Quick answers
- Does Yen Chen Liu accept Medicare assignment?
- Yes. Medicare's clinician data says Yen Chen Liu 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 Yen Chen Liu see?
- In 2024, CMS data shows 1,544 Original Medicare patients and 6,848 services for Yen Chen Liu. This counts Original Medicare only and measures volume, not quality.
- What is Yen Chen Liu's NPI number?
- 1316269160. 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 Yen Chen Liu, 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 | 1,544 |
|---|---|
| Services billed to Medicare | 6,848 |
| Different services or procedures | 87 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)1,666 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)920 services
- Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks (17311)595 services
- Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm (12032)530 services
- Destruction of precancer skin growth, 15 or more growths (17004)349 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 pressure74%
- High cholesterol73%
- Arthritis39%
- Ischemic heart disease25%
- Diabetes22%
- Chronic kidney disease22%
Hospitals where Yen Chen Liu works
Medicare's Facility Affiliation Data lists Yen Chen Liu 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.
- Hancock County Health SystemBritt, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161307
- MercyOne North Iowa Medical CenterMason City, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160064
- Mitchell County Regional HealthOsage, IA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 161323
Practice locations
Addresses where Yen Chen Liu is enrolled with Medicare (CMS data updated October 2, 2026).
- 1010 4th St SW, 340 Mercyone North Iowa Family Medicine ResMason City, IA 50401 (641) 428‑7766
- 1421 4th St SW, Mercyone North Iowa Dermatology CareMason City, IA 50401 (641) 428‑2080
- 616 N 8th StOsage, IA 50461 (641) 732‑6000
- 620 N 8th StOsage, IA 50461 (641) 732‑6100
Group practices
Medicare enrollment lists Yen Chen Liu as a member of these groups (CMS data updated October 2, 2026).
- North Iowa Mercy Clinics302 clinicians in the group
- Mitchell County Memorial Hospital26 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Iowa
Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.
Other clinicians in North Iowa Mercy Clinics
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316269160 |
| 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