Timothy O'Byrne, MD
NPI 1538144514 · Cardiovascular Disease Physician · Staten Island, NY
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy O'Byrne, MD is a Cardiovascular Disease Physician provider in Staten Island, NY (NPI 1538144514).
Provider details
- NPI number
- 1538144514
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 194645 (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
3,204 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 | 1,601 | $139 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 947 | $16 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 364 | $216 |
| Ultrasound of Heart With Continuous Electrocardiogram (ecg) During Rest, Exercise And/Or Drug Induced Stress With Review and Report93351 | 55 | $254 |
| Electrocardiogram (ecg) Up to 30 Days Continuous With Review and Report By Health Care Professional93228 | 42 | $26 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 1,232 | 383 |
| Atorvastatin Calcium | 984 | 299 |
| Amlodipine Besylate | 877 | 268 |
| Metoprolol Succinate | 778 | 238 |
| Losartan Potassium | 531 | 155 |
| Apixabanbrand: Eliquis | 433 | 123 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-13
- Last updated
- 2026-05-15
- Certified
- 2026-05-15
Frequently asked questions
- What is Timothy O'Byrne's NPI number?
- Timothy O'Byrne's National Provider Identifier (NPI) is 1538144514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy O'Byrne's specialty?
- Timothy O'Byrne is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy O'Byrne located?
- Timothy O'Byrne's practice location on file with NPPES is 501 Seaview Ave, Staten Island, NY 10305-3436.
- What is Timothy O'Byrne's phone number?
- The practice phone number listed in the NPPES registry for Timothy O'Byrne is (718) 667-0077.
- Does Timothy O'Byrne accept Medicare?
- Timothy O'Byrne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy O'Byrne's NPI active?
- Yes — Timothy O'Byrne's NPI (1538144514) is active in the NPPES registry as of the last update on 2026-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.