Carolyn Flaherty, RN
NPI 1538473731 · Psychiatric/Mental Health Nurse Practitioner · W. Islip, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Flaherty, RN is a Psychiatric/Mental Health Nurse Practitioner provider in W. Islip, NY (NPI 1538473731).
Provider details
- NPI number
- 1538473731
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 402764 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
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
15 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
125 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 125 | $71 |
Typical Medicare-allowed amounts for these services range $71–$71 (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 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 168 | 13 |
| Trazodone Hcl | 128 | 15 |
| Benztropine Mesylate | 101 | 13 |
| Aripiprazole | 99 | — |
| Lamotrigine | 95 | 11 |
| Paliperidone Palmitatebrand: Invega Sustenna | 84 | 11 |
| Escitalopram Oxalate | 71 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$927 across 22 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
- 2010-07-29
- Last updated
- 2026-02-11
- Certified
- 2026-02-11
Frequently asked questions
- What is Carolyn Flaherty's NPI number?
- Carolyn Flaherty's National Provider Identifier (NPI) is 1538473731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Flaherty's specialty?
- Carolyn Flaherty is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Carolyn Flaherty located?
- Carolyn Flaherty's practice location on file with NPPES is 31 Sequams Lane, W. Islip, NY 11795.
- What is Carolyn Flaherty's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Flaherty is (631) 669-8377.
- Does Carolyn Flaherty accept Medicare?
- Carolyn Flaherty is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Flaherty's NPI active?
- Yes — Carolyn Flaherty's NPI (1538473731) is active in the NPPES registry as of the last update on 2026-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.