DR. PAUL S. CHANG (D.O.) – Orthopaedic Surgery Physician, NPI 1285639740
Orthopaedic Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
947 ORTHOPEDIC SURGERY in MA
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Provider Addresses for DR. PAUL S. CHANG (D.O.)
21, Highland Avenue, Newburyport, Essex County, Massachusetts, 01950, United States
SUITE 16
NEWBURYPORT, MA 019503872
Phone: (978) 462-7555
Fax: (978) 462-9049
Type: Mailing
Highland Avenue, Newburyport, Essex County, Massachusetts, 01950, United States
SUITE 16
NEWBURYPORT, MA 019503872
Phone: (978) 462-7555
Fax: (978) 462-9049
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 9 Open Payments records for all available years, with a total value of $218.
Total Amount is formed as General ($218) + Research ($0) + Ownership ($0) = $218.
Last reported payment date: 2024-09-25 • Largest payer in this snapshot: Stryker Corporation ($62).
Total Amount
$218
General + Research + Ownership
Payments
9
Total payment records
General Amount
$218
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-25
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Stryker Corporation | $62 |
| Next Science LLC | $29 |
| ACUMED LLC | $29 |
| Heron Therapeutics, Inc. | $27 |
| Ferring Pharmaceuticals Inc. | $19 |
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: 2010-12-20
PECOS data refreshed: 2026-05-27
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 |
|---|---|---|---|---|
| I20101220000775 | I | Orthopedic Surgery | MA | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 333 | 185 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 234 | 171 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 103 | 103 | $0 |
| 73562 | X-ray of knee, 3 views | 93 | 72 | $0 |
| 20610 | Aspiration and/or injection of fluid from large joint | 64 | 46 | $0 |
Insurance plans in this area (ZIP 01950)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ORTHOPEDIC SURGERY | MA | 73562 | X-ray of knee, 3 views | 73 | 64 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | TX | |
| Orthopedic Surgery | MA | |
| Orthopedic Surgery | MA | |
| Orthopedic Surgery | MA | |
| Physician Assistant | MA | |
| - | MA | |
| Physician Assistant | MA | |
| Orthopedic Surgery | MA |
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