Marissa Crofut
Physician Assistant · Norwalk, CT
Marissa Crofut is a physician assistant with a practice address in Norwalk, Connecticut, and NPI 1952959546, issued on Aug 28, 2019. Check the license (Connecticut 5026, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa Crofut
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 5026 CT
023926 NY
Self-reported in NPPES; status is on the state search - Practice location
- 34 Maple St, Norwalk, CT 06850
- Phone
- (203) 852-2000
- Enumerated
- Aug 28, 2019
- Record last updated
- Oct 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201207001568); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,047 in Connecticut → Look up another NPI →
Also registered at 34 Maple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Muhammad Aamir, MDStudent in an Organized Health Care Education/Training Program1184411332
- Alexander Abadir, MDGastroenterology Physician1811429699
- Erica Acevedo, PA-CPhysician Assistant1093289936
- Bradley Acott, M.D.Student in an Organized Health Care Education/Training Program1689360836
- Laura Aguilar FrancoStudent in an Organized Health Care Education/Training Program1053248237
- Wasin Ahuja, M.D.Hospitalist Physician1932584588
Verify Marissa Crofut in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 5026Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average physician assistant in 2024
179 Medicare Part D claims for 78 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 15 claims were for opioids.
Most prescribed
- Gabapentin27 claims
- Creon24 claims
- Levothyroxine Sodium19 claims
- Loperamide13 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.
The MIPS final score for 2023 (Medicare payment program): 94.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $559.26
23 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- 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).
Marissa Crofut among 2,047 physician assistant records in Connecticut
Marissa Crofut is one of 2,047 physician assistant records with a practice address in Connecticut. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 55% of them.
- NPI issued2019 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2019 · median 2018 among the 1,338 with a school on file
- Record last updated2020 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 physician assistant records list a practice address in Norwalk
They are 54 of the 1,993 NPPES records with a practice address in Norwalk, and 2,047 physician assistant records in Connecticut.
All 2,047 in Connecticut → Every provider in Norwalk → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kaitlin Bisceglie, PANorwalk, CT 068501033565197
- Robert Blaisdell, PA-CNorwalk, CT 068501346768066
- Sarah Brennan, PANorwalk, CT 068501073761904
- Angela Brown, PANorwalk, CT 068501396708319
- Scott Brown, PA-CNorwalk, CT 068501366479388
- Nora Croll, PA-CNorwalk, CT 068501447632047
- Meglis Davis, PA-CNorwalk, CT 068501689927469
- Pamela Lawrence Fanning, PA-CNorwalk, CT 068501043438435
Common questions
What is Marissa Crofut's NPI number?
Marissa Crofut's National Provider Identifier (NPI) is 1952959546, issued on Aug 28, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Crofut located?
The NPPES record lists a practice address at 34 Maple St, Norwalk, CT, 06850. Phone: (203) 852-2000. Providers update this record themselves, so call before visiting.
How can I verify Marissa Crofut's license?
NPPES lists Connecticut license number 5026, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa Crofut prescribe under Medicare Part D?
In 2024, Marissa Crofut had 179 Medicare Part D claims for 78 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Marissa Crofut's MIPS final score?
The 2023 MIPS final score is 94.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.