MARK D CLARK (FNP) – Acute Care Nurse Practitioner, NPI 1285631887
Acute Care Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
9,652 NURSE PRACTITIONER in GA
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Provider Addresses for MARK D CLARK (FNP)
PO BOX 658
GAINESVILLE, GA 305030658
Phone: (770) 533-6511
Fax: (770) 533-4786
Type: Mailing
Longstreet Cancer Center, 725, Jesse Jewell Parkway Southeast, Gainesville, Hall County, Georgia, 30501, United States
GAINESVILLE, GA 30501
Phone: (770) 297-5700
Fax: (770) 718-1877
Type: Location
1240 Jesse Jewell Pkwy SE
Gainesville, GA 305013862
Phone: (770) 536-9864
Fax: (770) 297-5023
Type: Location
102 BARRETT ST
GAINESVILLE, GA 305011356
Phone: (770) 540-4274
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 145 Open Payments records for all available years, with a total value of $3,335.
Total Amount is formed as General ($3,335) + Research ($0) + Ownership ($0) = $3,335.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: ABBVIE INC. ($333).
Total Amount
$3,335
General + Research + Ownership
Payments
145
Total payment records
General Amount
$3,335
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $333 |
| Janssen Biotech, Inc. | $295 |
| Celgene Corporation | $172 |
| PFIZER INC. | $139 |
| Regeneron Pharmaceuticals, Inc. | $138 |
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: 2004-09-14
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 |
|---|---|---|---|---|
| I20040914001333 | I | Nurse Practitioner | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 378 | 214 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 19 | 18 | $0 |
Insurance plans in this area (ZIP 30503)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease, Critical Care (Intensivists) | GA | |
| Pulmonary Disease | GA | |
| Nurse Practitioner | GA | |
| Pulmonary Disease | GA | |
| Internal Medicine | GA | |
| Internal Medicine | GA | |
| Internal Medicine | GA | |
| - | GA | |
| Nephrology, Internal Medicine | GA | |
| E N D O C R I N O L O G Y | MS |
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