Tien-Yu Chang, M.D.
NPI 1225213515 · Anesthesiology Physician · Panorama City, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tien-Yu Chang, M.D. is a Anesthesiology Physician provider in Panorama City, CA (NPI 1225213515).
Provider details
- NPI number
- 1225213515
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A93643 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
171 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 37 | $431 |
| Anesthesia for Total Hip Replacement01214 | 27 | $441 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 27 | $65 |
| Continuous Infusion of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve) Through Catheter64448 | 16 | $72 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 15 | $44 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 13 | $177 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$258 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-01-04
- Last updated
- 2010-07-13
Frequently asked questions
- What is Tien-Yu Chang's NPI number?
- Tien-Yu Chang's National Provider Identifier (NPI) is 1225213515, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tien-Yu Chang's specialty?
- Tien-Yu Chang is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Tien-Yu Chang located?
- Tien-Yu Chang's practice location on file with NPPES is 13652 Cantara St, Panorama City, CA 91402-5423.
- What is Tien-Yu Chang's phone number?
- The practice phone number listed in the NPPES registry for Tien-Yu Chang is (818) 375-2809.
- Does Tien-Yu Chang accept Medicare?
- Tien-Yu Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tien-Yu Chang's NPI active?
- Yes — Tien-Yu Chang's NPI (1225213515) is active in the NPPES registry as of the last update on 2010-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.