PETER A MERKEL (MD, MPH) – Rheumatology Physician, NPI 1437136173
Rheumatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
404 RHEUMATOLOGY in PA
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Provider Addresses for PETER A MERKEL (MD, MPH)
Radnor Road, Colonial Village, King of Prussia, Upper Merion Township, Montgomery County, Pennsylvania, 19097, United States
RADNOR, PA 190875220
Phone: (610) 902-5700
Fax: (617) 414-6031
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 89 Open Payments records for all available years, with a total value of $205,003.
Total Amount is formed as General ($199,474) + Research ($5,529) + Ownership ($0) = $205,003.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: NS Pharma, Inc. ($52,554).
Total Amount
$205,003
General + Research + Ownership
Payments
89
Total payment records
General Amount
$199,474
General payments
Research Amount
$5,529
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| NS Pharma, Inc. | $52,554 |
| AstraZeneca UK Limited | $35,376 |
| AstraZeneca Pharmaceuticals LP | $33,275 |
| Alexion Pharmaceuticals, Inc. | $12,733 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | $11,832 |
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: 2019-03-14
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 |
|---|---|---|---|---|
| I20120123000561 | I | Rheumatology | PA | TBD |
| I20190314001556 | I | Rheumatology | NJ | 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 | 35 | 26 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 20 | 18 | $0 |
Insurance plans in this area (ZIP 19087)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| Pulmonary Disease | PA | |
| Critical Care (Intensivists), Internal Medicine, Pulmonary Disease | PA | |
| Nurse Practitioner | PA | |
| - | PA | |
| - | PA | |
| Emergency Medicine | PA | |
| Nurse Practitioner | PA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | PA | |
| Nurse Practitioner | PA |
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