Quick answers
- Does Allen S. Liu accept Medicare assignment?
- Yes. Medicare's clinician data says Allen S. 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 Allen S. Liu see?
- In 2024, CMS data shows 255 Original Medicare patients and 986 services for Allen S. Liu. This counts Original Medicare only and measures volume, not quality.
- What is Allen S. Liu's NPI number?
- 1902975907. 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 Allen S. 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 | 255 |
|---|---|
| Services billed to Medicare | 986 |
| Different services or procedures | 140 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- X-ray of wrist, minimum of 3 views (73110)79 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)78 services
- X-ray of hand, minimum of 3 views (73130)66 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)63 services
- Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)58 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 pressure73%
- Arthritis58%
- Ischemic heart disease34%
- Diabetes30%
- Chronic kidney disease29%
Hospitals where Allen S. Liu works
Medicare's Facility Affiliation Data lists Allen S. 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.
- Banner Desert Medical CenterMesa, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030065
- Banner Thunderbird Medical CenterGlendale, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 030089
- Chandler Regional Medical CenterChandler, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030036
- Honor Health John C. Lincoln Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030014
- HonorHealth Scottsdale Osborn Medical CenterScottsdale, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030038
Practice locations
Addresses where Allen S. Liu is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1520 S Dobson Rd, Suite 210Mesa, AZ 85202 (602) 258‑4788
- 15830 N 35th Ave, Suite 1Phoenix, AZ 85053 (602) 258‑4788
- 3329 E Bell Rd, Suite A5Phoenix, AZ 85032 (602) 258‑4788
- 370 E Virginia Ave, Suite 100Phoenix, AZ 85004 (602) 258‑4788
- 9220 E Mountain View Rd, Suite 102Scottsdale, AZ 85258 (602) 258‑4788
Group practices
Medicare enrollment lists Allen S. Liu as a member of this group (CMS data updated October 2, 2026).
- Arizona Center for Hand Surgery PC31 clinicians in the group
Specialties
Find other Plastic and Reconstructive Surgery doctors in Arizona →
Other plastic surgeons in Mesa
Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.
Other clinicians in Arizona Center for Hand Surgery PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902975907 |
| 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