Sean Cloonan, M.D.
NPI 1912171430 · Infectious Disease Physician · Harrison, NY
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Cloonan, M.D. is a Infectious Disease Physician provider in Harrison, NY (NPI 1912171430).
Provider details
- NPI number
- 1912171430
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 254788 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,574 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 644 | $93 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 203 | $99 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 147 | $59 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 137 | $78 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 110 | $155 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Monohydrate | 105 | 52 |
| Cefuroxime Axetilbrand: Cefuroxime | 59 | 23 |
| Ertapenem Sodiumbrand: Ertapenem | 52 | 11 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 43 | 18 |
| Ceftriaxone Sodiumbrand: Ceftriaxone | 40 | — |
| Cephalexin | 37 | 12 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 across 2 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
Additional practice locations (1)
- 423 E 23rd StNew York, NY 10010-5011Phone: (212) 686-7500
Registry dates
- Enumerated
- 2008-04-15
- Last updated
- 2018-12-20
Frequently asked questions
- What is Sean Cloonan's NPI number?
- Sean Cloonan's National Provider Identifier (NPI) is 1912171430, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Cloonan's specialty?
- Sean Cloonan is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Cloonan located?
- Sean Cloonan's practice location on file with NPPES is 600 Mamaroneck Ave, Harrison, NY 10528-1635.
- What is Sean Cloonan's phone number?
- The practice phone number listed in the NPPES registry for Sean Cloonan is (914) 723-8100.
- Does Sean Cloonan accept Medicare?
- Sean Cloonan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Cloonan's NPI active?
- Yes — Sean Cloonan's NPI (1912171430) is active in the NPPES registry as of the last update on 2018-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.