Melissa As Duffy, PA-C - Medicare Physician Assistant in Chicago, IL

Melissa As Duffy, PA-C is a medicare enrolled "Physician Assistant" in Chicago, Illinois. She graduated from nursing school in 2010 and has 14 years of diverse experience with area of expertise as Physician Assistant. She is a member of the group practice Northwestern Medical Faculty Foundation and her current practice location is 675 N Saint Clair St, Suite 21-100, Chicago, Illinois. You can reach out to her office (for appointments etc.) via phone at (312) 695-0990.

Melissa As Duffy is licensed to practice in Illinois (license number 085.003907) 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 1528369584.

Contact Information

Melissa As Duffy, PA-C
675 N Saint Clair St, Suite 21-100,
Chicago, IL 60611-5975
(312) 695-0990
(312) 695-3098

Map and Direction




Provider's Profile

Full NameMelissa As Duffy
GenderFemale
SpecialityPhysician Assistant
Experience14 Years
Location675 N Saint Clair St, Chicago, Illinois
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:
  • Melissa As Duffy graduated from nursing school in 2010
  NPI Data:
  • NPI Number: 1528369584
  • Provider Enumeration Date: 11/08/2010
  • Last Update Date: 01/10/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 6800078122
  • Enrollment ID: I20110308000787

Medical Identifiers

Medical identifiers for Melissa As Duffy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528369584NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 085.003907 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northwestern Memorial HospitalChicago, ILHospital
Northwestern Lake Forest HospitalLake forest, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northwestern Medical Faculty Foundation45875768143352

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. Melissa As Duffy 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
Melissa As Duffy, PA-C
680 N Lake Shore Dr, Suite 1000,
Chicago, IL 60611-3092

Ph: (312) 695-0665
Melissa As Duffy, PA-C
675 N Saint Clair St, Suite 21-100,
Chicago, IL 60611-5975

Ph: (312) 695-0990

Reviews and Comments


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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).

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