Quick answers
- Does Audrey S. Chan accept Medicare assignment?
- Yes. Medicare's clinician data says Audrey S. Chan 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 Audrey S. Chan see?
- In 2024, CMS data shows 2,053 Original Medicare patients and 5,804 services for Audrey S. Chan. This counts Original Medicare only and measures volume, not quality.
- What is Audrey S. Chan's NPI number?
- 1942281134. 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 Audrey S. Chan, 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 | 2,053 |
|---|---|
| Services billed to Medicare | 5,804 |
| Different services or procedures | 47 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Removal of cataract with insertion of prosthetic lens (66984)1,308 services
- Established patient complete exam of visual system (92014)1,116 services
- Measurement of corneal curvature and depth of eye (92136)829 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)519 services
- Established patient problem focused exam of visual system (92012)441 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 cholesterol75%
- High blood pressure69%
- Arthritis50%
- Anxiety25%
- Ischemic heart disease23%
- Osteoporosis23%
Practice locations
Addresses where Audrey S. Chan is enrolled with Medicare (CMS data updated October 2, 2026).
- 282 Route 130Sandwich, MA 02563 (508) 833‑8222
- 88 Ansel Hallet RdWest Yarmouth, MA 02673 (508) 771‑4848
Group practices
Medicare enrollment lists Audrey S. Chan as a member of this group (CMS data updated October 2, 2026).
- Ophthalmic Consultants of Boston Inc68 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Sandwich
Clinicians with the same Medicare primary specialty in Sandwich, MA — not a recommendation.
Other clinicians in Ophthalmic Consultants of Boston Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942281134 |
| 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
- 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