DR. JONATHAN CHRISTIAN CALKWOOD (M.D.) – Neurology Physician, NPI 1194765388
Neurology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
640 NEUROLOGY in MN
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Provider Addresses for DR. JONATHAN CHRISTIAN CALKWOOD (M.D.)
4225, Golden Valley Road, Golden Valley, Hennepin County, Minnesota, 55422, United States
GOLDEN VALLEY, MN 554224215
Phone: (763) 588-0661
Fax: (763) 287-2310
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 121 Open Payments records for all available years, with a total value of $128,096.
Total Amount is formed as General ($128,096) + Research ($0) + Ownership ($0) = $128,096.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: TG Therapeutics, Inc. ($43,664).
Total Amount
$128,096
General + Research + Ownership
Payments
121
Total payment records
General Amount
$128,096
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 |
|---|---|
| TG Therapeutics, Inc. | $43,664 |
| Biogen, Inc. | $38,555 |
| Genentech USA, Inc. | $29,375 |
| EMD Serono, Inc. | $16,027 |
| Novartis Pharmaceuticals Corporation | $46 |
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: 2006-02-13
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20060213000558 | I | Neurology | 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 |
|---|---|---|---|---|
| J2350 | Injection, ocrelizumab, 1 mg | 18,300 | 26 | $0 |
| J1568 | Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg | 5,490 | 15 | $0 |
| J1569 | Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg | 5,020 | 19 | $0 |
| J0897 | Injection, denosumab, 1 mg | 1,080 | 17 | $0 |
| 96366 | Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | 202 | 39 | $0 |
Insurance plans in this area (ZIP 55422)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MN | |
| Nurse Practitioner | MN | |
| Nurse Practitioner | NY | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | MN | |
| Nurse Practitioner | MN |
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