Quick answers
- Does Christina M. Hahn accept Medicare assignment?
- Yes. Medicare's clinician data says Christina M. Hahn 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 Christina M. Hahn see?
- In 2024, CMS data shows 353 Original Medicare patients and 510 services for Christina M. Hahn. This counts Original Medicare only and measures volume, not quality.
- What is Christina M. Hahn's NPI number?
- 1891135869. 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 Christina M. Hahn, 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 | 353 |
|---|---|
| Services billed to Medicare | 510 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)183 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)86 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)51 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)49 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)36 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%
- Ischemic heart disease63%
- Arthritis56%
- Heart failure49%
- Diabetes40%
Hospitals where Christina M. Hahn works
Medicare's Facility Affiliation Data lists Christina M. Hahn 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.
- Garnet Health Medical CenterMiddletown, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330126
- Garnet Health Medical Center CatskillsHarris, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330386
Practice locations
Addresses where Christina M. Hahn is enrolled with Medicare (CMS data updated October 2, 2026).
- 68 Harris Bushville RdHarris, NY 12742 (845) 333‑8909
Group practices
Medicare enrollment lists Christina M. Hahn as a member of this group (CMS data updated October 2, 2026).
- Garnet Health Doctors PC165 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Harris
Clinicians with the same Medicare primary specialty in Harris, NY — not a recommendation.
Other clinicians in Garnet Health Doctors PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2013 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891135869 |
| 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