DR. CAITLIN E DWYER MD
NPI 1629411301
Emergency Medicine in Biddeford, ME
About Dr. Caitlin E Dwyer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CAITLIN E DWYER MD (NPI 1629411301) is an individual emergency medicine provider in Biddeford, Maine, licensed in Maine (MD20403) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS, is affiliated with Portsmouth Regional Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
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. Caitlin E Dwyer 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
6Medicare enrollment records show Caitlin Dwyer reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Biddeford, ME 04005
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
York, ME 03909
- Reassigned Medicare billing, Maine enrollment
- 347 clinicians in this Medicare group
Brunswick, ME 04011
- Reassigned Medicare billing, Maine enrollment
- 170 clinicians in this Medicare group
Derry, NH 03038
- Reassigned Medicare billing, New Hampshire enrollment
- 145 clinicians in this Medicare group
Derry, NH 03038
- Reassigned Medicare billing, New Hampshire enrollment
- 150 clinicians in this Medicare group
Ellsworth, ME 04605
- Reassigned Medicare billing, Maine enrollment
- 167 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 4
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Portsmouth Regional Hospital
Acute Care Hospitals · Portsmouth, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04005 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.
BIDDEFORD, ME 04005
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 Caitlin Dwyer's NPI number?
The NPI number for Caitlin Dwyer is 1629411301. It was assigned to this individual provider in the NPPES registry on April 11, 2013.
Where is Caitlin Dwyer located?
Caitlin Dwyer practices at 1 Medical Center Dr, Biddeford, ME 04005. The listed phone number is (207) 283-7000.
What is Caitlin Dwyer's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Caitlin Dwyer enrolled in Medicare?
Yes. Caitlin Dwyer 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 Caitlin Dwyer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Caitlin Dwyer reassigns Medicare benefits to 6 organizations: Mainehealth (Biddeford, ME), York Hospital (York, ME), Bluewater Emergency Partners Of Brunswick, LLC (Brunswick, ME), Emergency Medicine Services Of Nh, LLC (Derry, NH), Hospital Medicine Services Of Nh, LLC (Derry, NH) and 1 more organization, 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 Caitlin Dwyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Caitlin Dwyer accept?
Health plans from Taro Health and WellSense Health Plan list Caitlin Dwyer 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 Caitlin Dwyer affiliated with any hospitals?
According to CMS data, Caitlin Dwyer is affiliated with Portsmouth Regional Hospital.
When was this NPI record last updated?
The NPPES record for Caitlin Dwyer was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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. Caitlin E Dwyer, MD · NPI 1629411301
Emergency Medicine physician in Biddeford, Maine. Individual provider, active in the CMS NPPES registry since April 11, 2013.
## Identity
- **NPI:** 1629411301 (Entity type: Individual)
- **Enumerated:** April 11, 2013
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD20403 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 MEDICAL CENTER DR, Biddeford, ME 04005-9422
- **Phone:** (207) 283-7000
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Mainehealth (NPI 1215417019, Biddeford, ME); York Hospital (NPI 1376528398, York, ME); Bluewater Emergency Partners Of Brunswick, LLC (NPI 1043640204, Brunswick, ME); Emergency Medicine Services Of Nh, LLC (NPI 1386341444, Derry, NH); Hospital Medicine Services Of Nh, LLC (NPI 1548967607, Derry, NH); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 2009
## Record status
- **NPPES last updated:** April 17, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1629411301) · Data from the CMS NPPES public registry.