Stacy O'Brien, APRN
NPI 1538585419 · Clinical Nurse Specialist · Fort Myers, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stacy O'Brien, APRN is a Clinical Nurse Specialist provider in Fort Myers, FL (NPI 1538585419).
Provider details
- NPI number
- 1538585419
- Entity type
- Individual
- Primary specialty
- Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- APRN9278693 (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 tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
113 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 78 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $76 |
Typical Medicare-allowed amounts for these services range $76–$106 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluconazole | 37 | 27 |
| Doxycycline Hyclate | 36 | 23 |
| Daptomycin | 22 | — |
| Ciprofloxacin Hcl | 19 | 17 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 16 | 14 |
| Cefuroxime Axetilbrand: Cefuroxime | 15 | 15 |
| Micafungin Sodiumbrand: Micafungin | 15 | — |
Practice location
Mailing address
Additional practice locations (1)
- 9981 S Healthpark Dr Ste 454Fort Myers, FL 33908-3618Phone: (239) 343-9710Fax: (239) 343-9715
Registry dates
- Enumerated
- 2014-03-14
- Last updated
- 2021-03-29
- Certified
- 2021-03-29
Frequently asked questions
- What is Stacy O'Brien's NPI number?
- Stacy O'Brien's National Provider Identifier (NPI) is 1538585419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stacy O'Brien's specialty?
- Stacy O'Brien is listed in the NPPES registry with a primary specialty of Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stacy O'Brien located?
- Stacy O'Brien's practice location on file with NPPES is 2780 Cleveland Ave Ste 809, Fort Myers, FL 33901-5817.
- What is Stacy O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Stacy O'Brien is (239) 343-9680.
- Does Stacy O'Brien accept Medicare?
- Stacy O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stacy O'Brien's NPI active?
- Yes — Stacy O'Brien's NPI (1538585419) is active in the NPPES registry as of the last update on 2021-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.