DR. KATHERINE EILEEN MASON (M.D.) – Anesthesiology Physician, NPI 1194819516
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,323 ANESTHESIOLOGY in MA
Provider Addresses for DR. KATHERINE EILEEN MASON (M.D.)
2014 WASHINGTON ST
NEWTON, MA 024621607
Phone: (617) 243-6298
Type: Location
Harrington Hospital, 100, South Street, Globe Village, Southbridge, Worcester County, Massachusetts, 01550, United States
DEPARTMENT OF PAIN MEDICINE, CANCER CENTER
SOUTHBRIDGE, MA 015504051
Phone: (508) 765-9771
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2011-04-04
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 |
|---|---|---|---|---|
| I20110404000196 | I | Anesthesiology | 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 |
|---|---|---|---|---|
| 00811 | Anesthesia for other procedure on large bowel using an endoscope | 44 | 43 | $0 |
| 00731 | Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 35 | 35 | $0 |
| 00812 | Anesthesia for exam of colon using an endoscope | 16 | 16 | $0 |
| 00813 | Anesthesia for procedure on small and large bowel using an endoscope | 16 | 16 | $0 |
| 00910 | Anesthesia for other procedure on urinary system through urethra | 15 | 15 | $0 |
Insurance plans in this area (ZIP 02462)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ANESTHESIOLOGY | MA | 20610 | Aspiration and/or injection of large joint or joint capsule | 26 | 22 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | MA | |
| Certified Registered Nurse Anesthetist (Crna) | RI | |
| A N E S T H E S I O L O G Y | MA | |
| Certified Registered Nurse Anesthetist (Crna) | MA | |
| Certified Registered Nurse Anesthetist (Crna) | MA | |
| A N E S T H E S I O L O G Y | NY | |
| Certified Registered Nurse Anesthetist (Crna) | MA | |
| Certified Registered Nurse Anesthetist (Crna) | ME | |
| A N E S T H E S I O L O G Y | MA | |
| Certified Registered Nurse Anesthetist (Crna) | MA |
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