Peter Chang, M.D.
NPI 1568451797 · Ophthalmology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Chang, M.D. is a Ophthalmology Physician provider in Houston, TX (NPI 1568451797).
Provider details
- NPI number
- 1568451797
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L8645 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
3,683 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 891 | $131 |
| Exam of Visual Field With Extended Testing92083 | 580 | $64 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 543 | $17 |
| Imaging of Optic Nerve92133 | 452 | $36 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 259 | $93 |
| Established Patient Complete Exam of Visual System92014 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 705 | 229 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 642 | 181 |
| Timolol Maleate | 435 | 132 |
| Brimonidine Tartrate | 290 | 105 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 289 | 93 |
| Prednisolone Acetate | 266 | 140 |
| Bimatoprostbrand: Lumigan | 230 | 80 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$115,138 across 205 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
- 2005-10-20
- Last updated
- 2022-07-21
- Certified
- 2020-11-06
Frequently asked questions
- What is Peter Chang's NPI number?
- Peter Chang's National Provider Identifier (NPI) is 1568451797, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Chang's specialty?
- Peter Chang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Chang located?
- Peter Chang's practice location on file with NPPES is 1977 Butler Blvd, Houston, TX 77030-4101.
- What is Peter Chang's phone number?
- The practice phone number listed in the NPPES registry for Peter Chang is (713) 798-6100.
- Does Peter Chang accept Medicare?
- Peter Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Chang's NPI active?
- Yes — Peter Chang's NPI (1568451797) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.