CHRISTOPHER WILLIAM NAU MD
NPI 1104023092
Internal Medicine in Chillicothe, IL

Q: What is Christopher Nau's NPI number?

The NPI number for Christopher Nau is 1104023092. It was assigned to this individual provider in the NPPES registry on July 2, 2007.

Q: What is Christopher Nau's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Christopher Nau was last updated on February 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 02, 2007PECOS EnrolledAccepts Medicare Assignment

311 N 4TH ST, CHILLICOTHE, IL 61523(309) 274-4336(309) 274-3120 Get Directions Write a Review

NPPES record last updated: February 4, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Christopher William Nau Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTOPHER WILLIAM NAU MD (NPI 1104023092) is an individual internal medicine provider in Chillicothe, Illinois, licensed in Illinois (036125692) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with Saint Francis Medical Center, and maintains a secondary practice location in Peoria.

NPPES Registry Identity

NPI1104023092

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameCHRISTOPHER WILLIAM NAUCredential: MD

Location Address311 N 4TH STChillicothe, IL 61523-2059

Mailing Address311 N 4th StChillicothe, IL 61523-2059 · (309) 274-4336 · Fax (309) 274-3120

Phone(309) 274-4336

Fax(309) 274-3120

Sole ProprietorYes

Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2007

Enumeration DateJuly 2, 2007

Last NPPES UpdateFebruary 4, 2025

NPPES CertifiedFebruary 4, 2025

✔ NPI 1104023092 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in IL · 036125692

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedPediatricsTaxonomy 208000000X · License 036125692 (IL)

311 N 4TH ST, Chillicothe, IL 61523

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Secondary Practice Location 1

Location 1530 NE Glen Oak AvePeoria, IL 61603-3133 · Phone (309) 655-3000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher William Nau Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103084926

PECOS Enrollment IDI20120225000084

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

331 services216 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

84 services63 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

70 services69 patients

Influenza vaccine, inactivated 90653

The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.

60 services60 patients

Routine electrocardiogram (ecg) using at least 12 leads with tracing 93005

An Electrocardiogram (ECG) is a simple, painless test that records the heart's electrical activity. Using 12 leads attached to your skin, it generates a tracing of your heart rhythm. It helps detect any heart problems by showing the timing and strength of electrical signals passing through each part of your heart.

23 services23 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

23 services19 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

20 services20 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

20 services20 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

16 services11 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

16 services16 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

15 services15 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Francis Medical Center

Acute Care Hospitals · Peoria, IL

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140067

Location530 NE Glen Oak AvePeoria, IL 61637 · Peoria County

Emergency services Birthing friendly

Methodist Medical Center Of Illinois

Acute Care Hospitals · Peoria, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140209

Location221 N E Glen Oak AvePeoria, IL 61636 · Peoria County

Emergency services Birthing friendly

Osf Saint Luke Medical Center

Critical Access Hospitals · Kewanee, IL

OwnershipVoluntary non-profit - Private

CMS Certification Number141325

Location1051 West South StreetKewanee, IL 61443 · Henry County

Emergency services

Osf Saint Clare Medical Center

Critical Access Hospitals · Princeton, IL

OwnershipGovernment - Local

CMS Certification Number141337

Location530 Park Avenue EastPrinceton, IL 61356 · Bureau County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61523 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$127.46 typical visit price

range $54.80 – $168.44

Typical copayment $31.86 (range $13.70 – $42.11)

Most-billed visit code 99204

Established Patient

$97.25 typical visit price

range $17.16 – $136.56

Typical copayment $24.31 (range $4.29 – $34.14)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

7 suppliers31 claims91 services$6.18 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

3 suppliers11 claims11 services$35.21 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

3 suppliers11 claims61 services$2.03 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers29 claims29 services$79.51 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

2 suppliers19 claims19 services$31.14 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRADLEY BOCK APRN, FNP-BC, FNP-C

Nurse Practitioner (Family)

311 N 4TH ST
CHILLICOTHE, IL 61523

Peoria County (309) 274-4336

DR. JOSHUA TRAVIS MURPHY

Physical Therapist

311 N 4TH ST
CHILLICOTHE, IL 61523

Peoria County (309) 274-9447

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christopher Nau's NPI number?

The NPI number for Christopher Nau is 1104023092. It was assigned to this individual provider in the NPPES registry on July 2, 2007.

Where is Christopher Nau located?

Christopher Nau practices at 311 N 4th St, Chillicothe, IL 61523. The listed phone number is (309) 274-4336.

What is Christopher Nau's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Christopher Nau enrolled in Medicare?

Yes. Christopher Nau is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Christopher Nau accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Christopher Nau as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Christopher Nau affiliated with any hospitals?

According to CMS data, Christopher Nau is affiliated with Saint Francis Medical Center, Methodist Medical Center Of Illinois, Osf Saint Luke Medical Center and Osf Saint Clare Medical Center.

When was this NPI record last updated?

The NPPES record for Christopher Nau was last updated on February 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.