Marissa Ennis, MSN
NPI 1649723214 · Nurse Practitioner · Jacksonville, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Ennis, MSN is a Nurse Practitioner provider in Jacksonville, FL (NPI 1649723214).
Provider details
- NPI number
- 1649723214
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN
- Sex
- Female
- Sole proprietor
- No
- License
- ARNP3022642 (FL)
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
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
797 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 552 | $105 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $75 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 83 | $14 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 27 | $139 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 26 | $75 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 156 | 57 |
| Apixabanbrand: Eliquis | 152 | 33 |
| Atorvastatin Calcium | 128 | 45 |
| Rosuvastatin Calcium | 111 | 46 |
| Amoxicillin | 85 | 75 |
| Amlodipine Besylate | 78 | 25 |
| Ezetimibe | 57 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$269 across 2 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
Registry dates
- Enumerated
- 2016-07-29
- Last updated
- 2020-08-28
- Certified
- 2020-08-28
Frequently asked questions
- What is Marissa Ennis's NPI number?
- Marissa Ennis's National Provider Identifier (NPI) is 1649723214, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Ennis's specialty?
- Marissa Ennis is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Ennis located?
- Marissa Ennis's practice location on file with NPPES is 4500 San Pablo Rd S, Jacksonville, FL 32224-1865.
- What is Marissa Ennis's phone number?
- The practice phone number listed in the NPPES registry for Marissa Ennis is (904) 953-2000.
- Does Marissa Ennis accept Medicare?
- Marissa Ennis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Ennis's NPI active?
- Yes — Marissa Ennis's NPI (1649723214) is active in the NPPES registry as of the last update on 2020-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.