MR. GREGORY GLAWSON MADDOX (PA-C) – Physician Assistant, NPI 1881662542
Physician Assistant
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Profile Insights
NPPES metrics only — not quality of care.
9,689 PHYSICIAN ASSISTANT in PA
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Provider Addresses for MR. GREGORY GLAWSON MADDOX (PA-C)
Geisinger Medical Center Danville, 100, North Academy Avenue, Danville, Montour County, Pennsylvania, 17822, United States
DANVILLE, PA 178224903
Phone: (570) 271-6144
Fax: (570) 271-6578
Type: Mailing
425, North 21st Street, Camp Hill, Cumberland County, Pennsylvania, 17011, United States
CAMP HILL, PA 170112223
Phone: (717) 972-4250
Fax: (717) 972-4249
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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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: 2020-01-23
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 |
|---|---|---|---|---|
| I20190731003218 | I | Physician Assistant | VA | TBD |
| I20200123002395 | I | Physician Assistant | PA | 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 |
|---|---|---|---|---|
| 17003 | Destruction of precancer skin growth, 2-14 growths | 334 | 72 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 192 | 172 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 120 | 104 | $0 |
| 11102 | Biopsy of related skin growth, first growth | 104 | 98 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 59 | 50 | $0 |
Insurance plans in this area (ZIP 17822)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease, Internal Medicine | PA | |
| Internal Medicine | PA | |
| Internal Medicine, Hospitalist | NY | |
| - | PA | |
| Diagnostic Radiology | PA | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | IL | |
| Cardiovascular Disease (Cardiology), Critical Care (Intensivists) | PA | |
| Physician Assistant | DE | |
| Cardiovascular Disease (Cardiology), Internal Medicine, Interventional Cardiology | PA | |
| Certified Registered Nurse Anesthetist (Crna) | PA |
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