Quick answers
- Does Day F. Hills accept Medicare assignment?
- Yes. Medicare's clinician data says Day F. Hills 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 Day F. Hills see?
- In 2024, CMS data shows 168 Original Medicare patients and 619 services for Day F. Hills. This counts Original Medicare only and measures volume, not quality.
- What is Day F. Hills's NPI number?
- 1477520401. 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 Day F. Hills, 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 | 168 |
|---|---|
| Services billed to Medicare | 619 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)213 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)181 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)159 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)19 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)16 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 cholesterol73%
- High blood pressure67%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)52%
- Arthritis30%
- Ischemic heart disease29%
- Diabetes28%
Hospitals where Day F. Hills works
Medicare's Facility Affiliation Data lists Day F. Hills 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.
- Aurelia Osborn Fox Memorial HospitalOneonta, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330085
- Bassett HealthcareCooperstown, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330136
- Cobleskill Regional HospitalCobleskill, NY · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 331320
- Little Falls HospitalLittle Falls, NY · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 331311
- O'Connor HospitalDelhi, NY · Critical Access Hospital · Emergency services: listed by Medicare · CCN 331305
Practice locations
Addresses where Day F. Hills is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Atwell RdCooperstown, NY 13326 (607) 547‑3480
Group practices
Medicare enrollment lists Day F. Hills as a member of this group (CMS data updated October 2, 2026).
- Mary Imogene Bassett Hospital763 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Other clinicians in Mary Imogene Bassett Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1477520401 |
| 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