Quick answers
- Does Christina A. Chiang accept Medicare assignment?
- Yes. Medicare's clinician data says Christina A. Chiang 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 A. Chiang see?
- In 2024, CMS data shows 581 Original Medicare patients and 967 services for Christina A. Chiang. This counts Original Medicare only and measures volume, not quality.
- What is Christina A. Chiang's NPI number?
- 1619129772. 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 A. Chiang, 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 | 581 |
|---|---|
| Services billed to Medicare | 967 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Imaging of retina (92134)198 services
- Established patient complete exam of visual system (92014)180 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)142 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)135 services
- Exam of visual field with extended testing (92083)63 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 cholesterol69%
- High blood pressure59%
- Arthritis34%
- Diabetes28%
- Anxiety21%
- Ischemic heart disease20%
Hospitals where Christina A. Chiang works
Medicare's Facility Affiliation Data lists Christina A. Chiang 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
Practice locations
Addresses where Christina A. Chiang is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Associate DrOneonta, NY 13820 (607) 433‑6300
- 1 Atwell RdCooperstown, NY 13326
- 178 Grandview DrCobleskill, NY 12043 (518) 254‑3456
Group practices
Medicare enrollment lists Christina A. Chiang as a member of this group (CMS data updated October 2, 2026).
- Mary Imogene Bassett Hospital763 clinicians in the group
Specialties
- Optometryprimary
Other optometrists 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 | OD |
|---|---|
| Optometry school | Pennsylvania College Of Optometry |
| Graduation year | 2007 (19 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619129772 |
| 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