Leon Fogelfeld, MD - Medicare Endocrinology in Chicago, IL

Leon Fogelfeld, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Chicago, Illinois. He graduated from medical school in 1975 and has 49 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice County Of Ventura and his current practice location is 1725 W Harrison St, Suite 250, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (312) 942-6163.

Leon Fogelfeld is licensed to practice in California (license number C175830) 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 1699732305.

Contact Information

Leon Fogelfeld, MD
1725 W Harrison St, Suite 250,
Chicago, IL 60612-3841
(312) 942-6163
Not Available

Map and Direction




Physician's Profile

Full NameLeon Fogelfeld
GenderMale
SpecialityEndocrinology
Experience49 Years
Location1725 W Harrison St, Chicago, 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:
  • Leon Fogelfeld graduated from medical school in 1975
  NPI Data:
  • NPI Number: 1699732305
  • Provider Enumeration Date: 04/27/2006
  • Last Update Date: 11/01/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2769664226
  • Enrollment ID: I20220809002317

Medical Identifiers

Medical identifiers for Leon Fogelfeld such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1699732305NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 036-078595 (Illinois)Secondary
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism C175830 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ventura County Medical CenterVentura, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Ventura7911810171208

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. Leon Fogelfeld allows following entities to bill medicare on his behalf.
Entity NameCounty Of Ventura
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629167457
PECOS PAC ID: 7911810171
Enrollment ID: O20031112000587

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. Leon Fogelfeld 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
Leon Fogelfeld, MD
1725 W Harrison St, Suite 250,
Chicago, IL 60612-3841

Ph: (312) 942-6163
Leon Fogelfeld, MD
1725 W Harrison St, Suite 250,
Chicago, IL 60612-3841

Ph: (312) 942-6163

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.