Aloyisus Tsang, M.D.
NPI 1891856340 · Internal Medicine Physician · Burbank, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aloyisus Tsang, M.D. is a Internal Medicine Physician provider in Burbank, CA (NPI 1891856340).
Provider details
- NPI number
- 1891856340
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G80123 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,437 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 860 | $140 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 329 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test85027 | 305 | $6 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 305 | $17 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 282 | $9 |
| Hemoglobin A1c Level83036 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 117 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 496 | 161 |
| Atorvastatin Calcium | 306 | 99 |
| Amlodipine Besylate | 267 | 94 |
| Levothyroxine Sodium | 240 | 77 |
| Trazodone Hcl | 210 | 68 |
| Telmisartan | 203 | 65 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Aloyisus Tsang's NPI number?
- Aloyisus Tsang's National Provider Identifier (NPI) is 1891856340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aloyisus Tsang's specialty?
- Aloyisus Tsang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Aloyisus Tsang located?
- Aloyisus Tsang's practice location on file with NPPES is 4323 W Riverside Dr, Burbank, CA 91505-4044.
- What is Aloyisus Tsang's phone number?
- The practice phone number listed in the NPPES registry for Aloyisus Tsang is (818) 556-2700.
- Does Aloyisus Tsang accept Medicare?
- Aloyisus Tsang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aloyisus Tsang's NPI active?
- Yes — Aloyisus Tsang's NPI (1891856340) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.