HOLLY S MASON (M.D.) – Surgery Physician, NPI 1033201462
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
89 SURGICAL ONCOLOGY in MA
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Provider Addresses for HOLLY S MASON (M.D.)
280, Chestnut Street, Metro Center, Springfield, Hampden County, Massachusetts, 01103, United States
2ND FLOOR
SPRINGFIELD, MA 011991001
Phone: (413) 794-5700
Type: Mailing
100, Wason Avenue, Brightwood, Springfield, Hampden County, Massachusetts, 01107, United States
SPRINGFIELD, MA 011071179
Phone: (413) 794-5265
Fax: (413) 794-1794
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $98.
Total Amount is formed as General ($98) + Research ($0) + Ownership ($0) = $98.
Last reported payment date: 2024-11-05 • Largest payer in this snapshot: Janssen Biotech, Inc. ($76).
Total Amount
$98
General + Research + Ownership
Payments
5
Total payment records
General Amount
$98
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Biotech, Inc. | $76 |
| Kyowa Kirin, Inc. | $22 |
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: 2004-09-13
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 |
|---|---|---|---|---|
| I20040913000176 | I | Surgical Oncology | MA | 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 |
|---|---|---|---|---|
| 19301 | Partial removal of breast | 38 | 35 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 37 | 37 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 36 | 31 | $0 |
| 38900 | Imaging of lymph nodes during surgery | 16 | 16 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 15 | 15 | $0 |
Insurance plans in this area (ZIP 01199)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | MA | |
| Anesthesiology, Pain Management | MA | |
| Physician Assistant | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| Physician Assistant | MA | |
| Physician Assistant | MA |
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