Active NPI
Marc Duane Christensen, MD, PHD, PA
- Neurological Surgery Physician
- Lake Havasu City, AZ
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Neurological Surgery Physician
- License
- 73109
- Practice address
- 72 Lake Havasu Ave S Ste 102
Lake Havasu City, AZ 86403-0857 - Phone
- (928) 453-2211
- Fax
- (928) 453-2213
- NPI assigned
- Aug 11, 2005
- Last updated
- Dec 8, 2025
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Neurological Surgery Physician | 207T00000X | 284220 | MA | |
| Neurological Surgery Physician | 207T00000X | 73109 | AZ | Primary |
Addresses
Primary practice location
72 Lake Havasu Ave S Ste 102
Lake Havasu City, AZ 86403-0857
Mailing address
72 Lake Havasu Ave S Ste 102
Lake Havasu City, AZ 86403-0857
Phone (928) 453-2211
Other practice location 1
60 Fenwood Rd
Boston, MA 02115-6128
Phone (207) 240-0645
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA, AZ
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Neurosurgery
- Education
- University of Texas Medical School at Houston, 1993
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
72 Lake Havasu Ave S
Suite 102
Lake Havasu City, AZ 86403-0857
Phone (928) 453-2211
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- HHS exclusion list flag
- CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found.
- Credentials
- Doctor of Medicine, Physician Assistant, Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 73109 | AZ | MD | Neurological Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Brigham & Womens Physicians Organization Inc | Neurological Surgery | Current | Accepting new patients |
| Panacea Brain and Spine, LLC | Neurological Surgery | Current | Accepting new patients |
| Vna Care Network, Inc. | Past | Accepting new patients |
Locations
72 Lake Havasu Ave S
Ste 102
Lk Havasu Cty, AZ 86403
Phone (928) 453-2211
1200 W Mohave Rd
Parker, AZ 85344
Phone (928) 669-7300
60 Fenwood Rd
Boston, MA 02115
Phone (617) 732-5056
75 Francis St
Boston, MA 02115
254 2nd Ave
Needham Heights, MA 02494
Phone (781) 416-8414
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Neurological Surgery Physician
- Lake Havasu City, AZ
- NPI 1457622763
-
- Internal Medicine Physician
- Boston, MA
- NPI 1033535497
Neurological Surgery
-
- Home Health Agency
- Worcester, MA
- NPI 1922002286
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1123718400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1765152000000",
"number": "1396747218",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "72 LAKE HAVASU AVE S STE 102",
"city": "LAKE HAVASU CITY",
"state": "AZ",
"postal_code": "864030857",
"telephone_number": "928-453-2211",
"fax_number": "928-453-2213"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "72 LAKE HAVASU AVE S STE 102",
"city": "LAKE HAVASU CITY",
"state": "AZ",
"postal_code": "864030857",
"telephone_number": "928-453-2211",
"fax_number": "928-453-2213"
}
],
"practiceLocations": [
{
"address_1": "60 Fenwood Rd",
"address_purpose": "LOCATION",
"city": "Boston",
"state": "MA",
"postal_code": "021156128",
"country_code": "US",
"telephone_number": "207-240-0645",
"fax_number": "617-713-3050",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CHRISTENSEN",
"first_name": "MARC",
"middle_name": "DUANE",
"name_prefix": "Dr.",
"credential": "MD, PHD, PA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-08-11",
"last_updated": "2025-12-08",
"certification_date": "2025-12-08",
"status": "A"
},
"taxonomies": [
{
"code": "207T00000X",
"taxonomy_group": "",
"desc": "Neurological Surgery",
"state": "MA",
"license": "284220",
"primary": false
},
{
"code": "207T00000X",
"taxonomy_group": "",
"desc": "Neurological Surgery",
"state": "AZ",
"license": "73109",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Lake Havasu City, AZ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 8, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.