DIEMNGOC T. DANG (MD) – Ophthalmology Physician, NPI 1215927629
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for DIEMNGOC T. DANG (MD)
Cosners Corner Medical Office, 4710, Spotsylvania Parkway, Fredericksburg, Spotsylvania County, Virginia, 22407, United States
SUITE 104
FREDERICKSBURG, VA 224079433
Phone: (540) 741-2733
Type: Location
15500 CHICACOAN DR
WOODBRIDGE, VA 221916109
Phone: (703) 498-8659
Fax: (703) 730-1198
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 10 Open Payments records for all available years, with a total value of $576.
Total Amount is formed as General ($576) + Research ($0) + Ownership ($0) = $576.
Last reported payment date: 2024-10-22 • Largest payer in this snapshot: Mallinckrodt Hospital Products Inc. ($154).
Total Amount
$576
General + Research + Ownership
Payments
10
Total payment records
General Amount
$576
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Mallinckrodt Hospital Products Inc. | $154 |
| Horizon Therapeutics plc | $125 |
| Bausch & Lomb Americas Inc. | $118 |
| Alcon Vision LLC | $72 |
| ABBVIE INC. | $34 |
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: 2005-08-12
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 |
|---|---|---|---|---|
| I20050812000961 | I | Ophthalmology | VA | 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 | 253 | 141 | $0 |
| 92014 | Established patient complete exam of visual system | 225 | 224 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 167 | 146 | $0 |
| 92133 | Imaging of optic nerve | 134 | 128 | $0 |
| 92083 | Exam of visual field with extended testing | 121 | 105 | $0 |
Insurance plans in this area (ZIP 22407)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | VA | |
| O P H T H A L M O L O G Y | WA | |
| O P H T H A L M O L O G Y | MI | |
| O P T O M E T R Y | FL | |
| O P T O M E T R Y | VA |
Reviews
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