Sanford Alan Greenhouse, M.D.
Internal Medicine Physician · Gales Ferry, CT
Sanford Alan Greenhouse, M.D. is an internal medicine physician with a practice address in Gales Ferry, Connecticut, and NPI 1669451894, issued on Jan 16, 2006. Check the license (Connecticut 020530, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Sanford Alan Greenhouse
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 020530 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1527 Route 12, Gales Ferry, CT 06335
- Phone
- (860) 464-7253
- Enumerated
- Jan 16, 2006
- Record last updated
- Nov 30, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (860) 464-7404
- Medicaid ID
- 001205301 CT
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 1527 Route 12
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Ancona, M.D.Pediatrics Physician1548359060
- Judy Chou, DDSPediatric Dentistry1447740261
- Karen Daly, D.D.S.General Practice Dentistry1417156373
- Steven Dias, DDSPediatric Dentistry1053772335
- Charles Esposito, M.D.Pediatrics Physician1548359078
- Steven Forstein, M.D.Pediatrics Physician1922197482
Verify Sanford Alan Greenhouse in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 020530Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
416 Medicare Part D claims for 120 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril42 claims
- Atorvastatin Calcium34 claims
- Amlodipine Besylate25 claims
- Losartan Potassium18 claims
- Rosuvastatin Calcium15 claims
- Escitalopram Oxalate14 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.
Sanford Alan Greenhouse among 2,623 internal medicine physician records in Connecticut
Sanford Alan Greenhouse, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 internal medicine physician records list a practice address in Gales Ferry
They are 2 of the 61 NPPES records with a practice address in Gales Ferry, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Gales Ferry → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- John Hennessey, M.D.Gales Ferry, CT 063351215916564
- Richard Albrecht, MDEast Lyme, CT 063331568445435
- James Rusnak, MD, PHDEast Lyme, CT 063331154658649
- Robert Welsch, MDEast Lyme, CT 063331720061906
- Diane Morgenthaler, MDLedyard, CT 063391578708111
- Anandhi Baleswaren, MDGroton, CT 063401346246444
- Rosalinda Gaona, MDGroton, CT 063401508879685
- Edward McDermott, M.D.Groton, CT 063401356324008
Common questions
What is Sanford Alan Greenhouse, M.D.'s NPI number?
Sanford Alan Greenhouse, M.D.'s National Provider Identifier (NPI) is 1669451894, issued on Jan 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sanford Alan Greenhouse, M.D. located?
The NPPES record lists a practice address at 1527 Route 12, Gales Ferry, CT, 06335. Phone: (860) 464-7253. Providers update this record themselves, so call before visiting.
How can I verify Sanford Alan Greenhouse, M.D.'s license?
NPPES lists Connecticut license number 020530, 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 Sanford Alan Greenhouse, M.D. prescribe under Medicare Part D?
In 2024, Sanford Alan Greenhouse, M.D. had 416 Medicare Part D claims for 120 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.