John Croghan, MD - Medicare Internal Medicine in Winnetka, IL

John Croghan, MD is a medicare enrolled "Internal Medicine" physician in Winnetka, Illinois. He went to Rush Medical College Of Rush University and graduated in 1986 and has 38 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Dedication Health Llc and his current practice location is 710 Oak St, Winnetka, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 840-1470.

John Croghan is licensed to practice in Illinois (license number 036076821) 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 1790724060.

Contact Information

John Croghan, MD
710 Oak St,
Winnetka, IL 60093-2522
(847) 840-1470
Not Available

Map and Direction




Physician's Profile

Full NameJohn Croghan
GenderMale
SpecialityInternal Medicine
Experience38 Years
Location710 Oak St, Winnetka, 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:
  • John Croghan attended and graduated from Rush Medical College Of Rush University in 1986
  NPI Data:
  • NPI Number: 1790724060
  • Provider Enumeration Date: 06/05/2006
  • Last Update Date: 02/03/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 7315840246
  • Enrollment ID: I20050929000673

Medical Identifiers

Medical identifiers for John Croghan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1790724060NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 036076821 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northshore University Healthsystem - Evanston HospitalEvanston, ILHospital
Vi At The GlenGlenview, ILNursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dedication Health Llc78102906995

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. John Croghan allows following entities to bill medicare on his behalf.
Entity NameDedication Health Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326403593
PECOS PAC ID: 7810290699
Enrollment ID: O20160128001630

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. John Croghan 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
John Croghan, MD
710 Oak St,
Winnetka, IL 60093-2522

Ph: (847) 986-6770
John Croghan, MD
710 Oak St,
Winnetka, IL 60093-2522

Ph: (847) 840-1470

Reviews and Comments


Internal Medicine Doctors in Winnetka, IL

Dr. Kristi A Tough Desapri, M.D.
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David R. Donnersberger, MD
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E. Dennis Murphy, MD
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Dr. Alfred Torrence, MD
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Dr. Robin M Wind, M.D.
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Practice Location: 525 Winnetka Ave, Winnetka, IL 60093
Phone: 847-446-1112    Fax: 847-446-1717
Robert M Magrisso, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 530 Winnetka Ave, Winnetka, IL 60093
Phone: 847-441-6867    Fax: 847-441-6895
Dr. Richard Dale Stern, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 710 Oak St, Winnetka, IL 60093
Phone: 847-986-6770    Fax: 224-505-5960

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.