Ran Guan, MD, MS - Medicare Internal Medicine in Grafton, WI

Ran Guan, MD, MS is a medicare enrolled "Hospitalist" physician in Grafton, Wisconsin. She graduated from medical school in 1994 and has 30 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Aurora Medical Group, Inc. and her current practice location is 975 Port Washington Rd, Grafton, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (262) 329-1000.

Ran Guan is licensed to practice in Wisconsin (license number 54599020) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1275774192.

Contact Information

Ran Guan, MD, MS
975 Port Washington Rd,
Grafton, WI 53024-9201
(262) 329-1000
Not Available

Map and Direction




Physician's Profile

Full NameRan Guan
GenderFemale
SpecialityInternal Medicine
Experience30 Years
Location975 Port Washington Rd, Grafton, Wisconsin
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ran Guan graduated from medical school in 1994
  NPI Data:
  • NPI Number: 1275774192
  • Provider Enumeration Date: 03/23/2009
  • Last Update Date: 11/23/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2769638246
  • Enrollment ID: I20120816000343

Medical Identifiers

Medical identifiers for Ran Guan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275774192NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 54599020 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Aurora At HomeWauwatosa, WIHospice
Aurora Medical Center - GraftonGrafton, WIHospital
Aurora Sheboygan Memorial Medical CtrSheboygan, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Aurora Medical Group, Inc.67097942583269

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. Ran Guan allows following entities to bill medicare on her behalf.
Entity NameAurora Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427271378
PECOS PAC ID: 6709794258
Enrollment ID: O20031105000725

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. Ran Guan 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
Ran Guan, MD, MS
975 Port Washington Rd,
Grafton, WI 53024-9201

Ph: () -
Ran Guan, MD, MS
975 Port Washington Rd,
Grafton, WI 53024-9201

Ph: (262) 329-1000

Reviews and Comments


Hospitalist Doctors in Grafton, WI

Richard J. Lusis, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 215 Washington St, Grafton, WI 53024
Phone: 262-375-3700    Fax: 262-376-6032
Hamid Abbas Afsari, D.O.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Port Washington Rd, Grafton, WI 53024
Phone: 262-329-1000    
Dr. Farah Hamdard, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Port Washington Rd, Grafton, WI 53024
Phone: 414-328-7256    
Dr. David B Thompson, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Port Washington Rd, Grafton, WI 53024
Phone: 262-329-3155    Fax: 262-329-3151
Dr. Hany Samir Beshara Marcos, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Port Washington Rd, Grafton, WI 53024
Phone: 262-329-1000    
Mitchell R Elgin, D.O.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Port Washington Rd, Grafton, WI 53024
Phone: 262-329-1000    

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.