Yoon Jeong Chang, M.D.
NPI 1386859163 · Obstetrics & Gynecology Physician · Austell, GA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yoon Jeong Chang, M.D. is a Obstetrics & Gynecology Physician provider in Austell, GA (NPI 1386859163).
Provider details
- NPI number
- 1386859163
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 59615 (GA)
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
19 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
218 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) |
|---|---|---|
| Blood Count, Hemoglobin85018 | 49 | $2 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 40 | $40 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $130 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 28 | $117 |
| Automated Urinalysis Test81003 | 23 | $2 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 16 | $45 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 94 | 58 |
| Valacyclovir Hclbrand: Valacyclovir | 65 | 32 |
| Fluconazole | 52 | 49 |
| Estradiolbrand: Estradiol (twice Weekly) | 48 | 19 |
| Metronidazole | 48 | 46 |
| Clotrimazole/Betamethasone Dipbrand: Clotrimazole-Betamethasone | 36 | 29 |
| Terconazole | 27 | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$559 across 18 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
- 2007-05-14
- Last updated
- 2011-06-30
Frequently asked questions
- What is Yoon Jeong Chang's NPI number?
- Yoon Jeong Chang's National Provider Identifier (NPI) is 1386859163, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yoon Jeong Chang's specialty?
- Yoon Jeong Chang is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Yoon Jeong Chang located?
- Yoon Jeong Chang's practice location on file with NPPES is 1791 Mulkey Rd, Austell, GA 30106-1124.
- What is Yoon Jeong Chang's phone number?
- The practice phone number listed in the NPPES registry for Yoon Jeong Chang is (770) 732-5400.
- Does Yoon Jeong Chang accept Medicare?
- Yoon Jeong Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yoon Jeong Chang's NPI active?
- Yes — Yoon Jeong Chang's NPI (1386859163) is active in the NPPES registry as of the last update on 2011-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.