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Dr. Ruth A Marx , DDS

Dentist - General Practice • Appleton, WI

Active NPI 1164458089 Individual Practitioner Female Practitioner
Practice location in NPPES

4660 W College Ave
Appleton, WI 549138507

Call 9207300345 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

4660 W College Ave

Appleton, WI 549138507

Telephone 9207300345

30-day fills

29 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$151 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $30.59 in 2020

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2020.

Guide: How to read an Open Payments record

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Marx has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Marx as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Appleton and Wisconsin

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

Close to the middle for clinicians listed under Dentist - General Practice in Appleton, WI (2024, 38 clinicians with data). Median for this group: 31. Middle half: 18 to 61.

Fewer Part D prescriptions than 60% of clinicians listed under Dentist - General Practice in Wisconsin (2024, 978 clinicians with data). Median for this group: 38. Middle half: 20 to 69.

Part D drug cost

Close to the middle for clinicians listed under Dentist - General Practice in Appleton, WI (2024, 38 clinicians with data). Median for this group: $130. Middle half: $70 to $292.

Close to the middle for clinicians listed under Dentist - General Practice in Wisconsin (2024, 978 clinicians with data). Median for this group: $116. Middle half: $58 to $250.

79 active clinicians are listed under Dentist - General Practice with a practice address in Appleton, WI (2,308 in Wisconsin).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Appleton

0% of these 79 clinicians have the CMS telehealth indicator.

0% of these 79 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2020), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2020

Program year 2020 (payments made January 1 – December 31, 2020): fewer than 11 records totaling $30.59.

Manufacturer Payment Nature Product Type Amount ($)
Colgate Oral Pharmaceuticals, Inc.
Education
In-kind items and services
— General $30.59

Source: CMS Open Payments, program year 2020, released June 30, 2026.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Penicillin V Potassium Penicillin V Potassium 15 150 $126.59 15
Amoxicillin Amoxicillin 14 67 $24.48 11

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Dentist - General Practice Primary Specialty

NUCC Taxonomy Code: 1223G0001X

License # reported to NPPES WI 4743

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Wisconsin Department of Safety and Professional Services.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - DENTIST

Medicare Enrollment ID

I20200220003093

Enrollment State Jurisdiction

WI

PECOS Control ID

1658679659

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Not Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

10 listed
Dr. David Anderson , DDS, MD

Dentist - Oral and Maxillofacial Surgery

NPI 1619061546

Doctor of Dental Surgery, Doctor of Medicine (M.D.)

Dr. Xiaoqi Chen , DDS

Dentist - General Practice

NPI 1053801944

Doctor of Dental Surgery

Dr. Fred Cheney , DDS

Dentist - General Practice

NPI 1023048550

Doctor of Dental Surgery

Dr. Zachery Finnegan , DDS

Dentist - General Practice

NPI 1386225985

Doctor of Dental Surgery

Naa Norkor Hammond

Dentist - General Practice

NPI 1003261462
Dr. Richard Kling , DDS

Dentist - General Practice

NPI 1275569196

Doctor of Dental Surgery

Career & Practice History

NPI enumerated June 23, 2006.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

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NPI Administrative Meta

NPI Number: 1164458089
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 23, 2006
Last Update: July 08, 2007
Sole Proprietor: No

Other Dentist - General Practices in Appleton

All Dentist - General Practices in Appleton

Mailing Address

4660 W College Ave

Appleton, WI 549138507

Phone: 9207300345

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.