Dr Carlos Fernandez-del-castillo, MD - Medicare General Surgery in Boston, MA

Dr Carlos Fernandez-del-castillo, MD is a medicare enrolled "Surgery" physician in Boston, Massachusetts. He graduated from medical school in 1982 and has 42 years of diverse experience with area of expertise as General Surgery. He is a member of the group practice Massachusetts General Physicians Organization Inc and his current practice location is 15 Parkman St, Wac 336, Boston, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 726-5644.

Dr Carlos Fernandez-del-castillo is licensed to practice in Massachusetts (license number 78466) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1225029788.

Contact Information

Dr Carlos Fernandez-del-castillo, MD
15 Parkman St, Wac 336,
Boston, MA 02114-3117
(617) 726-5644
(617) 724-3383

Map and Direction




Physician's Profile

Full NameDr Carlos Fernandez-del-castillo
GenderMale
SpecialityGeneral Surgery
Experience42 Years
Location15 Parkman St, Boston, Massachusetts
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Carlos Fernandez-del-castillo graduated from medical school in 1982
  NPI Data:
  • NPI Number: 1225029788
  • Provider Enumeration Date: 11/03/2005
  • Last Update Date: 12/03/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 2264412105
  • Enrollment ID: I20040722000161

Medical Identifiers

Medical identifiers for Dr Carlos Fernandez-del-castillo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225029788NPI-NPPES
J11634OtherMABCBS MA
722156OtherMATUFTS HEALTH PLAN
3081826MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 78466 (Massachusetts)Secondary
208600000XSurgery 78466 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Partners Healthcare At Home - Home CareWaltham, MAHome health agency
Massachusetts General HospitalBoston, MAHospital
Brigham And Women's HospitalBoston, MAHospital
North Shore Medical Center -Salem, MAHospital
Newton-wellesley HospitalNewton, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Massachusetts General Physicians Organization Inc24663658203084

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 Carlos Fernandez-del-castillo allows following entities to bill medicare on his 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 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. Dr Carlos Fernandez-del-castillo 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 Carlos Fernandez-del-castillo, MD
Po Box 9142, Mass General Physician Organization,
Charlestown, MA 02129-9142

Ph: (617) 726-5644
Dr Carlos Fernandez-del-castillo, MD
15 Parkman St, Wac 336,
Boston, MA 02114-3117

Ph: (617) 726-5644

Reviews and Comments


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Phone: 617-636-5000    

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.