Guadalupe S Sitjar, MD - Medicare Internal Medicine in Gurnee, IL

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Guadalupe S Sitjar, MD is a medicare enrolled "Internal Medicine" physician in Gurnee, Illinois. Her current practice location is 135 North Greenleaf, Suite #224, Gurnee, Illinois. You can reach out to her office (for appointments etc.) via phone at (847) 336-9159.

Guadalupe S Sitjar is licensed to practice in Illinois (license number ) 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 1497870315.

Contact Information

Guadalupe S Sitjar, MD
135 North Greenleaf, Suite #224,
Gurnee, IL 60031-3371
(847) 336-9159
(847) 336-9159

Map and Direction




Physician's Profile

Full NameGuadalupe S Sitjar
GenderFemale
SpecialityInternal Medicine
Location135 North Greenleaf, Gurnee, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1497870315
  • Provider Enumeration Date: 03/20/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3971797168
  • Enrollment ID: I20101102000187

Medical Identifiers

Medical identifiers for Guadalupe S Sitjar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497870315NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine (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. Guadalupe S Sitjar allows following entities to bill medicare on her behalf.
Entity NameIntegra Medical Doctors Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700189677
PECOS PAC ID: 9830372192
Enrollment ID: O20110323000749
Entity NamePhysicians House Calls
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366000648
PECOS PAC ID: 2668708579
Enrollment ID: O20190731000715
Entity NameCommunity Visiting Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497539969
PECOS PAC ID: 8426403270
Enrollment ID: O20231013001150

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. Guadalupe S Sitjar 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
Guadalupe S Sitjar, MD
135 North Greenleaf, Suite #224,
Gurnee, IL 60031-3371

Ph: (847) 336-9159		Guadalupe S Sitjar, MD
135 North Greenleaf, Suite #224,
Gurnee, IL 60031-3371

Ph: (847) 336-9159

Reviews and Comments


Internal Medicine Doctors in Gurnee, IL

Dr. Fred B Rosenberg, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 20 Tower Ct, Suite C, Gurnee, IL 60031
Phone: 847-244-2960    Fax: 847-244-2986
Dr. Xavier W Parreno, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 135 N Greenleaf St, Suite 100, Gurnee, IL 60031
Phone: 847-336-2150    Fax: 847-336-2160
Dr. Efren C. Estrella, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 36100 N Brookside Dr, Gurnee, IL 60031
Phone: 847-535-7900    Fax: 847-535-8761
Dr. Rakhi Khanna, D.O
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1425 N Hunt Club Rd Ste 301, Gurnee, IL 60031
Phone: 847-855-9252    Fax: 847-855-5215
Nevin Murthy, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7900 Rollins Rd Ste B1300, Gurnee, IL 60031
Phone: 847-570-2512    Fax: 847-570-1696
Peter M. Oshin, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 Tower Ct Ste 265, Gurnee, IL 60031
Phone: 847-623-8818    Fax: 847-625-8059
Jason Scott Kramer, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 36100 N Brookside Dr, Suite 206, Gurnee, IL 60031
Phone: 847-856-2090    Fax: 847-856-2093

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.