Quick answers
- Does Jia Jiann Liaw accept Medicare assignment?
- Yes. Medicare's clinician data says Jia Jiann Liaw 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 Jia Jiann Liaw see?
- In 2024, CMS data shows 124 Original Medicare patients and 126 services for Jia Jiann Liaw. This counts Original Medicare only and measures volume, not quality.
- What is Jia Jiann Liaw's NPI number?
- 1609327774. 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 Jia Jiann Liaw, 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 | 124 |
|---|---|
| Services billed to Medicare | 126 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)72 services
- New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more (99202)37 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 pressure72%
- High cholesterol65%
- Arthritis35%
- Diabetes27%
- Anxiety26%
- Ischemic heart disease23%
Practice locations
Addresses where Jia Jiann Liaw is enrolled with Medicare (CMS data updated October 2, 2026).
- 273 Loudon Rd, Suite 7Concord, NH 03301 (603) 224‑0418
- 344 Russell St, Suite 5Hadley, MA 01035 (413) 584‑0452
Group practices
Medicare enrollment lists Jia Jiann Liaw as a member of these groups (CMS data updated October 2, 2026).
- Mass Optometric Associates, PLLC52 clinicians in the group
- Optometric Providers of New Hampshire, PLLC10 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Concord
Clinicians with the same Medicare primary specialty in Concord, NH — not a recommendation.
Other clinicians in Mass Optometric Associates, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | New England College Of Optometry |
| Graduation year | 2016 (10 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609327774 |
| 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