Quick answers
- Does Fang C. Chen accept Medicare assignment?
- Yes. Medicare's clinician data says Fang C. Chen 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 Fang C. Chen see?
- In 2024, CMS data shows 485 Original Medicare patients and 2,696 services for Fang C. Chen. This counts Original Medicare only and measures volume, not quality.
- What is Fang C. Chen's NPI number?
- 1255455689. 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 Fang C. Chen, 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 | 485 |
|---|---|
| Services billed to Medicare | 2,696 |
| Different services or procedures | 38 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)653 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)620 services
- Insertion of needle into vein for collection of blood sample (36415)571 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)225 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)144 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 cholesterol75%
- High blood pressure73%
- Arthritis41%
- Ischemic heart disease31%
- Diabetes25%
- Anxiety25%
Hospitals where Fang C. Chen works
Medicare's Facility Affiliation Data lists Fang C. Chen 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.
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330185
- Peconic Bay Medical CenterRiverhead, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330107
- Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330393
Practice locations
Addresses where Fang C. Chen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Heroes WayRiverhead, NY 11901 (631) 548‑6101
- 34 Commerce AveRiverhead, NY 11901 (631) 727‑1600
- 496 County Rd, 111 Bldg BManorville, NY 11949 (631) 405‑3200
Group practices
Medicare enrollment lists Fang C. Chen as a member of these groups (CMS data updated October 2, 2026).
- Central Suffolk Hospital95 clinicians in the group
- Peconic Bay Primary Medical Care71 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Riverhead
Clinicians with the same Medicare primary specialty in Riverhead, NY — not a recommendation.
Other clinicians in Central Suffolk Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Brody School Of Medicine At East Carolina University |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255455689 |
| 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