Dr Caitlin E Dwyer, MD - Medicare Emergency Medicine in Portsmouth, NH

Dr Caitlin E Dwyer, MD is a medicare enrolled "Emergency Medicine" physician in Portsmouth, New Hampshire. She went to New York Medical College and graduated in 2009 and has 15 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Emergency Medicine Services Of Nh, Llc and her current practice location is 333 Borthwick Ave Ste 100, Portsmouth, New Hampshire. You can reach out to her office (for appointments etc.) via phone at (603) 436-5110.

Dr Caitlin E Dwyer is licensed to practice in New York (license number 269181) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1629411301.

Contact Information

Dr Caitlin E Dwyer, MD
333 Borthwick Ave Ste 100,
Portsmouth, NH 03801-4198
(603) 436-5110
Not Available

Map and Direction




Physician's Profile

Full NameDr Caitlin E Dwyer
GenderFemale
SpecialityEmergency Medicine
Experience15 Years
Location333 Borthwick Ave Ste 100, Portsmouth, New Hampshire
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Caitlin E Dwyer attended and graduated from New York Medical College in 2009
  NPI Data:
  • NPI Number: 1629411301
  • Provider Enumeration Date: 04/11/2013
  • Last Update Date: 06/29/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5698909190
  • Enrollment ID: I20190402002758

Medical Identifiers

Medical identifiers for Dr Caitlin E Dwyer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1629411301NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 269181 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Portsmouth Regional HospitalPortsmouth, NHHospital
Southern Maine Health CareBiddeford, MEHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Emergency Medicine Services Of Nh, Llc317398847420

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Caitlin E Dwyer allows following entities to bill medicare on her behalf.
Entity NameEmergency Medicine Services Of Nh, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386341444
PECOS PAC ID: 3173988474
Enrollment ID: O20230419002879
Entity NameHospital Medicine Services Of Nh, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548967607
PECOS PAC ID: 8527423706
Enrollment ID: O20230421000740

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Caitlin E Dwyer is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Caitlin E Dwyer, MD
73 Melbourne St # 2,
Portland, ME 04101-2704

Ph: () -
Dr Caitlin E Dwyer, MD
333 Borthwick Ave Ste 100,
Portsmouth, NH 03801-4198

Ph: (603) 436-5110

Reviews and Comments


Emergency Medicine Doctors in Portsmouth, NH

Samuel W Trotzky, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 333 Borthwick Ave, Portsmouth, NH 03801
Phone: 603-433-4012    Fax: 603-433-5184
Steven J Bos, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 333 Borthwick Ave, Portsmouth, NH 03801
Phone: 603-433-4012    Fax: 603-433-5184
Samantha Arnold,
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 333 Borthwick Ave, Portsmouth, NH 03801
Phone: 603-674-9496    
Dr. William P Carter Iii, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 333 Borthwick Ave, Portsmouth, NH 03801
Phone: 603-436-5110    
Alexandra Loomis, DO
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 333 Borthwick Ave Ste 100, Portsmouth, NH 03801
Phone: 617-763-1295    
Harry Joseph Wallus, D.O.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 333 Borthwick Ave, Portsmouth, NH 03801
Phone: 603-433-4012    Fax: 603-433-5184
Dr. Brian Christopher Collins, D.O.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 73 Corporate Dr, Suite 100, Portsmouth, NH 03801
Phone: 603-610-8051    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.