John Byrne, M.D.
NPI 1144227208 · Allergy & Immunology Physician · Riverhead, NY
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Byrne, M.D. is a Allergy & Immunology Physician provider in Riverhead, NY (NPI 1144227208).
Provider details
- NPI number
- 1144227208
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2113491 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
9,598 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 5,371 | $5 |
| Test for Allergy Using Skin Patch95044 | 2,800 | $6 |
| Professional Service for Multiple Injections of Allergen95117 | 457 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 309 | $104 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 307 | $17 |
| Professional Service for Single Injection of Allergen95115 | 155 | $12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 130 | 62 |
| Fluticasone Propionate | 44 | 24 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 30 | — |
| Montelukast Sodium | 19 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 | 14 |
| Fluticasone Furoatebrand: Arnuity Ellipta | 16 | — |
| Epinephrine | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-05
- Last updated
- 2014-05-21
Frequently asked questions
- What is John Byrne's NPI number?
- John Byrne's National Provider Identifier (NPI) is 1144227208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Byrne's specialty?
- John Byrne is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is John Byrne located?
- John Byrne's practice location on file with NPPES is 1149 Old Country Road, Riverhead, NY 11901-2063.
- What is John Byrne's phone number?
- The practice phone number listed in the NPPES registry for John Byrne is (631) 591-2209.
- Does John Byrne accept Medicare?
- John Byrne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Byrne's NPI active?
- Yes — John Byrne's NPI (1144227208) is active in the NPPES registry as of the last update on 2014-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.