenhill, M.D. located?
The NPPES record lists a practice address at 9 Country RD, Mamaroneck, NY, 10543. Phone: (914) 381-2436. Providers update this record themselves, so call before visiting.
How can I verify Laurence Lee Greenhill, M.D.'s license?
NPPES lists New York license number 102893, 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 Laurence Lee Greenhill, M.D. prescribe under Medicare Part D?
In 2024, Laurence Lee Greenhill, M.D. had 601 Medicare Part D claims for 56 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. 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.