STEPHEN HOWARD KARSHBAUM (MD) – Diagnostic Radiology Physician, NPI 1124032271
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,897 DIAGNOSTIC RADIOLOGY in MA
Provider Addresses for STEPHEN HOWARD KARSHBAUM (MD)
960 MASSACHUSETTS AVE
FL 2
BOSTON, MA 02118
Phone:
Type: Mailing
235 North Pearl St
Brockton, MA 02301
Phone: (508) 427-2665
Fax: (508) 427-2368
Type: Location
736 Cambridge St
Brighton, MA 02135
Phone: (617) 789-2762
Type: Location
1 ORTHOPEDIC DR
PEABODY, MA 019601668
Phone: (978) 818-6272
Fax: (978) 818-6282
Type: Location
800, West Cummings Park, Walnut Hill, Woburn, Middlesex County, Massachusetts, 01801, United States
SUITE 6475
WOBURN, MA 018016372
Phone: (781) 569-6541
Fax: (781) 569-6557
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: 2012-05-10
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 |
|---|---|---|---|---|
| I20040616000492 | I | Diagnostic Radiology | MA | TBD |
| I20120510000232 | I | Diagnostic Radiology | RI | 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 |
|---|---|---|---|---|
| A9575 | Injection, gadoterate meglumine, 0.1 ml | 24,055 | 134 | $0 |
| A9585 | Injection, gadobutrol, 0.1 ml | 1,228 | 16 | $0 |
| 70450 | Ct scan head or brain without contrast | 777 | 742 | $0 |
| 72125 | Ct scan of upper spine without contrast | 323 | 313 | $0 |
| 70551 | Mri scan of brain without contrast | 154 | 152 | $0 |
Insurance plans in this area (ZIP 02118)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology, Interventional Radiology | CT | |
| - | CT | |
| Diagnostic Radiology | MA | |
| Diagnostic Radiology | MA | |
| Diagnostic Radiology | MA | |
| Diagnostic Radiology | CT | |
| - | MA | |
| - | CT | |
| Diagnostic Radiology | MA | |
| Diagnostic Radiology | CT |
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