Felix Nau Jr, MD - Medicare Hospitalist in Washington, MO

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Felix Nau Jr, MD is a medicare enrolled "Internal Medicine" physician in Washington, Missouri. He graduated from medical school in 2009 and has 15 years of diverse experience with area of expertise as Hospitalist. He is a member of the group practice Mercy Clinic Adult Hospitalists - Washington, Llc, Boone Physician Services Llc and his current practice location is 901 E 5th St, Washington, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 239-8231.

Felix Nau Jr is licensed to practice in Missouri (license number 2020015141) 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 1932632544.

Contact Information

Felix Nau Jr, MD
901 E 5th St,
Washington, MO 63090-3127
(636) 239-8231
Not Available

Map and Direction




Physician's Profile

Full NameFelix Nau Jr
GenderMale
SpecialityHospitalist
Experience15 Years
Location901 E 5th St, Washington, Missouri
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:
  • Felix Nau Jr graduated from medical school in 2009
  NPI Data:
  • NPI Number: 1932632544
  • Provider Enumeration Date: 04/10/2017
  • Last Update Date: 09/19/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5294005351
  • Enrollment ID: I20200721001367

Medical Identifiers

Medical identifiers for Felix Nau Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1932632544NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 2020015141 (Missouri)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207R00000XInternal Medicine 2020015141 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Hospital WashingtonWashington, MOHospital
Boone Hospital CenterColumbia, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Clinic Adult Hospitalists - Washington, Llc357763054026
Boone Physician Services Llc6507090644228

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. Felix Nau Jr allows following entities to bill medicare on his behalf.
Entity NameMercy Hospitals East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851431738
PECOS PAC ID: 1658276811
Enrollment ID: O20031218000107
Entity NameMercy Clinic Adult Hospitalists - St. Louis, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841235108
PECOS PAC ID: 6002809944
Enrollment ID: O20040406001004
Entity NameMercy Clinic East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851335228
PECOS PAC ID: 7214827922
Enrollment ID: O20070521000006
Entity NameMercy Clinic Adult Hospitalists - Washington, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891943429
PECOS PAC ID: 3577630540
Enrollment ID: O20080917000782
Entity NameSt Anthonys Physician Organization Hospitalist Services Lc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407216336
PECOS PAC ID: 5092980656
Enrollment ID: O20111208000771
Entity NameBoone Physician Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760893259
PECOS PAC ID: 6507090644
Enrollment ID: O20131003000535
Entity NameMercy Clinic Adult Hospitalists Jefferson Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083052492
PECOS PAC ID: 8628205598
Enrollment ID: O20131220001798

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. Felix Nau Jr 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
Felix Nau Jr, MD
901 E 5th St,
Washington, MO 63090-3127

Ph: (636) 239-8231		Felix Nau Jr, MD
901 E 5th St,
Washington, MO 63090-3127

Ph: (636) 239-8231

Reviews and Comments


Internal Medicine Doctors in Washington, MO

Dr. Isaac I Cohen, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 901 Patients First Drive, Washington, MO 63090
Phone: 636-390-1600    Fax: 636-390-1601
Sudhanshu Gogia, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 901 Patients First Dr, Washington, MO 63090
Phone: 636-239-7344    Fax: 636-239-9436
Rashid Mahmood Qureshi, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 901 E 5th St, Washington, MO 63090
Phone: 636-239-8231    
Dr. Nicholas W Frederickson, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 901 Patients First Drive Suite 3300, Washington, MO 63090
Phone: 636-239-7344    Fax: 636-239-9436
Dr. John R Douglas Peterson, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 901 Patients First Dr Ste 3300, Washington, MO 63090
Phone: 636-239-7344    
Mohan Mallikarjuna Edupuganti, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 901 Patients First Dr Ste 2500, Washington, MO 63090
Phone: 636-239-2711    
Dr. Roberto Pacheco-coronado, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 901 Patients First Dr Ste 2500, Washington, MO 63090
Phone: 636-239-2711    

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.