Dr Caitlin Grace Williams, PSYD, LCP - Medicare Psychologist in Chicago, IL

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Dr Caitlin Grace Williams, PSYD, LCP is a medicare enrolled "Psychologist - Clinical" provider in Chicago, Illinois. Her current practice location is 641 W 63rd St, Chicago, Illinois. You can reach out to her office (for appointments etc.) via phone at (773) 388-1600.

Dr Caitlin Grace Williams is licensed to practice in Illinois (license number 071.008859) 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 1447770060.

Contact Information

Dr Caitlin Grace Williams, PSYD, LCP
641 W 63rd St,
Chicago, IL 60621-2032
(773) 388-1600
(773) 783-8197

Map and Direction




Healthcare Provider's Profile

Full NameDr Caitlin Grace Williams
GenderFemale
SpecialityPsychologist - Clinical
Location641 W 63rd 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: 1447770060
  • Provider Enumeration Date: 06/24/2017
  • Last Update Date: 06/24/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 4880966902
  • Enrollment ID: I20170823003304

Medical Identifiers

Medical identifiers for Dr Caitlin Grace Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1447770060NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
103TC0700XPsychologist - Clinical 071.008859 (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. Dr Caitlin Grace Williams allows following entities to bill medicare on her behalf.
Entity NameMount Sinai Community Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376715896
PECOS PAC ID: 5991600405
Enrollment ID: O20040202001032
Entity NameHoward Brown Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306048632
PECOS PAC ID: 1052203155
Enrollment ID: O20040325000526

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 Caitlin Grace Williams 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 Caitlin Grace Williams, PSYD, LCP
77 W Huron St Apt 1511,
Chicago, IL 60654-5325

Ph: (608) 658-1095		Dr Caitlin Grace Williams, PSYD, LCP
641 W 63rd St,
Chicago, IL 60621-2032

Ph: (773) 388-1600

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.