DR. CARL J. CHANG (M.D.) – Dermatology Physician, NPI 1891983078
Dermatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,141 DERMATOLOGY in CA
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Provider Addresses for DR. CARL J. CHANG (M.D.)
PO BOX 1938
ARCADIA, CA 910771938
Phone: (626) 821-5998
Fax: (626) 821-5990
Type: Mailing
100, North Santa Anita Avenue, Arcadia, Los Angeles County, California, 91006, United States
ARCADIA, CA 910063108
Phone: (626) 821-5998
Fax: (626) 821-5990
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 18 Open Payments records for all available years, with a total value of $666.
Total Amount is formed as General ($666) + Research ($0) + Ownership ($0) = $666.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Incyte Corporation ($155).
Total Amount
$666
General + Research + Ownership
Payments
18
Total payment records
General Amount
$666
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Incyte Corporation | $155 |
| UCB, Inc. | $122 |
| Janssen Biotech, Inc. | $99 |
| GENZYME CORPORATION | $93 |
| ABBVIE INC. | $83 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2011-05-27
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20110527000460 | I | Dermatology | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 17003 | Destruction of precancer skin growth, 2-14 growths | 765 | 98 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 732 | 299 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 227 | 129 | $0 |
| 17110 | Destruction of skin growth, 1-14 growths | 211 | 144 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 146 | 124 | $0 |
Insurance plans in this area (ZIP 91077)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DERMATOLOGY | CA | 17003 | Destruction of 2-14 skin growths | 677 | 69 |
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