Alyssa Allen, FNP-BC
NPI 1205554375 · Family Nurse Practitioner · Setauket, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alyssa Allen, FNP-BC is a Family Nurse Practitioner provider in Setauket, NY (NPI 1205554375).
Provider details
- NPI number
- 1205554375
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 734318-01 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
3 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
329 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) |
|---|---|---|
| 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 | 87 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 67 | $123 |
| Stool Analysis for Blood, By Peroxidase Activity82272 | 59 | $4 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 43 | $88 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 38 | $109 |
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 |
|---|---|---|
| Omeprazole | 393 | 192 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 337 | 333 |
| Pantoprazole Sodium | 282 | 137 |
| Dicyclomine Hcl | 95 | 53 |
| Famotidine | 69 | 35 |
| Linaclotidebrand: Linzess | 53 | 27 |
| Mesalamine | 52 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-08-16
- Last updated
- 2022-08-16
- Certified
- 2022-07-10
Frequently asked questions
- What is Alyssa Allen's NPI number?
- Alyssa Allen's National Provider Identifier (NPI) is 1205554375, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyssa Allen's specialty?
- Alyssa Allen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alyssa Allen located?
- Alyssa Allen's practice location on file with NPPES is 3400 Nesconset Hwy Ste 101, Setauket, NY 11733-3327.
- What is Alyssa Allen's phone number?
- The practice phone number listed in the NPPES registry for Alyssa Allen is (631) 751-8700.
- Does Alyssa Allen accept Medicare?
- Alyssa Allen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alyssa Allen's NPI active?
- Yes — Alyssa Allen's NPI (1205554375) is active in the NPPES registry as of the last update on 2022-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.