MRS. MELISSA JOHNSON ANTONIK (M.D.) – Endocrinology, Diabetes & Metabolism Physician, NPI 1316025372
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
244 ENDOCRINOLOGY in VA
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Provider Addresses for MRS. MELISSA JOHNSON ANTONIK (M.D.)
Hamaker Court, Merrifield, Fairfax County, Virginia, United States
FAIRFAX, VA 220312220
Phone: (703) 849-8440
Fax: (703) 849-0032
Type: Location
19500 SANDRIDGE WAY STE 180
LEESBURG, VA 201763692
Phone: (703) 673-0171
Fax: (703) 673-0178
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $67.
Total Amount is formed as General ($67) + Research ($0) + Ownership ($0) = $67.
Last reported payment date: 2024-03-11 • Largest payer in this snapshot: Insulet Corporation ($24).
Total Amount
$67
General + Research + Ownership
Payments
3
Total payment records
General Amount
$67
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Insulet Corporation | $24 |
| Abbott Laboratories | $24 |
| Medtronic, 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: 2014-06-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20110623000737 | I | Endocrinology | DC | TBD |
| I20140625002126 | I | Endocrinology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 203 | 97 | $0 |
| 83036 | Hemoglobin a1c level | 109 | 61 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 79 | 68 | $0 |
| 95251 | Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 21 | 11 | $0 |
Insurance plans in this area (ZIP 22031)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | VA | |
| - | VA | |
| Internal Medicine, Pulmonary Disease | MD | |
| - | VA | |
| - | MD | |
| - | VA | |
| - | VA | |
| - | MD | |
| Physician Assistant | VA | |
| Physician Assistant | MI |
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