Brian Tzung, M.D.
NPI 1437313582 · Diagnostic Radiology Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Tzung, M.D. is a Diagnostic Radiology Physician provider in Mission Viejo, CA (NPI 1437313582).
Provider details
- NPI number
- 1437313582
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A95890 (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
17 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
5,555 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 1,249 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 434 | $40 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 240 | $85 |
| X-Ray of Chest, 2 Views71046 | 238 | $11 |
| Ct Scan of Chest Without Contrast71250 | 225 | $53 |
| Ct Scan of Upper Spine Without Contrast72125 | 167 | $48 |
| Ct Scan of Abdomen and Pelvis With Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-17
- Last updated
- 2014-05-08
Frequently asked questions
- What is Brian Tzung's NPI number?
- Brian Tzung's National Provider Identifier (NPI) is 1437313582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Tzung's specialty?
- Brian Tzung is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Tzung located?
- Brian Tzung's practice location on file with NPPES is 27700 Medical Center Rd, Mission Viejo, CA 92691-6426.
- What is Brian Tzung's phone number?
- The practice phone number listed in the NPPES registry for Brian Tzung is (949) 364-7744.
- Does Brian Tzung accept Medicare?
- Brian Tzung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Tzung's NPI active?
- Yes — Brian Tzung's NPI (1437313582) is active in the NPPES registry as of the last update on 2014-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.