DR. MARK D COUSINEAU MD
NPI 1477634335
Emergency Medicine in Portland, ME
About Dr. Mark D Cousineau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK D COUSINEAU MD (NPI 1477634335) is an individual emergency medicine provider in Portland, Maine, licensed in Maine (EC-05-081) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Central Carolina Hospital, and is a graduate of Other (2002).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
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. Mark D Cousineau Md 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
9Medicare enrollment records show Mark Cousineau reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Beckley, WV 25801
- Reassigned Medicare billing, West Virginia enrollment
- 183 clinicians in this Medicare group
Maysville, KY 41056
- Reassigned Medicare billing, Arkansas, Kentucky, North Carolina and Tennessee enrollments
- 310 clinicians in this Medicare group
Paris, KY 40361
- Reassigned Medicare billing, Kentucky enrollment
- 1,441 clinicians in this Medicare group
Newport, TN 37821
- Reassigned Medicare billing, Georgia, North Carolina, Tennessee and Virginia enrollments
- 330 clinicians in this Medicare group
La Grange, KY 40031
- Reassigned Medicare billing, Kentucky enrollment
- 77 clinicians in this Medicare group
Vidalia, GA 30474
- Reassigned Medicare billing, Georgia enrollment
- 98 clinicians in this Medicare group
Columbus, GA 31904
- Reassigned Medicare billing, Georgia enrollment
- 200 clinicians in this Medicare group
Dyersburg, TN 38024
- Reassigned Medicare billing, Tennessee enrollment
- 256 clinicians in this Medicare group
- Reassigned Medicare billing, West Virginia enrollment
- 207 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.
Central Carolina Hospital
Acute Care Hospitals · Sanford, NCWilson Medical Center
Acute Care Hospitals · Wilson, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORTLAND, ME 04102
PORTLAND, ME 04102
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 Mark Cousineau's NPI number?
The NPI number for Mark Cousineau is 1477634335. It was assigned to this individual provider in the NPPES registry on October 18, 2006.
Where is Mark Cousineau located?
Mark Cousineau practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (207) 662-7050.
What is Mark Cousineau's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Cousineau enrolled in Medicare?
Yes. Mark Cousineau 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 Mark Cousineau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Cousineau reassigns Medicare benefits to 9 organizations: Health Care Alliance, Inc. (Beckley, WV), Southeastern Emergency Physicians LLC (Maysville, KY), Baptist Health Medical Group Inc (Paris, KY), Emergency Coverage, LLC (Newport, TN), Oldham County Emergency Physicians, LLC (La Grange, KY) and 4 more organizations, listed in the Medicare section above. 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 Mark Cousineau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Cousineau accept?
Health plans from Arkansas Blue Cross and Blue Shield, Health Advantage, Octave, Oscar Health and Oscar Health Maintenance Organization of Florida and 1 other insurer list Mark Cousineau as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mark Cousineau affiliated with any hospitals?
According to CMS data, Mark Cousineau is affiliated with Central Carolina Hospital and Wilson Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Cousineau was last updated on March 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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. Mark D Cousineau, MD · NPI 1477634335
Emergency Medicine physician in Portland, Maine. Individual provider, active in the CMS NPPES registry since October 18, 2006.
## Identity
- **NPI:** 1477634335 (Entity type: Individual)
- **Enumerated:** October 18, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** EC-05-081 (Maine)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 22 BRAMHALL ST, Portland, ME 04102-3134
- **Phone:** (207) 662-7050 · **Fax:** (207) 662-7054
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Health Care Alliance, Inc. (NPI 1730128760, Beckley, WV); Southeastern Emergency Physicians LLC (NPI 1356379382, Maysville, KY); Baptist Health Medical Group Inc (NPI 1538865399, Paris, KY); Emergency Coverage, LLC (NPI 1427005008, Newport, TN); Oldham County Emergency Physicians, LLC (NPI 1508726035, La Grange, KY); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2002
## Record status
- **NPPES last updated:** March 9, 2026
- **Other identifiers:** Medicaid 490446404A (GA)
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Source: [NPI Profile](https://npiprofile.com/npi/1477634335) · Data from the CMS NPPES public registry.