NPPES file of Aug 9, 2026

David Thomas Greco, M.D.

Neurology Physician · Danbury, CT

David Thomas Greco, M.D. is a neurology physician with a practice address in Danbury, Connecticut, and NPI 1740285204, issued on Jun 20, 2005. Check the license (Connecticut CT040535, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740285204
Name
David Thomas Greco
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
CT040535 CT
Self-reported in NPPES; status is on the state search
Practice location
69 Sand Pit RD, Danbury, CT 06810
Phone
(203) 748-2551
Enumerated
Jun 20, 2005
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(203) 790-6375
Medicare enrollment
Enrolled (PECOS I20090618000496); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1997
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 69 Sand Pit RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bruce Altman, M.D.Glaucoma Specialist (Ophthalmology) Physician1336147784
  2. Yehuda Assouline, M.D.Ophthalmology Physician1578514709
  3. Cynthia Bahr, PTPhysical Therapist1689653388
  4. Ashley BernoccoMedical Physician Assistant1598339285
  5. Robert Bonwetsch, MDNeurology Physician1801856687
  6. Hayley Brooks-Wallin, OTR/L, SIOccupational Therapist1033494844

Verify David Thomas Greco in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license CT040535
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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61% more Medicare Part D claims than the average neurology physician in 2024

2,206 Medicare Part D claims for 447 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. David Greco2,206
  2. Specialty average1,370

Most prescribed

  1. Donepezil Hcl407 claims
  2. Gabapentin173 claims
  3. Carbidopa-Levodopa125 claims
  4. Baclofen103 claims
  5. Levetiracetam87 claims
  6. Escitalopram Oxalate74 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

  1. Nuvance Health Medical Practice CT IncDanbury, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David Thomas Greco among 345 neurology physician records in Connecticut

David Thomas Greco, M.D. is one of 345 neurology physician records with a practice address in Connecticut. 83% 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, 89% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1997 · median 2009 among the 216 with a school on file
  • Record last updated2007 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Connecticut

There are 345 neurology physician records in Connecticut.

The 8 neurology physician records with the nearest ZIP codes

  1. Robert Bonwetsch, MDDanbury, CT 068101801856687
  2. Neil Culligan, M.D.Danbury, CT 068101649275611
  3. Charles Guardia, M.D.Danbury, CT 068101841464641
  4. Behzad Habibi Khameneh, M.D.Danbury, CT 068101669447538
  5. Sardion Jijelava, MDDanbury, CT 068101790282168
  6. Martin Kremenitzer, M.D.Danbury, CT 068101215997598
  7. Samuel Markind, M.D.Danbury, CT 068101427053404
  8. Jan Mashman, M.D.Danbury, CT 068101639174618

Common questions

What is David Thomas Greco, M.D.'s NPI number?

David Thomas Greco, M.D.'s National Provider Identifier (NPI) is 1740285204, issued on Jun 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is David Thomas Greco, M.D. located?

The NPPES record lists a practice address at 69 Sand Pit RD, Danbury, CT, 06810. Phone: (203) 748-2551. Providers update this record themselves, so call before visiting.

How can I verify David Thomas Greco, M.D.'s license?

NPPES lists Connecticut license number CT040535, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David Thomas Greco, M.D. prescribe under Medicare Part D?

In 2024, David Thomas Greco, M.D. had 2,206 Medicare Part D claims for 447 beneficiaries; the average among neurology physician prescribers was 1,370. 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.