MARGARET MACGREGOR (M.D.) – Neurological Surgery Physician, NPI 1679665541
Neurological Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
609 NEUROLOGY in TN
Provider Addresses for MARGARET MACGREGOR (M.D.)
5651 FRIST BLVD STE 415
HERMITAGE, TN 370762058
Phone: (615) 467-4633
Fax: (615) 884-0009
Type: Location
3024 BUSINESS PARK CIR
GOODLETTSVILLE, TN 370723132
Phone: (615) 239-2018
Type: Mailing
1025, South 6th Street, South Town, Springfield, Sangamon County, Illinois, 62703, United States
SPRINGFIELD, IL 627032403
Phone: (217) 528-7541
Type: Mailing
800, North 1st Street, Springfield, Sangamon County, Illinois, 62702, United States
SPRINGFIELD, IL 62702
Phone: (217) 528-7541
Type: Location
302 OLD LEBANON DIRT RD STE 200
HERMITAGE, TN 370762391
Phone: (615) 467-4633
Fax: (615) 884-0009
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 54 Open Payments records for all available years, with a total value of $6,582.
Total Amount is formed as General ($6,582) + Research ($0) + Ownership ($0) = $6,582.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: Globus Medical, Inc. ($2,720).
Total Amount
$6,582
General + Research + Ownership
Payments
54
Total payment records
General Amount
$6,582
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Globus Medical, Inc. | $2,720 |
| Cerapedics Inc. | $2,643 |
| SI-BONE, INC. | $543 |
| ZIMVIE INC. | $191 |
| OsteoCentric Technologies, Inc. | $180 |
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: 2026-02-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 6 Medicare enrollment records; no due dates published yet.
Enrollment records
6
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 |
|---|---|---|---|---|
| I20170411000332 | I | Neurosurgery | KY | TBD |
| I20170421001970 | I | Neurosurgery | TN | TBD |
| I20221012001360 | I | Neurosurgery | AL | TBD |
| I20240628001552 | I | Neurology | SC | TBD |
| I20250122003048 | I | Neurosurgery | VA | TBD |
| I20260225001651 | I | Neurosurgery | MI | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 66 | 47 | $0 |
| 22853 | Insertion of cage or mesh device to spine bone and disc space during spine fusion | 26 | 14 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 25 | 22 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 15 | 11 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 14 | 13 | $0 |
Insurance plans in this area (ZIP 37076)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine, Cardiovascular Disease (Cardiology) | VA | |
| Thoracic Surgery, Cardiac Surgery | MI | |
| N E U R O L O G Y | MI | |
| Physical Medicine And Rehabilitation | MI | |
| Hospitalist, Internal Medicine | MI | |
| - | MI | |
| P S Y C H I A T R Y | OH | |
| Internal Medicine, Geriatric Medicine | MI | |
| Sleep Medicine, Critical Care (Intensivists), Pulmonary Disease | MI | |
| Physician Assistant | MI |
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