Dr Gregory N Lewis, PSYD - Medicare Psychologist in Wheaton, IL

Dr Gregory N Lewis, PSYD is a medicare enrolled "Psychologist - Clinical" provider in Wheaton, Illinois. He graduated from medical school in 1989 and has 35 years of diverse experience with area of expertise as Clinical Psychologist. He is a member of the group practice Alliance Clinical Associates Sc and his current practice location is 7 Blanchard Cir, Suite 201, Wheaton, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 653-2300.

Dr Gregory N Lewis is licensed to practice in Illinois (license number 071-004107) 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 1063471027.

Contact Information

Dr Gregory N Lewis, PSYD
7 Blanchard Cir, Suite 201,
Wheaton, IL 60189-2039
(630) 653-2300
(630) 653-2895

Map and Direction




Healthcare Provider's Profile

Full NameDr Gregory N Lewis
GenderMale
SpecialityClinical Psychologist
Experience35 Years
Location7 Blanchard Cir, Wheaton, Illinois
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 Gregory N Lewis graduated from medical school in 1989
  NPI Data:
  • NPI Number: 1063471027
  • Provider Enumeration Date: 03/20/2006
  • Last Update Date: 04/26/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 9638150311
  • Enrollment ID: I20040527001150

Medical Identifiers

Medical identifiers for Dr Gregory N Lewis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063471027NPI-NPPES
02215643OtherILBLUE CROSS BLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
103T00000XPsychologist 071004107 (Illinois)Secondary
103TC0700XPsychologist - Clinical 071-004107 (Illinois)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Alliance Clinical Associates Sc01432025728

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 Gregory N Lewis allows following entities to bill medicare on his behalf.
Entity NameCook County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588612832
PECOS PAC ID: 2860398088
Enrollment ID: O20031209000747
Entity NameAlliance Clinical Associates Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144299769
PECOS PAC ID: 0143202572
Enrollment ID: O20040805000281

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 Gregory N Lewis 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 Gregory N Lewis, PSYD
7 Blanchard Cir, Suite 201,
Wheaton, IL 60189-2037

Ph: (630) 653-2300
Dr Gregory N Lewis, PSYD
7 Blanchard Cir, Suite 201,
Wheaton, IL 60189-2039

Ph: (630) 653-2300

Reviews and Comments


Psychologist in Wheaton, IL

Dr. Barrett Mcray, PSY.D.
Psychologist
Medicare: Not Enrolled in Medicare
Practice Location: 7 Blanchard Cir, Suite 201, Wheaton, IL 60189
Phone: 630-653-2300    Fax: 630-653-2895
Quynh Chau, M.A.
Psychologist
Medicare: Accepting Medicare Assignments
Practice Location: 111 N County Farm Rd, Wheaton, IL 60187
Phone: 630-682-7400    
Doris M Van Byssum I, PSY.D.
Psychologist
Medicare: Accepting Medicare Assignments
Practice Location: 1725 S Naperville Rd, Suite 206, Wheaton, IL 60189
Phone: 630-653-6441    Fax: 630-653-8409
Dr. Natalia I Yangarber-hicks, PH.D.
Psychologist
Medicare: Not Enrolled in Medicare
Practice Location: 7 Blanchard Cir, Suite 201, Wheaton, IL 60187
Phone: 630-653-2300    Fax: 630-653-2895
Dr. Jennifer Schuler, PH.D.
Psychologist
Medicare: Accepting Medicare Assignments
Practice Location: 1725 S Naperville Rd, Suite 206, Wheaton, IL 60187
Phone: 630-653-6441    Fax: 630-653-8409
Dr. Connie Valentini, PSY.D.
Psychologist
Medicare: May Accept Medicare Assignments
Practice Location: 7 Blanchard Cir Ste 201, Wheaton, IL 60189
Phone: 630-653-2300    

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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