DR. MARK E. ARMSTRONG (M.D.) – Surgery Physician, NPI 1013981711
Surgery Physician
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Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
2,001 GENERAL SURGERY in PA
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Provider Addresses for DR. MARK E. ARMSTRONG (M.D.)
Geisinger Medical Center Danville, 100, North Academy Avenue, Danville, Montour County, Pennsylvania, 17822, United States
DANVILLE, PA 178223034
Phone: (570) 271-6144
Fax: (570) 271-6578
Type: Mailing
Geisinger Gray's Woods, 132, Abigail Lane, Price's Saw Mill, Port Matilda, Centre County, Pennsylvania, 16870, United States
PORT MATILDA, PA 168707153
Phone: (814) 272-5011
Fax: (814) 272-6531
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $117.
Total Amount is formed as General ($117) + Research ($0) + Ownership ($0) = $117.
Last reported payment date: 2024-09-17 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($99).
Total Amount
$117
General + Research + Ownership
Payments
2
Total payment records
General Amount
$117
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $99 |
| Ethicon US, LLC | $18 |
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: 2007-12-21
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20071221000102 | I | General Surgery | 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 |
|---|---|---|---|---|
| 45380 | Biopsy of large bowel using a flexible endoscope | 19 | 19 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 18 | 14 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 16 | 16 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 16 | 15 | $0 |
Insurance plans in this area (ZIP 17822)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| Internal Medicine | PA | |
| Diagnostic Radiology | NJ | |
| - | PA | |
| Diagnostic Radiology | PA | |
| - | PA | |
| - | PA | |
| A N E S T H E S I O L O G Y | PA | |
| Diagnostic Radiology | PA | |
| Diagnostic Radiology | MD |
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