DR. JUSTIN LEE MASSENGALE (M.D.) – Neurological Surgery Physician, NPI 1003096736
Neurological Surgery Physician
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Profile Insights
NPPES metrics only — not quality of care.
223 NEUROSURGERY in MA
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Provider Addresses for DR. JUSTIN LEE MASSENGALE (M.D.)
Doctors Office Building, 720, Harrison Avenue, South End, Boston, Suffolk County, Massachusetts, 02118, United States
DOB 503
BOSTON, MA 021182371
Phone:
Type: Mailing
Shapiro Center, 725, Albany Street, South End, Boston, Suffolk County, Massachusetts, 02118, United States
SHAPIRO 7, SUITE C
BOSTON, MA 021182526
Phone: (617) 638-8992
Fax: (617) 638-8979
Type: Location
7300 N FRESNO ST
FRESNO, CA 937202941
Phone: (559) 448-4000
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 18 Open Payments records for all available years, with a total value of $1,437.
Total Amount is formed as General ($1,437) + Research ($0) + Ownership ($0) = $1,437.
Last reported payment date: 2024-06-18 • Largest payer in this snapshot: Relievant Medsystems, Inc. ($749).
Total Amount
$1,437
General + Research + Ownership
Payments
18
Total payment records
General Amount
$1,437
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Relievant Medsystems, Inc. | $749 |
| Acuity Surgical Devices, LLC | $226 |
| SI-BONE, INC. | $177 |
| Boston Scientific Corporation | $145 |
| OssDsign Incorporated | $56 |
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: 2025-03-14
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 |
|---|---|---|---|---|
| I20090910000316 | I | Neurosurgery | MA | TBD |
| I20250314001140 | I | Neurosurgery | CA | 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 | 88 | 56 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 77 | 60 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 50 | 34 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 48 | 36 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 46 | 46 | $0 |
Insurance plans in this area (ZIP 02118)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEUROSURGERY | MA | 22842 | Insertion of posterior spinal instrumentation for spinal stabilization, 3 to 6 vertebral segments | 12 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | DC | |
| Colorectal Surgery (Proctology), General Surgery | LA | |
| - | CA | |
| Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Emergency Medicine | CA | |
| - | MA | |
| Emergency Medicine | CA | |
| - | CA |
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