MARGARET Y. CHANG (M.D.) – Family Medicine Physician, NPI 1770522476
Family Medicine Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for MARGARET Y. CHANG (M.D.)
1151 HIDDENBROOK LN
SUWANEE, GA 300244602
Phone: (240) 606-5301
Type: Mailing
88 JOHNSON RD
LAWRENCEVILLE, GA 300465520
Phone: (678) 242-9102
Type: Mailing
Fenton Street, North Takoma Park, Silver Spring, Montgomery County, Maryland, 20910, United States
SILVER SPRING, MD 209103808
Phone: (301) 585-1250
Fax: (301) 585-6289
Type: Location
Fenton Street, Queen Annes, Montgomery Hills, Silver Spring, Montgomery County, Maryland, 20910, United States
SILVER SPRING, MD 209103806
Phone: (240) 499-2615
Type: Mailing
88 JOHNSON RD BLDG 2
LAWRENCEVILLE, GA 300465520
Phone: (404) 369-1907
Fax: (404) 369-1970
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $70.
Total Amount is formed as General ($70) + Research ($0) + Ownership ($0) = $70.
Last reported payment date: 2023-10-05 • Largest payer in this snapshot: Cleerly, Inc. ($70).
Total Amount
$70
General + Research + Ownership
Payments
1
Total payment records
General Amount
$70
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Cleerly, Inc. | $70 |
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: 2021-10-07
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 |
|---|---|---|---|---|
| I20211007000012 | I | Family Practice | GA | 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 |
|---|---|---|---|---|
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 111 | 102 | $0 |
| 99315 | Nursing facility discharge day management, 30 minutes or less | 55 | 53 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 44 | 37 | $0 |
Insurance plans in this area (ZIP 30024)
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