Dr Fidel E Castillo Diaz, MD - Medicare Geriatric Medicine in Chicago, IL

  1. Home
  2. Geriatric Medicine
  3. IL
  4. Chicago
Dr Fidel E Castillo Diaz, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Chicago, Illinois. He graduated from medical school in 1998 and has 26 years of diverse experience with area of expertise as Geriatric Medicine. He is a member of the group practice The Board Of Trustees Of The University Of Illinois and his current practice location is 840 S Wood St, M-c 717 Csn 440, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (312) 996-7704.

Dr Fidel E Castillo Diaz is licensed to practice in Illinois (license number 036124066) 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 1689667347.

Contact Information

Dr Fidel E Castillo Diaz, MD
840 S Wood St, M-c 717 Csn 440,
Chicago, IL 60612-4325
(312) 996-7704
(312) 413-8283

Map and Direction




Physician's Profile

Full NameDr Fidel E Castillo Diaz
GenderMale
SpecialityGeriatric Medicine
Experience26 Years
Location840 S Wood 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:
  • Dr Fidel E Castillo Diaz graduated from medical school in 1998
  NPI Data:
  • NPI Number: 1689667347
  • Provider Enumeration Date: 08/29/2005
  • Last Update Date: 03/05/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 2163619156
  • Enrollment ID: I20101202000876

Medical Identifiers

Medical identifiers for Dr Fidel E Castillo Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689667347NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine 036124066 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Illinois HospitalChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Board Of Trustees Of The University Of Illinois3072422716923

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 Fidel E Castillo Diaz allows following entities to bill medicare on his behalf.
Entity NameThe Board Of Trustees Of The University Of Illinois
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386863819
PECOS PAC ID: 3072422716
Enrollment ID: O20031112000158

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 Fidel E Castillo Diaz 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 Fidel E Castillo Diaz, MD
840 S Wood St, M-c 717 Csn 440,
Chicago, IL 60612-4325

Ph: () -		Dr Fidel E Castillo Diaz, MD
840 S Wood St, M-c 717 Csn 440,
Chicago, IL 60612-4325

Ph: (312) 996-7704

Reviews and Comments


Internal Medicine Doctors in Chicago, IL

Dr. Sorin C Danciu, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3134 N Clark St, Chicago, IL 60657
Phone: 773-880-9722    
Anoopa A. Koshy, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 259 E Erie St Ste 2200, Chicago, IL 60611
Phone: 312-926-6000    
William Edmond Gerardi, M.D.
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3730 N Lake Shore Dr, Apartment 2a, Chicago, IL 60613
Phone: 773-244-3060    
Suparna Dutta, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1700 W Van Buren St, Suite 500, Chicago, IL 60612
Phone: 312-942-4200    Fax: 312-942-3568
Alexandra Dumitrescu,
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5841 S Maryland Ave, Chicago, IL 60637
Phone: 888-824-0200    
Dr. Mitesh Mahesh Kabadi, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1725 W Harrison St Ste 1159, Chicago, IL 60612
Phone: 312-942-5020    
Dr. Marta Batus, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1725 W Harrison St, Suite 809, Chicago, IL 60612
Phone: 312-563-2487    Fax: 312-942-3192

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.