Marissa Mccarron, PA
NPI 1689804593 · Physician Assistant · Islandia, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Mccarron, PA is a Physician Assistant provider in Islandia, NY (NPI 1689804593).
Provider details
- NPI number
- 1689804593
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
232 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 104 | $49 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 56 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $95 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $65 |
| Insertion of Needle Into Vein (3 Years Or Older)36410 | 19 | $9 |
Typical Medicare-allowed amounts for these services range $9–$95 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 211 | 75 |
| Oxycodone Hcl | 124 | 47 |
| Gabapentin | 101 | 42 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 84 | 34 |
| Meloxicam | 59 | 21 |
| Pregabalin | 45 | 20 |
| Diazepam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$81 across 4 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 (1)
- 1743 N Ocean AveMedford, NY 11763-2649Phone: (631) 758-3100
Registry dates
- Enumerated
- 2009-07-27
- Last updated
- 2019-03-26
Frequently asked questions
- What is Marissa Mccarron's NPI number?
- Marissa Mccarron's National Provider Identifier (NPI) is 1689804593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Mccarron's specialty?
- Marissa Mccarron is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Mccarron located?
- Marissa Mccarron's practice location on file with NPPES is 3001 Expressway Dr N Ste 104, Islandia, NY 11749-5301.
- What is Marissa Mccarron's phone number?
- The practice phone number listed in the NPPES registry for Marissa Mccarron is (631) 435-0110.
- Does Marissa Mccarron accept Medicare?
- Marissa Mccarron is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Mccarron's NPI active?
- Yes — Marissa Mccarron's NPI (1689804593) is active in the NPPES registry as of the last update on 2019-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.