Charlotte Chang, MD
NPI 1578083515 · Internal Medicine Physician · Columbia, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlotte Chang, MD is a Internal Medicine Physician provider in Columbia, MO (NPI 1578083515).
Provider details
- NPI number
- 1578083515
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2020008238 (MO)
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
8 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
846 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 | 273 | $118 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 264 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 81 | $83 |
| Hemoglobin A1c Level83036 | 75 | $10 |
| Administration of Influenza Virus VaccineG0008 | 44 | $30 |
| Administration of Pneumococcal VaccineG0009 | 34 | $30 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 141 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 668 | 180 |
| Atorvastatin Calcium | 416 | 140 |
| Rosuvastatin Calcium | 376 | 113 |
| Amlodipine Besylate | 337 | 99 |
| Lisinopril | 303 | 91 |
| Omeprazole | 282 | 83 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (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
- 2017-06-21
- Last updated
- 2021-08-17
- Certified
- 2020-08-25
Frequently asked questions
- What is Charlotte Chang's NPI number?
- Charlotte Chang's National Provider Identifier (NPI) is 1578083515, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlotte Chang's specialty?
- Charlotte Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charlotte Chang located?
- Charlotte Chang's practice location on file with NPPES is 900 W Nifong Blvd Ste 101, Columbia, MO 65203-4469.
- What is Charlotte Chang's phone number?
- The practice phone number listed in the NPPES registry for Charlotte Chang is (573) 499-9009.
- Does Charlotte Chang accept Medicare?
- Charlotte Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlotte Chang's NPI active?
- Yes — Charlotte Chang's NPI (1578083515) is active in the NPPES registry as of the last update on 2021-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.