Khai Chang, MD
NPI 1881665222 · Internal Medicine Physician · Mount Dora, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Khai Chang, MD is a Internal Medicine Physician provider in Mount Dora, FL (NPI 1881665222).
Provider details
- NPI number
- 1881665222
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME75650 (FL)
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
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
10,316 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,062 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 991 | $124 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 878 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 863 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 806 | $13 |
| Ldl Cholesterol Level83721 | 806 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 220 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Simvastatin | 1,459 | 447 |
| Lisinopril | 1,232 | 391 |
| Atorvastatin Calcium | 823 | 262 |
| Metformin Hcl | 794 | 247 |
| Levothyroxine Sodium | 785 | 224 |
| Omeprazole | 641 | 199 |
| Gabapentin | 634 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$490 across 21 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
- 2006-02-01
- Last updated
- 2018-01-11
Frequently asked questions
- What is Khai Chang's NPI number?
- Khai Chang's National Provider Identifier (NPI) is 1881665222, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Khai Chang's specialty?
- Khai Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Khai Chang located?
- Khai Chang's practice location on file with NPPES is 18550 US Highway 441, Mount Dora, FL 32757-6725.
- What is Khai Chang's phone number?
- The practice phone number listed in the NPPES registry for Khai Chang is (352) 735-3755.
- Does Khai Chang accept Medicare?
- Khai Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Khai Chang's NPI active?
- Yes — Khai Chang's NPI (1881665222) is active in the NPPES registry as of the last update on 2018-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.