Marissa Crofut
- Medicare patients, 2024
- 33
- Part D claims, 2024
- 179
- Hospital affiliations
- 2
- Industry payments
- $561
- Medical groups
- 3
- Practice address
- 24 Hospital Ave, Danbury, CT 06810
- Practice phone
- Call (203) 739-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Marissa Crofut's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Marissa Crofut is a physician assistant in Danbury, Connecticut
Marissa Crofut practices at Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health.
Marissa Crofut's NPI, 1952959546, was assigned on August 28, 2019. Marissa Crofut holds Connecticut license 5026.
- NPI
- 1952959546NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012247299
- NPI enumeration date
- August 28, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 739-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa Crofut practices at Northwell Danbury Hospital in Danbury, Connecticut
Marissa Crofut's primary practice is Northwell Danbury Hospital, at 24 Hospital Ave, Danbury, CT 06810 in Fairfield County. The practice phone is (203) 739-7000.
- Northwell Danbury Hospital24 Hospital Ave, Danbury, CT 06810 · Fairfield CountyPhone(203) 739-7000
Source: Dmand AI Affiliation Data
Marissa Crofut is affiliated with 4 sites of care and 3 medical groups
Marissa Crofut's primary practice is Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health. Marissa Crofut is also affiliated with Norwalk Hospital. The medical group on file is Westchester Medical Center Advanced Physician Services. Dmand AI also links Marissa Crofut to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marissa Crofut's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa Crofut practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwell Danbury Hospital | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwell Health and 6.2K+ hospitals, with verified contacts in the same login.
Marissa Crofut is one of 1,682 physician assistants in Connecticut
Physician assistant is Marissa Crofut's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Marissa Crofut's licenses on file in 2 states: Connecticut and New York.
Specialties and state licenses
- Physician assistant, ConnecticutPrimary
- New York license
Physician assistants near Marissa Crofut
Counts of physician assistants 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
Marissa Crofut treated 33 Medicare patients in 2024, average age 73
CMS counts 33 Medicare patients who saw Marissa Crofut in 2024. The largest group is 75 to 84, with 14 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 2.52, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marissa Crofut's median patient age at 72, with 54% women.
Marissa Crofut's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marissa Crofut's Medicare patients by sex, 2024
- Women2061%
- Men1339%
Chronic conditions among Marissa Crofut's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis42%
- Chronic kidney disease39%
- Diabetes39%
- Ischemic heart disease39%
- Cancer33%
Share of Medicare patients with each condition. A patient can have several.
Marissa Crofut's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women54%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marissa Crofut wrote 179 Medicare Part D claims in 2024
In 2024, Marissa Crofut wrote 179 Medicare Part D claims for 78 patients. 80% of them were for generic drugs. CMS names the drug for 83 of them, across 4 drugs with 11 or more claims each, at $57,484 in total drug cost.
Marissa Crofut's Part D claims by kind of drug, 2024
- Generic143 claims80%
- Brand-name36 claims20%
Marissa Crofut'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 Marissa Crofut's Part D claims, 2024
- Opioids8%15 of 179 claims
- Antibiotics14%25 of 179 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Marissa Crofut takes part in Medicare
Marissa Crofut accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Marissa Crofut received $561 in industry payments in 2025
CMS Open Payments shows 23 general payments to Marissa Crofut from 16 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $120.
Companies that paid Marissa Crofut the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marissa Crofut'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Marissa Crofut
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marissa Crofut's NPI number?
Marissa Crofut's NPI number is 1952959546. It was assigned on August 28, 2019, and it is active in the NPI Registry.
What does Marissa Crofut specialize in?
Marissa Crofut is a physician assistant in Danbury, Connecticut. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marissa Crofut practice?
Marissa Crofut practices at 24 Hospital Ave, Danbury, CT 06810. Marissa Crofut's primary practice is Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health. Dmand AI also links Marissa Crofut to 2 group practices and clinics and 2 medical groups.
What is Marissa Crofut's office phone number?
The practice phone on file for Marissa Crofut is (203) 739-7000.
What is Marissa Crofut's medical license number?
Marissa Crofut holds Connecticut license 5026, one of the licenses on file in 2 states.
Which states has Marissa Crofut been licensed in?
Dmand AI has state licenses on file for Marissa Crofut in Connecticut and New York.
Which hospitals is Marissa Crofut affiliated with?
Marissa Crofut practices at Northwell Danbury Hospital in Danbury, Connecticut. Marissa Crofut is also affiliated with Norwalk Hospital.
What medical group is Marissa Crofut part of?
Marissa Crofut is linked to Westchester Medical Center Advanced Physician Services. Dmand AI links Marissa Crofut to 2 more medical groups.
Does Marissa Crofut accept Medicare?
Yes. CMS lists Marissa Crofut as accepting Medicare assignment.
How many Medicare patients does Marissa Crofut see?
CMS counts 33 Medicare patients who saw Marissa Crofut in 2024, with an average age of 73.
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What drugs does Marissa Crofut prescribe most?
In 2024 Medicare Part D data, Marissa Crofut's most prescribed drugs by claims were Gabapentin, Creon and Levothyroxine Sodium.
Has Marissa Crofut received payments from drug or device companies?
CMS Open Payments shows $561 in general payments to Marissa Crofut from 16 companies from 2025 to 2025. The largest total came from Vertex Pharmaceuticals Incorporated.
How long has Marissa Crofut been practicing?
Marissa Crofut graduated from medical school in 2019, 7 years ago.
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