P Praxis·MD
● Active Type 1 · Individual

David Chang, DO

Emergency Medicine·Sunnyvale, TX· NPI 1538797691 · Enumerated 2020 · 6 years on NPI
Chang is 1 of 14 emergency medicine providers in Sunnyvale and 1 of 6039 in Texas.
NPI age
6 years
Enumerated 2020-04-01
Primary specialty
Emergency Medicine
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2023-08-03
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org

How this provider compares

Across 6039 active emergency medicine providers in Texas.

NPI age
6 years
↓ 9 yr below median (15 yr)
State licenses
1 state
17% of peers hold multiple states
Subspecialties
1
In the 43% of peers with subspecialties

NPI lifetime · 2020 → 2026

2020-04Enumerated in NPPES
2020 2026

Where they practice

Practice location
231 S Collins Rd
Sunnyvale, TX 751828224
📞 9728923000
Mailing address
231 S Collins Rd
Sunnyvale, TX 751824624
📞 9728923000

Specialties

  • Emergency Medicine Primary
    An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department....
    TX license #U0088 taxonomy 207P00000X
  • Student in an Organized Health Care Education/Training Program
    An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
    taxonomy 390200000X

Practice context

Part of a multi-provider practice. 22 other active providers share this practice address in NPPES.

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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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