Albert Tzeng, DO
NPI 1831695758 · Hospitalist Physician · Fairfax, VA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Albert Tzeng, DO is a Hospitalist Physician provider in Fairfax, VA (NPI 1831695758).
Provider details
- NPI number
- 1831695758
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
833 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 352 | $183 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 271 | $126 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 87 | $122 |
| Critical Care, First 30-74 Minutes99291 | 77 | $225 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 18 | $83 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 17 |
Practice location
Mailing address
Additional practice locations (1)
- 836 W Wellington AveChicago, IL 60657-5147Phone: (773) 296-5424Fax: (773) 296-5265
Registry dates
- Enumerated
- 2018-03-30
- Last updated
- 2022-04-01
- Certified
- 2022-04-01
Frequently asked questions
- What is Albert Tzeng's NPI number?
- Albert Tzeng's National Provider Identifier (NPI) is 1831695758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Albert Tzeng's specialty?
- Albert Tzeng is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Albert Tzeng located?
- Albert Tzeng's practice location on file with NPPES is 3600 Joseph Siewick Dr, Fairfax, VA 22033-1709.
- What is Albert Tzeng's phone number?
- The practice phone number listed in the NPPES registry for Albert Tzeng is (703) 391-3600.
- Does Albert Tzeng accept Medicare?
- Albert Tzeng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Albert Tzeng's NPI active?
- Yes — Albert Tzeng's NPI (1831695758) is active in the NPPES registry as of the last update on 2022-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.