Dr. Mary B. Derrane, MD
- Medicare services, 2024
- 127
- Medicare patients, 2024
- 132
- Part D claims, 2024
- 89
- Affiliated sites
- 1
- Medical groups
- 5
- Practice address
- 21 Elm Street, New Milford, CT 06776
- Practice phone
- Call (860) 210-5555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwell New Milford Hospital Imaging
Mammography / Breast Imaging Center · New Milford, Connecticut
Find Dr. Derrane's professional email, personal email and mobile number
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Dr. Mary B. Derrane is an emergency medicine physician in New Milford, Connecticut
Dr. Derrane practices at Northwell New Milford Hospital Imaging in New Milford, Connecticut.
Dr. Derrane's NPI, 1366637084, was assigned on September 6, 2007. Dr. Derrane graduated from Loyola University of Chicago, Stritch School of Medicine in 2004. Dr. Derrane holds Connecticut license 045768.
- NPI
- 1366637084NPI Registry (opens in a new tab)
- NPI enumeration date
- September 6, 2007
- NPI status
- Active
- Practice phone
- (860) 210-5555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mary B. Derrane practices at Northwell New Milford Hospital Imaging in New Milford, Connecticut
Dr. Derrane's primary practice is Northwell New Milford Hospital Imaging, at 21 Elm Street, New Milford, CT 06776. The practice phone is (860) 210-5555.
- Northwell New Milford Hospital Imaging21 Elm Street, New Milford, CT 06776Phone(860) 210-5555
Source: Dmand AI Affiliation Data
Dr. Mary B. Derrane is affiliated with 1 site of care and 5 medical groups
Dr. Derrane's primary practice is Northwell New Milford Hospital Imaging in New Milford, Connecticut. The medical group on file is Danbury Hospital. Dmand AI also links Dr. Derrane to 4 more medical groups, each named with a free account. Dr. Derrane's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary B. Derrane's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Derrane practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwell New Milford Hospital Imaging | Available with a free account |
| +4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary B. Derrane is one of 683 emergency medicine physicians in Connecticut
Emergency medicine is Dr. Derrane's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Derrane's licenses on file in 2 states: Connecticut and New York.
Specialties and state licenses
- Emergency medicine, ConnecticutPrimary
- New York license
Emergency medicine physicians near Dr. Derrane
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mary B. Derrane billed Medicare for 127 services in 2024
CMS data shows 127 Medicare services from Dr. Derrane across 3 procedure codes in 2024, for 132 Medicare patients. Medicare paid $15,061 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Derrane's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2742024: 12754%
Dr. Derrane compared with the Connecticut median for emergency medicine physicians, 2024
- Dr. Derrane
- Connecticut median
- Medicare services
- 127vs 24348% below
- Medicare patients
- 132vs 25047% below
- Part D claims
- 12vs 4875% below
Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.
Dr. Derrane's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Derrane and other emergency medicine physicians in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary B. Derrane treated 132 Medicare patients in 2024, average age 79
CMS counts 132 Medicare patients who saw Dr. Derrane in 2024. The largest group is 75 to 84, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.73, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Derrane's median patient age at 20, with 100% women.
Dr. Derrane's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Derrane's Medicare patients by sex, 2024
- Women6952%
- Men6348%
Chronic conditions among Dr. Derrane's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease41%
- Anxiety36%
- Atrial fibrillation34%
- Mood disorders34%
- COPD33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Derrane's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 20
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mary B. Derrane wrote 89 Medicare Part D claims in 2024
In 2024, Dr. Derrane wrote 89 Medicare Part D claims for 71 patients. 93% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $22 in total drug cost. In 2023, CMS named 112 claims across 6 drugs.
Dr. Derrane's Part D claims by kind of drug, 2024
- Generic83 claims93%
- Brand-name and other6 claims7%
Dr. Derrane's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Derrane's Part D claims, 2024
- Opioids18%16 of 89 claims
- Antibiotics37%33 of 89 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1122024: 1289%
Drugs named by CMS: 1 in 2024, 6 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Mary B. Derrane graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Derrane graduated from Loyola University of Chicago, Stritch School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mary B. Derrane's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mary B. Derrane
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mary B. Derrane's NPI number?
Dr. Mary B. Derrane's NPI number is 1366637084. It was assigned on September 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary B. Derrane?
Dr. Mary B. Derrane is an emergency medicine physician in New Milford, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mary B. Derrane practice?
Dr. Derrane practices at 21 Elm Street, New Milford, CT 06776. Dr. Derrane's primary practice is Northwell New Milford Hospital Imaging in New Milford, Connecticut. Dmand AI also links Dr. Derrane to 4 medical groups.
What is Dr. Mary B. Derrane's office phone number?
The practice phone on file for Dr. Derrane is (860) 210-5555.
What is Dr. Mary B. Derrane's medical license number?
Dr. Derrane holds Connecticut license 045768, one of the licenses on file in 2 states.
Which states has Dr. Mary B. Derrane been licensed in?
Dmand AI has state licenses on file for Dr. Derrane in Connecticut and New York.
What medical group is Dr. Mary B. Derrane part of?
Dr. Derrane is linked to Danbury Hospital. Dmand AI links Dr. Derrane to 4 more medical groups.
Does Dr. Mary B. Derrane accept Medicare?
Yes. CMS data shows Dr. Derrane billed Medicare for 127 services in 2024.
How many Medicare patients does Dr. Mary B. Derrane see?
CMS counts 132 Medicare patients who saw Dr. Derrane in 2024, with an average age of 79.
What services does Dr. Mary B. Derrane bill to Medicare?
In 2024, Dr. Derrane's most billed Medicare services were emergency department visit (99284), critical care (99291) and emergency department visit (99285).
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Where did Dr. Mary B. Derrane go to medical school?
Dr. Derrane graduated from Loyola University of Chicago, Stritch School of Medicine in 2004.
What drugs does Dr. Mary B. Derrane prescribe most?
In 2024 Medicare Part D data, Dr. Derrane's most prescribed drugs by claims were Tramadol HCl.
How long has Dr. Mary B. Derrane been practicing?
Dr. Derrane graduated from medical school in 2004, 22 years ago.
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