DR. CHRISTOPHER JOSEPH MARIANI MD, PHD
NPI 1669901740
Anesthesiology in Saint Paul, MN
About Dr. Christopher Joseph Mariani Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTOPHER JOSEPH MARIANI MD, PHD (NPI 1669901740) is an individual anesthesiology provider in Saint Paul, Minnesota, licensed in Massachusetts (271758) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with Lakeview Memorial Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Christopher Joseph Mariani Md, Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Christopher Mariani reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Paul, MN 55101
- Reassigned Medicare billing, Minnesota enrollment
- 119 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lakeview Memorial Hospital
Acute Care Hospitals · Stillwater, MNRegions Hospital
Acute Care Hospitals · Saint Paul, MNOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT PAUL, MN 55101
ST PAUL, MN 55101
ST PAUL, MN 55101
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Christopher Mariani's NPI number?
The NPI number for Christopher Mariani is 1669901740. It was assigned to this individual provider in the NPPES registry on June 12, 2017.
Where is Christopher Mariani located?
Christopher Mariani practices at 640 Jackson St, Saint Paul, MN 55101. The listed phone number is (651) 254-0043.
What is Christopher Mariani's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Christopher Mariani enrolled in Medicare?
Yes. Christopher Mariani is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Christopher Mariani's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Mariani reassigns Medicare benefits to 3 organizations: Twin Cities Anesthesia Associates PC (Saint Paul, MN), Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Christopher Mariani's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Christopher Mariani affiliated with any hospitals?
According to CMS data, Christopher Mariani is affiliated with Lakeview Memorial Hospital and Regions Hospital.
When was this NPI record last updated?
The NPPES record for Christopher Mariani was last updated on July 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Christopher Joseph Mariani, MD, PHD · NPI 1669901740
Anesthesiology physician in Saint Paul, Minnesota. Individual provider, active in the CMS NPPES registry since June 12, 2017.
## Identity
- **NPI:** 1669901740 (Entity type: Individual)
- **Enumerated:** June 12, 2017
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 271758 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 640 JACKSON ST, Saint Paul, MN 55101-2502
- **Phone:** (651) 254-0043
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Twin Cities Anesthesia Associates PC (NPI 1982125456, Saint Paul, MN); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Chicago, Pritzker School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** July 6, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1669901740) · Data from the CMS NPPES public registry.