DR. AMY ZHANG (M.D.) – Rheumatology Physician, NPI 1861811952
Preparing for Medicare enrollment?
Use our CMS-855 prep checklist: which form applies (855I, 855O, or 855A), readiness score, NPPES field map, and Section 12 documents. Reassignment uses CMS-855I Section 4F—not the discontinued CMS-855R form.
Open Medicare 855 Prep tool →Rheumatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
25 RHEUMATOLOGY in DE
Provider Addresses for DR. AMY ZHANG (M.D.)
200 HYGEIA DR STE 2300
NEWARK, DE 197132049
Phone:
Type: Mailing
4735 OGLETOWN STANTON RD STE 2201
NEWARK, DE 197138000
Phone: (302) 623-4390
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 120 Open Payments records for all available years, with a total value of $4,211.
Total Amount is formed as General ($4,211) + Research ($0) + Ownership ($0) = $4,211.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Janssen Biotech, Inc. ($2,347).
Total Amount
$4,211
General + Research + Ownership
Payments
120
Total payment records
General Amount
$4,211
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 |
|---|---|
| Janssen Biotech, Inc. | $2,347 |
| Novartis Pharmaceuticals Corporation | $281 |
| ABBVIE INC. | $240 |
| Genentech USA, Inc. | $152 |
| AstraZeneca Pharmaceuticals LP | $130 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
No Medicare enrollment or revalidation data available for this provider in our database.
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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 294 | 141 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 103 | 60 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 57 | 42 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 34 | 34 | $0 |
Insurance plans in this area (ZIP 19713)
Loading plans...
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.