Dr William J Swiggard, MD, PHD - Medicare Infectious Disease in Northampton, MA

Dr William J Swiggard, MD, PHD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Northampton, Massachusetts. He went to Js Weill Medical College, Cornell University and graduated in 1996 and has 28 years of diverse experience with area of expertise as Infectious Disease. He is a member of the group practice Mazzoni Center and his current practice location is 22 Atwood Dr Ste 203, Northampton, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (413) 582-9186.

Dr William J Swiggard is licensed to practice in Massachusetts (license number 219042) 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 1457335622.

Contact Information

Dr William J Swiggard, MD, PHD
22 Atwood Dr Ste 203,
Northampton, MA 01060-4272
(413) 582-9186
(413) 923-9317

Map and Direction




Physician's Profile

Full NameDr William J Swiggard
GenderMale
SpecialityInfectious Disease
Experience28 Years
Location22 Atwood Dr Ste 203, Northampton, 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 William J Swiggard attended and graduated from Js Weill Medical College, Cornell University in 1996
  NPI Data:
  • NPI Number: 1457335622
  • Provider Enumeration Date: 12/01/2005
  • Last Update Date: 04/09/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 8628981669
  • Enrollment ID: I20211118000311

Medical Identifiers

Medical identifiers for Dr William J Swiggard such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457335622NPI-NPPES
0000000026856OtherMABMC HEALTHNET
3319701OtherMACIGNA HEALTHCARE
467273OtherMATUFTS HEALTH PLAN
33426OtherMAHEALTH NEW ENGLAND
J26629OtherMABCBS OF MASSACHUSETTS
7185266OtherMAAETNA
2025426MedicaidMA
219042OtherMACONNECTICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease 219042 (Massachusetts)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mazzoni Center85270437368

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 William J Swiggard allows following entities to bill medicare on his behalf.
Entity NameMazzoni Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477631307
PECOS PAC ID: 8527043736
Enrollment ID: O20040622000848

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 William J Swiggard 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 William J Swiggard, MD, PHD
22 Atwood Dr Ste 203,
Northampton, MA 01060-4272

Ph: (413) 582-9186
Dr William J Swiggard, MD, PHD
22 Atwood Dr Ste 203,
Northampton, MA 01060-4272

Ph: (413) 582-9186

Reviews and Comments


Internal Medicine Doctors in Northampton, MA

Alys Malcolm, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 30 Locust St, Northampton, MA 01060
Phone: 413-582-2900    Fax: 413-923-9322
Kyle A. Cooper, MD
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 325b King St, Northampton, MA 01060
Phone: 413-794-2273    Fax: 413-387-4136
Heather Wark, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 548 Elm St, Northampton, MA 01060
Phone: 413-586-3150    Fax: 413-774-7049
Dr. Howard Douglas Klein, M.D.
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 421 N Main St, Northampton, MA 01060
Phone: 413-584-4040    
Dr. Julio A. Miranda, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 30 Locust St, Northampton, MA 01060
Phone: 413-582-2114    Fax: 413-582-4968
Dr. Andrew F. Hall, M.D.
Infectious Disease
Medicare: Not Enrolled in Medicare
Practice Location: 264 Elm St, Suite 12, Northampton, MA 01060
Phone: 413-586-1100    Fax: 413-584-7062
Steven W Dipillo, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 325b King St, Northampton, MA 01060
Phone: 413-584-1588    Fax: 413-585-0821

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.