Mary Derrane, MD
Emergency Medicine Physician · New Milford, CT
Mary Derrane, MD is an emergency medicine physician with a practice address in New Milford, Connecticut, and NPI 1366637084, issued on Sep 6, 2007. Check the license (Connecticut 045768, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mary Derrane
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 045768 CT
243200 NY
Self-reported in NPPES; status is on the state search - Practice location
- 21 Elm Street, New Milford, CT 06776
- Phone
- (860) 350-7222
- Enumerated
- Sep 6, 2007
- Record last updated
- Aug 8, 2025
- Entity
- Type 1 · individual
Also registered at 21 Elm Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michele Macdonnell, R.D.Registered Dietitian1003056771
- Heather Milligan, R.D.Registered Dietitian1487894150
Verify Mary Derrane in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 045768Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average emergency medicine physician in 2024
89 Medicare Part D claims for 71 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Tramadol Hcl12 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.
4 emergency medicine physician records list a practice address in New Milford
They are 4 of the 332 NPPES records with a practice address in New Milford, and 846 emergency medicine physician records in Connecticut.
All 4 in New Milford → All 846 in Connecticut → Every provider in New Milford →
Other emergency medicine physician records in Connecticut
- Carol Abbatiello, D.O.Hartford, CT1275579732
- Lincoln Abbott, MDHartford, CT1518965433
- Wayne Abrahams, MDWaterbury, CT1508886227
- Theresa Adams, M.D.New London, CT1457678138
- Irini Agaraj, MDNew Haven, CT1184208431
- Doreen Agboh, MDNew Haven, CT1275153868
- Ronald Agnes, M.D.Simsbury, CT1548399728
- Julius Patrick Aguas, DOHartford, CT1245736321
- Saeed Ahghari, MDEast Hartford, CT1427140862
- Teresa Allen, M.D.Putnam, CT1720047921
Common questions
What is Mary Derrane, MD's NPI number?
Mary Derrane, MD's National Provider Identifier (NPI) is 1366637084, issued on Sep 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Derrane, MD located?
The NPPES record lists a practice address at 21 Elm Street, New Milford, CT, 06776. Phone: (860) 350-7222. Providers update this record themselves, so call before visiting.
How can I verify Mary Derrane, MD's license?
NPPES lists Connecticut license number 045768, 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 Mary Derrane, MD prescribe under Medicare Part D?
In 2024, Mary Derrane, MD had 89 Medicare Part D claims for 71 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.