DR. GREG A MCGILLIVRAY (DC) – Chiropractor, NPI 1699771337
Chiropractor
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,642 CHIROPRACTIC in MN
Provider Addresses for DR. GREG A MCGILLIVRAY (DC)
215, North Central Avenue, Duluth, Saint Louis County, Minnesota, 55807, United States
DULUTH, MN 558072402
Phone: (218) 628-0646
Fax: (218) 628-1889
Type: Mailing
2222 E 5TH ST
SUPERIOR, WI 548803709
Phone: (715) 392-1955
Fax: (715) 392-1935
Type: Mailing
4602 GRAND AVE STE 1000
DULUTH, MN 558072712
Phone: (218) 336-3520
Fax: (218) 324-6097
Type: Location
2222 E 5th St
Superior, WI 548803709
Phone: (715) 392-1955
Fax: (715) 392-1935
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: 2005-01-10
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 |
|---|---|---|---|---|
| I20050110000704 | I | Chiropractic | MN | 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 |
|---|---|---|---|---|
| 98940 | Chiropractic manipulative treatment, 1-2 spinal regions | 131 | 27 | $0 |
Insurance plans in this area (ZIP 55807)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CHIROPRACTIC | MN | 98940 | Chiropractic manipulative treatment, 1-2 spinal regions | 79 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Clinical Social Worker | MN | |
| C H I R O P R A C T I C | WI | |
| Nurse Practitioner | WI | |
| - | WI | |
| C H I R O P R A C T I C | MN | |
| Physician Assistant | MN | |
| Clinical Social Worker | WI | |
| Family Practice | WI | |
| Family Practice | MN | |
| Physician Assistant | MN |
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