Sarah S Naik, MD - Medicare Internal Medicine in Onalaska, WI

Sarah S Naik, MD is a medicare enrolled "Internal Medicine" physician in Onalaska, Wisconsin. She went to University Of Wooster Medical Department and graduated in 1995 and has 29 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Gundersen Lutheran Medical Center Inc, Gundersen Clinic Ltd and her current practice location is 3111 Gundersen Drive, Onalaska, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (608) 796-8630.

Sarah S Naik is licensed to practice in Wisconsin (license number 40777) 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 1891797106.

Contact Information

Sarah S Naik, MD
3111 Gundersen Drive,
Onalaska, WI 54650-8512
(608) 796-8630
Not Available

Map and Direction




Physician's Profile

Full NameSarah S Naik
GenderFemale
SpecialityInternal Medicine
Experience29 Years
Location3111 Gundersen Drive, Onalaska, 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:
  • Sarah S Naik attended and graduated from University Of Wooster Medical Department in 1995
  NPI Data:
  • NPI Number: 1891797106
  • Provider Enumeration Date: 06/01/2005
  • Last Update Date: 06/02/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 4981734829
  • Enrollment ID: I20100618000858

Medical Identifiers

Medical identifiers for Sarah S Naik such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1891797106NPI-NPPES
32582000MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 40777 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Gundersen Lutheran Medical CenterLa crosse, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gundersen Lutheran Medical Center Inc2163331414789
Gundersen Clinic Ltd9638082779325

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. Sarah S Naik allows following entities to bill medicare on her behalf.
Entity NameGundersen Clinic Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851343115
PECOS PAC ID: 9638082779
Enrollment ID: O20031106000139
Entity NameGundersen Lutheran Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376593442
PECOS PAC ID: 2163331414
Enrollment ID: O20130619000254

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. Sarah S Naik 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
Sarah S Naik, MD
1836 South Ave,
La Crosse, WI 54601-5429

Ph: (608) 782-7300
Sarah S Naik, MD
3111 Gundersen Drive,
Onalaska, WI 54650-8512

Ph: (608) 796-8630

Reviews and Comments


Internal Medicine Doctors in Onalaska, WI

Gerlyn M Brasic, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 191 Theater Road, Onalaska, WI 54650
Phone: 608-392-5025    Fax: 608-392-5788
Jack M Lockhart, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3111 Gundersen Dr, Onalaska, WI 54650
Phone: 608-775-8630    
Mark J Patterson, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3111 Gundersen Dr, Onalaska, WI 54650
Phone: 608-782-7300    
Dr. Robert C Uchiyama, M. D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 191 Theater Rd, Onalaska, WI 54650
Phone: 608-785-0940    
Dr. Tiffany Jean Marinier, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3111 Gundersen Dr, Onalaska, WI 54650
Phone: 608-775-8630    
Jeffrey John Jones Addison, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3111 Gundersen Dr, Onalaska, WI 54650
Phone: 608-775-8100    
Dr. Jared I Darveaux, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 311 Gundersen Dr, Onalaska, WI 54650
Phone: 608-775-8100    

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.