Dr Sara Jean Twiehaus, DO - Medicare Obstetrics & Gynecology in Chicago, IL

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Dr Sara Jean Twiehaus, DO is a medicare enrolled "Obstetrics & Gynecology" physician in Chicago, Illinois. Her current practice location is 2001 S California Ave Ste 100, Chicago, Illinois. You can reach out to her office (for appointments etc.) via phone at (773) 584-6200.

Dr Sara Jean Twiehaus is licensed to practice in Illinois (license number 125.073145) 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 1285128926.

Contact Information

Dr Sara Jean Twiehaus, DO
2001 S California Ave Ste 100,
Chicago, IL 60608-2486
(773) 584-6200
Not Available

Map and Direction




Physician's Profile

Full NameDr Sara Jean Twiehaus
GenderFemale
SpecialityObstetrics & Gynecology
Location2001 S California Ave Ste 100, Chicago, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1285128926
  • Provider Enumeration Date: 06/17/2018
  • Last Update Date: 09/27/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 8426307612
  • Enrollment ID: I20220825001474

Medical Identifiers

Medical identifiers for Dr Sara Jean Twiehaus such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285128926NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 036.161001 (Illinois)Secondary
207V00000XObstetrics & Gynecology 125.073145 (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. Dr Sara Jean Twiehaus allows following entities to bill medicare on her behalf.
Entity NameRush University Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093819542
PECOS PAC ID: 5496658874
Enrollment ID: O20040202000228
Entity NameSaint Anthony Health Affiliates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881086064
PECOS PAC ID: 1254321474
Enrollment ID: O20040518000419
Entity NameEsperanza Health Centers
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124187125
PECOS PAC ID: 2961453105
Enrollment ID: O20050204000750

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 Sara Jean Twiehaus 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 Sara Jean Twiehaus, DO
2001 S California Ave Ste 100,
Chicago, IL 60608-2486

Ph: (612) 590-3884		Dr Sara Jean Twiehaus, DO
2001 S California Ave Ste 100,
Chicago, IL 60608-2486

Ph: (773) 584-6200

Reviews and Comments


Obstetrics & Gynecology Doctors in Chicago, IL

Elizabeth Isak,
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Phone: 312-926-8811    Fax: 312-926-8855
Malavika Kalyani Perinchery, MD
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Margaret C Schermerhorn, MD
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Maria Teresa Tam, MD
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Practice Location: 2845 N Sheridan Rd, Ste 902, Chicago, IL 60657
Phone: 773-904-8641    Fax: 872-888-1206
Mr. Clyde Harris Lawson, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 8234 S. Ashland Avenue, Chicago, IL 60620
Phone: 773-874-1400    Fax: 773-874-9245
Rebekah Osgood, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 680 N Lake Shore Dr Ste 810, Chicago, IL 60611
Phone: 312-926-3627    Fax: 312-587-9802
Dr. Sarah Hoque, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 2001 S California Ave, Chicago, IL 60608
Phone: 773-584-6200    

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.

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