Marissa Casillo, FNP
Family Nurse Practitioner · Foxboro, MA
Marissa Casillo, FNP is a family nurse practitioner with a practice address in Foxboro, Massachusetts, and NPI 1972251817, issued on Mar 10, 2022. Check the license (Massachusetts RN2273512, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa Casillo
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- RN2273512 MA
F03210086 MA
Self-reported in NPPES; status is on the state search - Practice location
- 18 Washington St, Foxboro, MA 02035
- Phone
- (781) 551-5812
- Enumerated
- Mar 10, 2022
- Entity
- Type 1 · individual
Also registered at 18 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ozaire Awais, MDNeurology Physician1932467040
- Kristen Babinski, MDNeurology Physician1801094719
- Maria Bartkus, MDNeurology Physician1780246736
- Donna Bradley, RPTPhysical Therapist1639349772
- Elizabeth Budman, M.D.Internal Medicine Physician1235427410
- Cara Burdette, SLPSpeech-Language Pathologist1609562156
Verify Marissa Casillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2273512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
5% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,233 Medicare Part D claims for 171 beneficiaries, against an average of 1,302 among the 128,048 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims. 18 claims were for opioids.
Most prescribed
- Gabapentin140 claims
- Ubrelvy109 claims
- Nurtec Odt92 claims
- Baclofen69 claims
- Dalfampridine Er65 claims
- Emgality Pen65 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.
Industry payments in 2024: $3,784.97
143 payments, mostly food and beverage; the largest payer was Lundbeck LLC. The 91,435 providers of this specialty with any payment received $675.31 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.
8 family nurse practitioner records list a Foxboro practice address
They are 8 of the 305 NPPES records with a Foxboro practice address, and 4,241 family nurse practitioner records in Massachusetts.
All 8 in Foxboro → All 4,241 in Massachusetts → Every provider in Foxboro →
Other family nurse practitioner records in Massachusetts
- Christina Abate, N.P.Boston, MA1235414970
- Katelynne Abbott, NPDanvers, MA1932355880
- Georgette Abboud, FNP-CHanscom Afb, MA1538593686
- Irfana Abdulhameed, FNPNorthborough, MA1417661786
- Christine Abraham, NPSouthborough, MA1215774658
- Catherine Abrams, FNP-CNorth Dartmouth, MA1528790599
- Wendy Abrams, FNPBoston, MA1962557801
- Michelle Abreu, FNP-BCArlington, MA1346138914
- Karolyn Abreu Blanco, FNP-BCLawrence, MA1043007644
- Carleigh AbromovitzBoston, MA1861215261
Common questions
What is Marissa Casillo, FNP's NPI number?
Marissa Casillo, FNP's National Provider Identifier (NPI) is 1972251817, issued on Mar 10, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Casillo, FNP located?
The NPPES record lists a practice address at 18 Washington St, Foxboro, MA, 02035. Phone: (781) 551-5812. Providers update this record themselves, so call before visiting.
How can I verify Marissa Casillo, FNP's license?
NPPES lists Massachusetts license number RN2273512, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa Casillo, FNP prescribe under Medicare Part D?
In 2024, Marissa Casillo, FNP had 1,233 Medicare Part D claims for 171 beneficiaries; the average among family nurse practitioner prescribers was 1,302. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.