DR. BENJAMIN B MASSENBURG (MD) – Emergency Medicine Physician, NPI 1841238532
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
258 EMERGENCY MEDICINE in HI
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Provider Addresses for DR. BENJAMIN B MASSENBURG (MD)
1110, Kau Street, Neighborhood, Lower Kula, Omaopio, Kula, Maui County, Hawaii, 96790, United States
KULA, HI 967909517
Phone: (808) 280-5539
Type: Mailing
Maui Memorial Medical Center, 221, Mahalani Street, Wailuku, Maui County, Hawaii, 96793, United States
WAILUKU, HI 967932526
Phone: (808) 242-2290
Type: Location
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: 2005-09-29
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 |
|---|---|---|---|---|
| I20050929000274 | I | Emergency Medicine | HI | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 12 | 12 | $0 |
Insurance plans in this area (ZIP 96790)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P S Y C H I A T R Y | CA | |
| O P T O M E T R Y | HI | |
| - | HI | |
| Physician Assistant | HI | |
| Emergency Medicine | VA | |
| Orthopedic Surgery | HI | |
| Internal Medicine | HI | |
| Orthopedic Surgery | HI | |
| - | HI | |
| - | CO |
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