Haley Riordan, PHYSICIAN ASSISTANT
NPI 1366843781 · Physician Assistant · East Setauket, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Haley Riordan, PHYSICIAN ASSISTANT is a Physician Assistant provider in East Setauket, NY (NPI 1366843781).
Provider details
- NPI number
- 1366843781
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PHYSICIAN ASSISTANT
- Sex
- Female
- Sole proprietor
- No
- License
- 018106 (NY)
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
11 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
60 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) |
|---|---|---|
| Replacement of Knee Joint, Both Sides of Knee27447 | 32 | $213 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 | $91 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 13 | $75 |
Typical Medicare-allowed amounts for these services range $75–$213 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Diclofenac Sodium | 66 | 19 |
| Celecoxib | 53 | 13 |
| Meloxicam | 51 | 21 |
| Amoxicillin | 18 | 15 |
| Piroxicam | 15 | — |
| Oxycodone Hcl | 13 | — |
| Tramadol Hcl | 13 | — |
| Ibuprofen | 11 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-09-05
- Last updated
- 2014-10-22
Frequently asked questions
- What is Haley Riordan's NPI number?
- Haley Riordan's National Provider Identifier (NPI) is 1366843781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Haley Riordan's specialty?
- Haley Riordan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Haley Riordan located?
- Haley Riordan's practice location on file with NPPES is 14 Technology Dr Ste 11, East Setauket, NY 11733-3464.
- What is Haley Riordan's phone number?
- The practice phone number listed in the NPPES registry for Haley Riordan is (631) 444-4233.
- Does Haley Riordan accept Medicare?
- Haley Riordan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Haley Riordan's NPI active?
- Yes — Haley Riordan's NPI (1366843781) is active in the NPPES registry as of the last update on 2014-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.