Quick answers
- Does Kelsey L. Hamill accept Medicare assignment?
- Yes. Medicare's clinician data says Kelsey L. Hamill 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 Kelsey L. Hamill see?
- In 2024, CMS data shows 98 Original Medicare patients and 346 services for Kelsey L. Hamill. This counts Original Medicare only and measures volume, not quality.
- What is Kelsey L. Hamill's NPI number?
- 1831725407. 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 Kelsey L. Hamill, 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 | 98 |
|---|---|
| Services billed to Medicare | 346 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Admn sarscov2 vacc 1 dose (90480)33 services
- Administration of influenza virus vaccine (G0008)29 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)24 services
- Influenza vaccine split virus, preservative free (90662)22 services
- Sarscov2 vac 50 mcg/0.5ml im (91322)19 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 cholesterol74%
- High blood pressure56%
- Arthritis44%
- Anxiety22%
- Diabetes19%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)19%
Hospitals where Kelsey L. Hamill works
Medicare's Facility Affiliation Data lists Kelsey L. Hamill 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.
- Chester County HospitalWest Chester, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390179
- Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390111
Practice locations
Addresses where Kelsey L. Hamill is enrolled with Medicare (CMS data updated October 2, 2026).
- 915 Old Fern Hill RdWest Chester, PA 19380 (610) 431‑3122
Group practices
Medicare enrollment lists Kelsey L. Hamill as a member of this group (CMS data updated October 2, 2026).
- Regional Gastroenterology Associates of Lancaster, Ltd.244 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in West Chester
Clinicians with the same Medicare primary specialty in West Chester, PA — not a recommendation.
Other clinicians in Regional Gastroenterology Associates of Lancaster, Ltd.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831725407 |
| 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