Quick answers
- Does Shih-Han Chan accept Medicare assignment?
- Yes. Medicare's clinician data says Shih-Han Chan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Shih-Han Chan see?
- In 2024, CMS data shows 1,036 Original Medicare patients and 5,960 services for Shih-Han Chan. This counts Original Medicare only and measures volume, not quality.
- What is Shih-Han Chan's NPI number?
- 1851588826. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Shih-Han Chan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,036 |
|---|---|
| Services billed to Medicare | 5,960 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 81 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)3,878 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)957 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)905 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)138 services
- Critical care, first 30-74 minutes (99291)66 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis74%
- Ischemic heart disease67%
- Diabetes53%
- Heart failure52%
Hospitals where Shih-Han Chan works
Medicare's Facility Affiliation Data lists Shih-Han Chan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Chsli St Joseph HospitalBethpage, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330332
- North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
- Plainview HospitalPlainview, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330331
Practice locations
Addresses where Shih-Han Chan is enrolled with Medicare (CMS data updated October 2, 2026).
- 221 Jericho TpkeSyosset, NY 11791 (516) 496‑6400
- 4295 Hempstead TpkeBethpage, NY 11714 (516) 579‑6000
- 888 Old Country RdPlainview, NY 11803 (516) 719‑3000
Specialties
- Infectious Diseaseprimary
Other infectious disease doctors in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851588826 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians