Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

THOMAS J SAPHNER M.D.
NPI 1700970894
Internal Medicine - Medical Oncology in Two Rivers, WI

Q: What is Thomas Saphner's NPI number?

The NPI number for Thomas Saphner is 1700970894. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Q: What is Thomas Saphner's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Saphner was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days 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 October 03, 2006PECOS EnrolledAccepts Medicare Assignment

5300 MEMORIAL DR, TWO RIVERS, WI 54241(920) 793-6100 Get Directions Write a Review

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

Record update history: Sep 21, 2026, Nov 18, 2021 (2 updates tracked since 2021).

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About Thomas J Saphner M.d. NPPES

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

THOMAS J SAPHNER M.D. (NPI 1700970894) is an individual medical oncology provider in Two Rivers, Wisconsin, licensed in Wisconsin (28471) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Aurora Medical Ctr Manitowoc County, and maintains a secondary practice location in Green Bay.

NPPES Registry Identity

NPI1700970894

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameTHOMAS J SAPHNERCredential: M.D.

Location Address5300 MEMORIAL DRTwo Rivers, WI 54241-3923

Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250

Phone(920) 793-6100

Sole ProprietorNo

Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 1985

Enumeration DateOctober 3, 2006

Last NPPES UpdateSeptember 21, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 21, 2026

✔ NPI 1700970894 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

Licenses✔ Licensed in WI · 28471✔ Licensed in MI · 4301057902

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

5300 MEMORIAL DR, Two Rivers, WI 54241

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Secondary Practice Location 1

Location 11726 Shawano AveGreen Bay, WI 54303-3216 · Phone (920) 884-3135 · Fax (920) 884-3271

Other Identifiers 3

Medicaid102766162MI

Medicaid31483800WI

OtherTS057902MI · Bcbs Mi

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and more.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

Thomas J Saphner M.d. 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 ID1658384375

PECOS Enrollment IDI20101102001447

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 Thomas Saphner reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Aurora Health Care North, Inc.

0.2 mi

General Acute Care Hospital

5000 MEMORIAL DR
Two Rivers, WI 54241

Reassigned Medicare billing, Wisconsin enrollment
55 clinicians in this Medicare group

NPI 1477508687 (920) 794-5000

Aurora Medical Group, Inc.

26 mi

Clinic/Center

2414 KOHLER MEMORIAL DR
Sheboygan, WI 53081

Reassigned Medicare billing, Wisconsin enrollment
4,609 clinicians in this Medicare group

NPI 1174670244 (920) 457-4461

Aurora Health Care Central, Inc.

28 mi

General Acute Care Hospital

3400 UNION AVE
Sheboygan, WI 53081

Reassigned Medicare billing, Wisconsin enrollment
34 clinicians in this Medicare group

NPI 1922053107 (920) 802-2100

Baycare Aurora, LLC

29 mi

General Acute Care Hospital

2845 GREENBRIER RD
Green Bay, WI 54311

Reassigned Medicare billing, Wisconsin enrollment
394 clinicians in this Medicare group

NPI 1255387726 (920) 288-8000

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 4

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 high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

308 services107 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

42 services24 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

39 services39 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.

22 services20 patients

Hospital Affiliations CMS Care Compare 4

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

Aurora Medical Ctr Manitowoc County

Acute Care Hospitals · Two Rivers, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number520034

Location5000 Memorial DriveTwo Rivers, WI 54241 · Manitowoc County

Emergency services Birthing friendly

Aurora Health Care Central Inc

Acute Care Hospitals · Sheboygan, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520035

Location3400 Union AveSheboygan, WI 53081 · Sheboygan County

Emergency services Birthing friendly

Bay Area Medical Center

Acute Care Hospitals · Marinette, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520113

Location3003 University DrMarinette, WI 54143 · Marinette County

Emergency services Birthing friendly

Aurora Baycare Medical Ctr

Acute Care Hospitals · Green Bay, WI

5/5 CMS rating

OwnershipProprietary

CMS Certification Number520193

Location2845 Greenbrier RdGreen Bay, WI 54311 · Brown County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54241 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

$163.24 typical visit price

range $53.90 – $163.24

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

Most-billed visit code 99205

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.

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.

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

1 supplier11 claims330 services$7.65 avg. paid by Medicare

Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152

Other-Enteral and Parenteral · category OB006N

1 supplier11 claims5,038 services$0.39 avg. paid by Medicare

Temozolomide, oral, 5 mg J8700

Treatment-Treatment - Miscellaneous · category RX000N

2 suppliers17 claims876 services$0.86 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

2 suppliers11 claims11 services$18.85 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512

Treatment-Chemotherapy · category RH012N

2 suppliers13 claims13 services$12.58 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 20

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

JOANNA SMOGOLESKI

Nurse Practitioner