Bianca Chang
NPI 1396188363 · Gastroenterology Physician · West Hollywood, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bianca Chang is a Gastroenterology Physician provider in West Hollywood, CA (NPI 1396188363).
Provider details
- NPI number
- 1396188363
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 036.140821 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
805 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) |
|---|---|---|
| Measurement of Hydrogen in Breath to Test for Stomach and Bowel Symptoms91065 | 268 | $10 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 144 | $154 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 65 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 58 | $104 |
| Biofeedback Training for Bowel Or Bladder Control, Each Additional 15 Minutes90913 | 56 | $25 |
| Biofeedback Training for Bowel Or Bladder Control, Initial 15 Minutes90912 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Linaclotidebrand: Linzess | 21 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,124 across 19 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
Additional practice locations (2)
- 5841 S Maryland AveMc 7082Chicago, IL 60637-1447Phone: (773) 702-6840
- 5841 S Maryland AveMc 7082Chicago, IL 60637-1447Phone: (773) 702-6840
Registry dates
- Enumerated
- 2013-04-09
- Last updated
- 2019-06-27
Frequently asked questions
- What is Bianca Chang's NPI number?
- Bianca Chang's National Provider Identifier (NPI) is 1396188363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bianca Chang's specialty?
- Bianca Chang is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Bianca Chang located?
- Bianca Chang's practice location on file with NPPES is 8700 Beverly Blvd, West Hollywood, CA 90048.
- What is Bianca Chang's phone number?
- The practice phone number listed in the NPPES registry for Bianca Chang is (818) 634-3603.
- Does Bianca Chang accept Medicare?
- Bianca Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bianca Chang's NPI active?
- Yes — Bianca Chang's NPI (1396188363) is active in the NPPES registry as of the last update on 2019-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.