Diane Maria Less, PA-C - Medicare Physician Assistant in Chicago, IL

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Diane Maria Less, PA-C is a medicare enrolled "Physician Assistant" in Chicago, Illinois. Her current practice location is 1900 W Polk St, Chicago, Illinois. You can reach out to her office (for appointments etc.) via phone at (312) 864-0224.

Diane Maria Less is licensed to practice in Illinois (license number 085005150) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1497150486.

Contact Information

Diane Maria Less, PA-C
1900 W Polk St,
Chicago, IL 60612-3723
(312) 864-0224
(312) 864-9658

Map and Direction




Provider's Profile

Full NameDiane Maria Less
GenderFemale
SpecialityPhysician Assistant
Location1900 W Polk St, Chicago, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1497150486
  • Provider Enumeration Date: 11/03/2014
  • Last Update Date: 11/03/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 2163741851
  • Enrollment ID: I20150430001481

Medical Identifiers

Medical identifiers for Diane Maria Less such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497150486NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 085005150 (Illinois)Primary

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. Diane Maria Less allows following entities to bill medicare on her behalf.
Entity NameUniversity of Chicago
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821048786
PECOS PAC ID: 7719899426
Enrollment ID: O20031103000094
Entity NameThe University of Chicago Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033218128
PECOS PAC ID: 7618880766
Enrollment ID: O20031106000203
Entity NameCook County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588612832
PECOS PAC ID: 2860398088
Enrollment ID: O20031209000747
Entity NameEndeavor Health Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497701882
PECOS PAC ID: 2163334699
Enrollment ID: O20040524000118

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. Diane Maria Less 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
Diane Maria Less, PA-C
14 W Elm St, Apt 1704,
Chicago, IL 60610-7132

Ph: (630) 341-5217		Diane Maria Less, PA-C
1900 W Polk St,
Chicago, IL 60612-3723

Ph: (312) 864-0224

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).

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.