Quick answers
- Does Monica Liao Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Monica Liao Chang 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 Monica Liao Chang see?
- In 2024, CMS data shows 33 Original Medicare patients and 65 services for Monica Liao Chang. This counts Original Medicare only and measures volume, not quality.
- What is Monica Liao Chang's NPI number?
- 1760741235. 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 Monica Liao Chang, 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 | 33 |
|---|---|
| Services billed to Medicare | 65 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 66 |
Most frequent services
- Administration of hepatitis b vaccine (G0010)14 services
- Admn sarscov2 vacc 1 dose (90480)12 services
- Sarscv2 vac 30mcg trs-suc im (91320)12 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 cholesterol64%
- High blood pressure45%
- Diabetes42%
Practice locations
Addresses where Monica Liao Chang is enrolled with Medicare (CMS data updated October 2, 2026).
- 230 Maple StHolyoke, MA 01040 (413) 420‑2200
Group practices
Medicare enrollment lists Monica Liao Chang as a member of this group (CMS data updated October 2, 2026).
- Holyoke Health Center Inc.42 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Other clinicians in Holyoke Health Center Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760741235 |
| 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