Quick answers
- Does Kenneth R. Fretwell accept Medicare assignment?
- Yes. Medicare's clinician data says Kenneth R. Fretwell 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 Kenneth R. Fretwell see?
- In 2024, CMS data shows 39 Original Medicare patients and 77 services for Kenneth R. Fretwell. This counts Original Medicare only and measures volume, not quality.
- What is Kenneth R. Fretwell's NPI number?
- 1144281429. 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 Kenneth R. Fretwell, 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 | 39 |
|---|---|
| Services billed to Medicare | 77 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)29 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)11 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%
- Diabetes56%
- Arthritis41%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)41%
- Chronic kidney disease28%
Hospitals where Kenneth R. Fretwell works
Medicare's Facility Affiliation Data lists Kenneth R. Fretwell 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.
- Jamaica Hospital Medical CenterJamaica, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330014
Practice locations
Addresses where Kenneth R. Fretwell is enrolled with Medicare (CMS data updated October 2, 2026).
- 89 -06, Suite 2tJamaica, NY 11418 (718) 206‑7110
- 8900 Van Wyck ExpyJamaica, NY 11418 (718) 206‑6000
Group practices
Medicare enrollment lists Kenneth R. Fretwell as a member of these groups (CMS data updated October 2, 2026).
- Jamaica Hospital255 clinicians in the group
- TJH Medical Services PC219 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Jamaica
Clinicians with the same Medicare primary specialty in Jamaica, NY — not a recommendation.
Other clinicians in Jamaica Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144281429 |
| 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