Jack M. Greenwood, MD
Neurology with Special Qualifications in Child Neurology Physician · Port Jefferson, NY
Jack M. Greenwood, MD is a neurology with special qualifications in child neurology physician with a practice address in Port Jefferson, New York, and NPI 1851396865, issued on Jun 16, 2005. Check the license (New York 124686, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jack M. Greenwood
- Credential
- MD
- Primary taxonomy
- Neurology with Special Qualifications in Child Neurology Physician 2084N0402X
- License number
- 124686 NY
Self-reported in NPPES; status is on the state search - Practice location
- 120 N Country RD, Port Jefferson, NY 11777
- Phone
- (631) 474-0444
- Enumerated
- Jun 16, 2005
- Record last updated
- Apr 2, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (631) 928-8605
- Medicaid ID
- 00664526 NY
- Medicare enrollment
- Enrolled (PECOS I20040107000130); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1974
- Entity
- Type 1 · individual
8 nearest neurology with special qualifications in child neurology physician records → All 215 in New York → Look up another NPI →
Also registered at 120 N Country RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer AnconaPhysician Assistant1134219124
- Paul Lusman, M.D.Allergy & Immunology Physician1962400176
- Joan Nathan, A.N.P.Adult Health Nurse Practitioner1053438952
- Deanna Spence, NURSE PRACTITIONERFamily Nurse Practitioner1659858744
Verify Jack M. Greenwood 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 124686Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average neurology with special qualifications in child neurology physician in 2024
311 Medicare Part D claims for 62 beneficiaries, against an average of 278 among the 900 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Donepezil Hcl54 claims
- Gabapentin40 claims
- Topiramate30 claims
- Lacosamide24 claims
- Levetiracetam14 claims
- Avonex Pen (4 Pack)13 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.
Industry payments in 2024: $29.69
1 payment: food and beverage; the largest payer was Abbvie Inc. The 1,195 providers of this specialty with any payment received $5,568.05 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.
Jack M. Greenwood among 215 neurology with special qualifications in child neurology physician records in New York
Jack M. Greenwood, MD is one of 215 neurology with special qualifications in child neurology physician records with a practice address in New York. 72% 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, 96% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1974 · median 2007 among the 96 with a school on file
- Record last updated2008 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0402X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology with Special Qualifications in Child Neurology Physician providers in New York
There are 215 neurology with special qualifications in child neurology physician records in New York.
All 215 in New York → Every provider in Port Jefferson → Neurology with Special Qualifications in Child Neurology Physician nationwide →
The 8 neurology with special qualifications in child neurology physician records with the nearest ZIP codes
- Pina Patel- Pulipati, MDPatchogue, NY 117721760653117
- Shantel Apeseche, MDStony Brook, NY 117941366071482
- Tejwant Bindra, D.O.Stony Brook, NY 117941982862843
- Kellie Christenson, M.D.Stony Brook, NY 117941194068106
- Susan Manganaro, M.D.Stony Brook, NY 117941720217672
- Robert Trepel, M.D.Stony Brook, NY 117941841230042
- Mitchell Creed, MDIslip, NY 117511659831121
- Greg Rosenn, MDPlainview, NY 118031598707697
Common questions
What is Jack M. Greenwood, MD's NPI number?
Jack M. Greenwood, MD's National Provider Identifier (NPI) is 1851396865, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jack M. Greenwood, MD located?
The NPPES record lists a practice address at 120 N Country RD, Port Jefferson, NY, 11777. Phone: (631) 474-0444. Providers update this record themselves, so call before visiting.
How can I verify Jack M. Greenwood, MD's license?
NPPES lists New York license number 124686, 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 Jack M. Greenwood, MD prescribe under Medicare Part D?
In 2024, Jack M. Greenwood, MD had 311 Medicare Part D claims for 62 beneficiaries; the average among neurology with special qualifications in child neurology physician prescribers was 278. 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.