Charlotte Williamson Croteau, MD - Medicare Emergency Medicine in Boston, MA

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Charlotte Williamson Croteau, MD is a medicare enrolled "Emergency Medicine" physician in Boston, Massachusetts. Her current practice location is 55 Fruit St, Boston, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (617) 724-0288.

Charlotte Williamson Croteau is licensed to practice in Massachusetts (license number 1013133) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1669935250.

Contact Information

Charlotte Williamson Croteau, MD
55 Fruit St,
Boston, MA 02114-2696
(617) 724-0288
Not Available

Map and Direction




Physician's Profile

Full NameCharlotte Williamson Croteau
GenderFemale
SpecialityEmergency Medicine
Location55 Fruit St, Boston, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1669935250
  • Provider Enumeration Date: 04/10/2019
  • Last Update Date: 11/17/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5890152557
  • Enrollment ID: I20230612001576

Medical Identifiers

Medical identifiers for Charlotte Williamson Croteau such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1669935250NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 1013133 (Massachusetts)Primary

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. Charlotte Williamson Croteau allows following entities to bill medicare on her behalf.
Entity NameMassachusetts General Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801874573
PECOS PAC ID: 2466365820
Enrollment ID: O20031111000434
Entity NameMartha's Vineyard Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194866210
PECOS PAC ID: 9931166113
Enrollment ID: O20041220000589
Entity NameNorth Shore Physicians Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588606123
PECOS PAC ID: 3577467224
Enrollment ID: O20050429000668
Entity NameThe General Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023049236
PECOS PAC ID: 6507803806
Enrollment ID: O20080313000351

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. Charlotte Williamson Croteau 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
Charlotte Williamson Croteau, MD
55 Fruit St,
Boston, MA 02114-2696

Ph: (617) 724-0288		Charlotte Williamson Croteau, MD
55 Fruit St,
Boston, MA 02114-2696

Ph: (617) 724-0288

Reviews and Comments


Emergency Medicine Doctors in Boston, MA

Yeu-shin Cindy Chang, M.D., M.P.H.
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Medicare: Accepting Medicare Assignments
Practice Location: 75 Francis St, Bwh Dept. Of Emergency Medicine, Boston, MA 02115
Phone: 617-732-8070    
Lorenzo Albala, MD
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Practice Location: 55 Fruit St, Boston, MA 02114
Phone: 617-724-4068    
Dr. Jacob Ari Hurwitz, MD MPH
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Practice Location: 55 Fruit St, Boston, MA 02114
Phone: 617-724-4068    
Christopher Lites, MD
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Practice Location: 330 Brookline Ave, Boston, MA 02215
Phone: 617-667-7000    
Aneesh T Narang, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1 Boston Medical Ctr Pl, Dowling 1 South, Boston, MA 02118
Phone: 617-414-5481    Fax: 617-414-7759
Dr. Justin Thomas Pitman, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 75 Francis St, Neville House - 236a, Boston, MA 02115
Phone: 617-732-8070    
Dr. Nadine Youssef, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 750 Washington St, Box 311 / Department Of Emergency Medicine, Boston, MA 02111
Phone: 617-636-4723    

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.