MARK KOSHAR (M.D.) – Internal Medicine Physician, NPI 1538161963
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
9,962 INTERNAL MEDICINE in PA
Provider Addresses for MARK KOSHAR (M.D.)
American Box and Recycling, Philadelphia, Philadelphia County, Pennsylvania, United States
PHILADELPHIA, PA 191783311
Phone: (484) 884-4500
Fax: (484) 884-0699
Type: Mailing
3735 NAZARETH RD
SUITE 301
EASTON, PA 180458338
Phone: (610) 829-2200
Fax: (610) 829-2211
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $308.
Total Amount is formed as General ($308) + Research ($0) + Ownership ($0) = $308.
Last reported payment date: 2024-03-27 • Largest payer in this snapshot: Amgen Inc. ($220).
Total Amount
$308
General + Research + Ownership
Payments
8
Total payment records
General Amount
$308
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $220 |
| Lilly USA, LLC | $89 |
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: 2007-04-04
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 |
|---|---|---|---|---|
| I20070404000179 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 4,680 | 48 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 671 | 365 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 358 | 358 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 322 | 218 | $0 |
| G0008 | Administration of influenza virus vaccine | 266 | 260 | $0 |
Insurance plans in this area (ZIP 19178)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| H O S P I T A L I S T | PA | |
| - | PA | |
| - | PA | |
| Internal Medicine | PA | |
| Family Practice | PA | |
| A N E S T H E S I O L O G Y | PA | |
| - | PA | |
| - | PA | |
| Orthopedic Surgery | PA |
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