Marissa Crofut
NPI 1952959546 · Physician Assistant · Norwalk, CT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Crofut is a Physician Assistant provider in Norwalk, CT (NPI 1952959546).
Provider details
- NPI number
- 1952959546
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 023926 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 27 | 27 |
| Lipase/Protease/Amylasebrand: Creon | 24 | — |
| Levothyroxine Sodium | 19 | — |
| Loperamide Hclbrand: Loperamide | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$559 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 24 Hospital AveDanbury, CT 06810-6099Phone: (203) 739-7000
- 100 Woods RdValhalla, NY 10595-1530Phone: (914) 493-7000
Registry dates
- Enumerated
- 2019-08-28
- Last updated
- 2020-10-29
- Certified
- 2020-10-29
Frequently asked questions
- What is Marissa Crofut's NPI number?
- Marissa Crofut's National Provider Identifier (NPI) is 1952959546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Crofut's specialty?
- Marissa Crofut is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Crofut located?
- Marissa Crofut's practice location on file with NPPES is 34 Maple St, Norwalk, CT 06850-3815.
- What is Marissa Crofut's phone number?
- The practice phone number listed in the NPPES registry for Marissa Crofut is (203) 852-2000.
- Does Marissa Crofut accept Medicare?
- Marissa Crofut is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Crofut's NPI active?
- Yes — Marissa Crofut's NPI (1952959546) is active in the NPPES registry as of the last update on 2020-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.