DR. MARC DUANE CHRISTENSEN (MD, PHD, PA) – Specialist, NPI 1396747218
Specialist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
25 NEUROSURGERY in ME
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Provider Addresses for DR. MARC DUANE CHRISTENSEN (MD, PHD, PA)
99, Campus Avenue, Lewiston, Androscoggin County, Maine, 04240, United States
SUITE 303
LEWISTON, ME 042406045
Phone: (207) 777-4460
Fax: (207) 777-4466
Type: Location
60 Fenwood Rd
Boston, MA 021156128
Phone: (207) 240-0645
Fax: (617) 713-3050
Type: Location
60 FENWOOD RD
BOSTON, MA 021156128
Phone: (207) 240-0645
Fax: (617) 713-3050
Type: Mailing
72 LAKE HAVASU AVE S STE 102
LAKE HAVASU CITY, AZ 864030857
Phone: (928) 453-2211
Fax: (928) 453-2213
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 30 Open Payments records for all available years, with a total value of $5,462.
Total Amount is formed as General ($5,462) + Research ($0) + Ownership ($0) = $5,462.
Last reported payment date: 2024-06-04 • Largest payer in this snapshot: Stryker Corporation ($5,316).
Total Amount
$5,462
General + Research + Ownership
Payments
30
Total payment records
General Amount
$5,462
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Stryker Corporation | $5,316 |
| Life Spine, Inc. | $146 |
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: 2026-02-27
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 |
|---|---|---|---|---|
| I20211026000990 | I | Neurosurgery | MA | TBD |
| I20260227000830 | I | Neurosurgery | AZ | 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 | 29 | 21 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 17 | 17 | $0 |
Insurance plans in this area (ZIP 04240)
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