Quick answers
- Does Myung W. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Myung W. Chang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Myung W. Chang see?
- In 2024, CMS data shows 123 Original Medicare patients and 205 services for Myung W. Chang. This counts Original Medicare only and measures volume, not quality.
- What is Myung W. Chang's NPI number?
- 1356559876. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Myung W. Chang, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 123 |
|---|---|
| Services billed to Medicare | 205 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)111 services
- Preparation of permanent prosthesis to close mouth opening (21080)22 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)22 services
- Impression and custom preparation of lower jaw bone prosthesis (21081)16 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)15 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol72%
- High blood pressure67%
- Arthritis34%
- Diabetes25%
- Anxiety23%
- Ischemic heart disease22%
Hospitals where Myung W. Chang works
Medicare's Facility Affiliation Data lists Myung W. Chang at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390111
- Pennsylvania HospitalPhiladelphia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390226
Practice locations
Addresses where Myung W. Chang is enrolled with Medicare (CMS data updated October 2, 2026).
- 3400 Civic Ctr Blvd 4th Floor S, Oral/maxill Surgery PcamPhiladelphia, PA 19104 (215) 662‑3580
Group practices
Medicare enrollment lists Myung W. Chang as a member of this group (CMS data updated October 2, 2026).
- University of Penn - Medical Group3,505 clinicians in the group
Specialties
- Maxillofacial Surgeryprimary
- Oral Surgeryalso
Find other clinicians: Maxillofacial Surgery, Pennsylvania →
Other maxillofacial surgeons in Philadelphia
Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.
Other clinicians in University of Penn - Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DDS |
|---|---|
| Dental school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1993 (33 years since dental school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356559876 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians