MARGARET M FITZSIMONS (MB.B) – Nephrology Physician, NPI 1720036445
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
738 NEPHROLOGY in PA
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Provider Addresses for MARGARET M FITZSIMONS (MB.B)
PO BOX 858
MC A410
HERSHEY, PA 170330858
Phone: (800) 243-1455
Type: Mailing
Hershey Medical Center, 500, University Drive, Hershey, Dauphin County, Pennsylvania, 17033, United States
HERSHEY, PA 170332360
Phone: (800) 243-1455
Fax: (717) 531-6776
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 $24.
Total Amount is formed as General ($24) + Research ($0) + Ownership ($0) = $24.
Last reported payment date: 2024-08-13 • Largest payer in this snapshot: Vifor Pharma, Inc. ($21).
Total Amount
$24
General + Research + Ownership
Payments
2
Total payment records
General Amount
$24
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Vifor Pharma, Inc. | $21 |
| Travere Therapeutics, Inc. | $3 |
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: 2006-04-10
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 |
|---|---|---|---|---|
| I20060410000501 | I | Nephrology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 191 | 111 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 77 | 15 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 38 | 23 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 36 | 34 | $0 |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | 33 | 14 | $0 |
Insurance plans in this area (ZIP 17033)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | PA | 90935 | Hemodialysis procedure with one physician evaluation | 21 | 14 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | PA | |
| Vascular Surgery | MD | |
| O P H T H A L M O L O G Y | PA | |
| - | PA | |
| Nurse Practitioner | PA | |
| - | FL | |
| - | PA | |
| - | PA | |
| Emergency Medicine | PA | |
| Critical Care (Intensivists) | PA |
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