Joseph Sharkey, PA
NPI 1588682793 · Physician Assistant · Islip, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Sharkey, PA is a Physician Assistant provider in Islip, NY (NPI 1588682793).
Provider details
- NPI number
- 1588682793
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 005261 (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
19 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
358 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 234 | $202 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 59 | $124 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 53 | $74 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 12 | $13 |
Typical Medicare-allowed amounts for these services range $13–$202 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2015-03-27
Frequently asked questions
- What is Joseph Sharkey's NPI number?
- Joseph Sharkey's National Provider Identifier (NPI) is 1588682793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Sharkey's specialty?
- Joseph Sharkey is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joseph Sharkey located?
- Joseph Sharkey's practice location on file with NPPES is 32 Cedar Avenue Ext, Islip, NY 11751-4616.
- What is Joseph Sharkey's phone number?
- The practice phone number listed in the NPPES registry for Joseph Sharkey is (516) 343-2668.
- Does Joseph Sharkey accept Medicare?
- Joseph Sharkey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Sharkey's NPI active?
- Yes — Joseph Sharkey's NPI (1588682793) is active in the NPPES registry as of the last update on 2015-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.