Laurence Lee Greenhill, MD - Medicare Psychiatry & Neurology in Mamaroneck, NY

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Laurence Lee Greenhill, MD is a medicare enrolled "Psychiatry & Neurology - Child & Adolescent Psychiatry" physician in Mamaroneck, New York. His current practice location is 9 Country Rd, Mamaroneck, New York. You can reach out to his office (for appointments etc.) via phone at (914) 381-2436.

Laurence Lee Greenhill is licensed to practice in New York (license number 102893) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1992823546.

Contact Information

Laurence Lee Greenhill, MD
9 Country Rd,
Mamaroneck, NY 10543-1105
(914) 381-2436
(914) 381-2436

Map and Direction




Physician's Profile

Full NameLaurence Lee Greenhill
GenderMale
SpecialityPsychiatry & Neurology - Child & Adolescent Psychiatry
Location9 Country Rd, Mamaroneck, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1992823546
  • Provider Enumeration Date: 03/26/2007
  • Last Update Date: 02/11/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3779844048
  • Enrollment ID: I20180301000382

Medical Identifiers

Medical identifiers for Laurence Lee Greenhill such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992823546NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0804XPsychiatry & Neurology - Child & Adolescent Psychiatry 102893 (New York)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Laurence Lee Greenhill allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513
Entity NameUcsf Psychiatry
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427105279
PECOS PAC ID: 4981680832
Enrollment ID: O20040629001513

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Laurence Lee Greenhill is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Laurence Lee Greenhill, MD
9 Country Rd,
Mamaroneck, NY 10543-1105

Ph: (914) 381-2436		Laurence Lee Greenhill, MD
9 Country Rd,
Mamaroneck, NY 10543-1105

Ph: (914) 381-2436

Reviews and Comments


Psychiatry & Neurology Doctors in Mamaroneck, NY

Dr. Jack Charles Schoenholtz, M.D.
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Practice Location: 360 Orienta Ave, Mamaroneck, NY 10543
Phone: 914-698-4332    Fax: 914-698-0184
Dr. Mark Tobak, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 1600 Harrison Ave, Suite 105a, Mamaroneck, NY 10543
Phone: 914-698-3018    Fax: 914-698-0685
Dr. Deborah Nancy Plachta, MD
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 490 Bleeker Ave Apt 3m, Mamaroneck, NY 10543
Phone: 212-879-5621    Fax: 914-222-8838
Mary Mclarnon, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 752 Cove Rd, Mamaroneck, NY 10543
Phone: 914-777-7348    Fax: 914-777-7348
Krystyna De Jacq, NP
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 709 Palmer Ct Apt 2e, Mamaroneck, NY 10543
Phone: 917-513-0273    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.