Joanna Chang, MD
NPI 1346738903 · Neurology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Chang, MD is a Neurology Physician provider in Houston, TX (NPI 1346738903).
Provider details
- NPI number
- 1346738903
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- 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 tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
505 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 111 | $168 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 108 | $127 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 91 | $221 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 53 | $91 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 41 | $182 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 177 | 62 |
| Gabapentin | 169 | 48 |
| Propranolol Hcl | 42 | 15 |
| Topiramate | 39 | 12 |
| Duloxetine Hcl | 37 | — |
| Memantine Hcl | 36 | 14 |
| Quetiapine Fumarate | 31 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$194 across 9 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
- 2018-04-28
- Last updated
- 2024-03-14
- Certified
- 2024-03-14
Frequently asked questions
- What is Joanna Chang's NPI number?
- Joanna Chang's National Provider Identifier (NPI) is 1346738903, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Chang's specialty?
- Joanna Chang is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Joanna Chang located?
- Joanna Chang's practice location on file with NPPES is 9090 Katy Fwy Ste 200, Houston, TX 77024-1696.
- What is Joanna Chang's phone number?
- The practice phone number listed in the NPPES registry for Joanna Chang is (832) 522-8720.
- Does Joanna Chang accept Medicare?
- Joanna Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Chang's NPI active?
- Yes — Joanna Chang's NPI (1346738903) is active in the NPPES registry as of the last update on 2024-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.