Claudia Carvajal Guillen, RN, CNP - Medicare Nurse Practitioner in Chelsea, MA

Claudia Carvajal Guillen, RN, CNP is a medicare enrolled "Nurse Practitioner" in Chelsea, Massachusetts. She graduated from nursing school in 2019 and has 5 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice President And Fellows Of Harvard College, Massachusetts General Physicians Organization Inc, The General Hospital Corporation and her current practice location is 151 Everett Ave, Chelsea, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (617) 726-8055.

Claudia Carvajal Guillen is licensed to practice in Massachusetts (license number RN2281078) 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 1295153369.

Contact Information

Claudia Carvajal Guillen, RN, CNP
151 Everett Ave,
Chelsea, MA 02150-1812
(617) 726-8055
Not Available

Map and Direction




Provider's Profile

Full NameClaudia Carvajal Guillen
GenderFemale
SpecialityNurse Practitioner
Experience5 Years
Location151 Everett Ave, Chelsea, Massachusetts
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:
  • Claudia Carvajal Guillen graduated from nursing school in 2019
  NPI Data:
  • NPI Number: 1295153369
  • Provider Enumeration Date: 04/04/2014
  • Last Update Date: 01/08/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 4082042312
  • Enrollment ID: I20200319000516

Medical Identifiers

Medical identifiers for Claudia Carvajal Guillen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295153369NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163W00000XRegistered Nurse RN2281078 (Massachusetts)Secondary
363L00000XNurse Practitioner RN2281078 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Massachusetts General HospitalBoston, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
President And Fellows Of Harvard College206230389492
Massachusetts General Physicians Organization Inc24663658203084
The General Hospital Corporation65078038061058

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. Claudia Carvajal Guillen 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 NamePresident & Fellows Of Harvard College
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952366312
PECOS PAC ID: 2062303894
Enrollment ID: O20040322001750
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. Claudia Carvajal Guillen 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
Claudia Carvajal Guillen, RN, CNP
151 Everett Ave,
Chelsea, MA 02150-1812

Ph: () -
Claudia Carvajal Guillen, RN, CNP
151 Everett Ave,
Chelsea, MA 02150-1812

Ph: (617) 726-8055

Reviews and Comments


Nurse Practitioner Nurses in Chelsea, MA

Michelle Cataldo,
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 301 Broadway, Chelsea, MA 02150
Phone: 617-912-7914    
Dr. Barbara R. Kelley, PNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 100 Everett Ave, Chelsea, MA 02150
Phone: 617-884-8300    
Ms. Gail B Gall, APRN, BC
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 151 Everett Avenue, Chelsea, MA 02150
Phone: 617-884-8300    
Deborah Mahony, APRN,BC
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: Mgh Chelsea Health Center, 151 Everett Avenue, Chelsea, MA 02150
Phone: 617-889-8520    
Shannon R Healy, N.P.
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Broadway, Chelsea, MA 02150
Phone: 617-975-6200    
Mallory Toomey,
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Broadway, Chelsea, MA 02150
Phone: 617-975-6200    
Sabrina Monzione, FNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 25 Carroll St Apt 1, Chelsea, MA 02150
Phone: 617-872-3129    

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.