Dr R David Mccallum, MD - Medicare General Surgery in Putnam, CT

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Dr R David Mccallum, MD is a medicare enrolled "Colon & Rectal Surgery" physician in Putnam, Connecticut. He went to Southern Illinois University School Of Medicine and graduated in 1988 and has 38 years of diverse experience with area of expertise as General Surgery. His current practice location is 346 Pomfret St, Putnam, Connecticut. You can reach out to his office (for appointments etc.) via phone at (860) 928-2552.

Dr R David Mccallum is licensed to practice in Connecticut (license number 041494) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1124085691.

Contact Information

Dr R David Mccallum, MD
346 Pomfret St,
Putnam, CT 06260-1871
(860) 928-2552
(820) 928-0317

Map and Direction




Physician's Profile

Full NameDr R David Mccallum
GenderMale
SpecialityGeneral Surgery
Experience38 Years
Location346 Pomfret St, Putnam, Connecticut
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr R David Mccallum attended and graduated from Southern Illinois University School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1124085691
  • Provider Enumeration Date: 04/28/2006
  • Last Update Date: 09/11/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 0941346779
  • Enrollment ID: I20091008000623

Medical Identifiers

Medical identifiers for Dr R David Mccallum such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124085691NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery 041494 (Connecticut)Secondary
208C00000XColon & Rectal Surgery 041494 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Windham Community Memorial HospitalWillimantic, CTHospital

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 R David Mccallum allows following entities to bill medicare on his behalf.
Entity NameWindham Community Memorial Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023191467
PECOS PAC ID: 2961309059
Enrollment ID: O20031217000231
Entity NameThe William W Backus Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467517235
PECOS PAC ID: 0749170645
Enrollment ID: O20040316000739
Entity NameDay Kimball Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376813972
PECOS PAC ID: 1557514411
Enrollment ID: O20130102000091
Entity NameHartford Healthcare Medical Group Specialists Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023584216
PECOS PAC ID: 3173866241
Enrollment ID: O20190514001441

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 R David Mccallum 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 R David Mccallum, MD
346 Pomfret St,
Putnam, CT 06260-1871

Ph: (860) 928-2552		Dr R David Mccallum, MD
346 Pomfret St,
Putnam, CT 06260-1871

Ph: (860) 928-2552

Reviews and Comments



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.