CHRISTOPHER M. TANNER MD
NPI 1619394723
Emergency Medicine in Lake Geneva, WI

Q: What is Christopher Tanner's NPI number?

The NPI number for Christopher Tanner is 1619394723. It was assigned to this individual provider in the NPPES registry on March 26, 2014.

Q: What is Christopher Tanner's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Active since March 26, 2014PECOS EnrolledAccepts Medicare Assignment

N2950 STATE ROAD 67, LAKE GENEVA, WI 53147(262) 245-4990(262) 245-2248 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2022, Jun 29, 2017, Jan 3, 2017 (3 updates tracked since 2017).

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About Christopher M. Tanner Md NPPES

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

CHRISTOPHER M. TANNER MD (NPI 1619394723) is an individual emergency medicine provider in Lake Geneva, Wisconsin, licensed in Wisconsin (67231-20) and active in the NPI registry since March 2014. He is enrolled in Medicare PECOS, is affiliated with Mercy Health System Corp, and is a graduate of Rush Medical College Of Rush University (2014).

NPPES Registry Identity

NPI1619394723

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameCHRISTOPHER M. TANNERCredential: MD

Location AddressN2950 STATE ROAD 67Lake Geneva, WI 53147-2655

Mailing AddressN2950 State Road 67Lake Geneva, WI 53147-2655 · (262) 245-4990 · Fax (262) 245-2248

Phone(262) 245-4990

Fax(262) 245-2248

Sole ProprietorNo

Medical School CMSRush Medical College Of Rush UniversityGraduated 2014

Enumeration DateMarch 26, 2014

Last NPPES UpdateJuly 21, 20223 updates tracked since enumeration

✔ NPI 1619394723 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

Licenses✔ Licensed in WI · 67231-20✔ Licensed in IL · 036-141738

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

N2950 STATE ROAD 67, Lake Geneva, WI 53147

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of North Dakota, Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher M. Tanner 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 ID5395045850

PECOS Enrollment IDI20170811002368, I20260304002901

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.

Medicare Billing Reassignments

Medicare enrollment records show Christopher Tanner reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Health System Corporation

Same address

Critical Access

N2950 STATE ROAD 67
Lake Geneva, WI 53147

Reassigned Medicare billing, Wisconsin and Illinois enrollments
Also billed through NPI 1598718603 (Wisconsin)
271 clinicians in this Medicare group

NPI 1699728550 (262) 245-0535

Mercy Harvard Hospital Inc

12 mi

Critical Access

901 GRANT ST
Harvard, IL 60033

Reassigned Medicare billing, Illinois enrollment
382 clinicians in this Medicare group

NPI 1427001445 (815) 943-5431

Rockford Health Physicians

29 mi

Multi-Specialty

8201 E RIVERSIDE BLVD
Rockford, IL 61114

Reassigned Medicare billing, Illinois enrollment
1,375 clinicians in this Medicare group

NPI 1043242886 (608) 314-2428

Lafayette County

79 mi

Mental Health (Including Community Mental Health Center)

15701 COUNTY ROAD K
Darlington, WI 53530

Reassigned Medicare billing, Wisconsin enrollment
Also billed through NPI 1689787954 (Wisconsin), NPI 1114987054 (Wisconsin)
53 clinicians in this Medicare group

NPI 1740273358 (608) 776-4800

Altru Health System

554 mi

Clinic/Center

1300 S COLUMBIA RD
Grand Forks, ND 58201

Reassigned Medicare billing, North Dakota enrollment
701 clinicians in this Medicare group

NPI 1043309552 (701) 780-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

12 services12 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Mercy Health System Corp

Acute Care Hospitals · Janesville, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520066

Location1000 Mineral Point AveJanesville, WI 53548 · Rock County

Emergency services Birthing friendly

Memorial Hospital Of Lafayette County

Critical Access Hospitals · Darlington, WI

OwnershipVoluntary non-profit - Other

CMS Certification Number521312

Location800 Clay StDarlington, WI 53530 · Lafayette County

Emergency services

Mercy Walworth Hospital & Medical Center

Critical Access Hospitals · Lake Geneva, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number521357

LocationN2950 State Road 67Lake Geneva, WI 53147 · Walworth County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53147 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

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

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.

Other Providers at the Same Location NPPES 20

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

JULIE A RICE LPC

Counselor (Professional)