MR. DIONISIO JAMES MARIANO MD
NPI 1649220229
Internal Medicine - Clinical Cardiac Electrophysiology in Appleton, WI

Q: What is Dionisio Mariano's NPI number?

The NPI number for Dionisio Mariano is 1649220229. It was assigned to this individual provider in the NPPES registry on May 12, 2006. The provider is also known as Mr. D James Mariano MD.

Q: What is Dionisio Mariano's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Q: When was this NPI record last updated?

The NPPES record for Dionisio Mariano was last updated on March 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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 May 12, 2006PECOS EnrolledAccepts Medicare Assignment

77.77/100

CMS Quality Rating

5045 W GRANDE MARKET DR, APPLETON, WI 54913(920) 886-9380(920) 886-9381 Get Directions Write a Review

NPPES record last updated: March 16, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Mr. Dionisio James Mariano Md NPPES

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

MR. DIONISIO JAMES MARIANO MD (NPI 1649220229) is an individual clinical cardiac electrophysiology provider in Appleton, Wisconsin, licensed in Wisconsin (33293-020) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Ascension Ne Wisconsin - St Elizabeth Campus, and is a graduate of Mayo Medical School (1985).

NPPES Registry Identity

NPI1649220229

Entity TypeIndividualMale

Primary Taxonomy207RC0001X

Provider Legal NameMR. DIONISIO JAMES MARIANOCredential: MD

Location Address5045 W GRANDE MARKET DRAppleton, WI 54913-8517

Mailing AddressBin 88040Milwaukee, WI 53288-0040 · (920) 886-9380 · Fax (920) 886-9381

Phone(920) 886-9380

Fax(920) 886-9381

Sole ProprietorNo

Medical School CMSMayo Medical SchoolGraduated 1985

Enumeration DateMay 12, 2006

Last NPPES UpdateMarch 16, 2020

NPPES CertifiedMarch 16, 2020

✔ NPI 1649220229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RC0001X

License✔ Licensed in WI · 33293-020

Definition

A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.

Also ListedInternal MedicineTaxonomy 207R00000X · License 33293-020 (WI)

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 33293-020 (WI)

5045 W GRANDE MARKET DR, Appleton, WI 54913

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Other Names 1

Professional Name (2)Mr. D James Mariano Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Dean Health Plan, Network Health.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

Mr. Dionisio James Mariano 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 ID4688587694

PECOS Enrollment IDI20040130001002

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 Dionisio Mariano reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Heart And Vascular Of Wisconsin, Sc

Same address

Cardiovascular Disease

5045 W GRANDE MARKET DR
Appleton, WI 54913

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

NPI 1053884478 (920) 886-9380

Ascension Medical Group-Fox Valley Wisconsin, Inc

Same address

Cardiovascular Disease

5045 W GRANDE MARKET DR
Appleton, WI 54913

Reassigned Medicare billing, Wisconsin enrollment
Also billed through NPI 1730126392 (Wisconsin)
32 clinicians in this Medicare group

NPI 1831890177 (920) 886-9380

Ascension Calumet Hospital, Inc

32 mi

Critical Access

614 MEMORIAL DR
Chilton, WI 53014

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

NPI 1376541748 (920) 849-2386

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 23

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.

350 services238 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 93296

This procedure involves remotely monitoring your pacemaker or implantable defibrillator system. Over a 90-day period, we check the device's performance and your heart's activity. This helps ensure the device is functioning properly and providing the best possible support for your heart health.

309 services100 patients

Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days 93295

This procedure involves remotely monitoring your implantable defibrillator system, which can have single, dual, or multiple leads. Over a period of up to 90 days, the system's performance is evaluated to ensure it's working properly and providing the necessary heart rhythm support.

306 services97 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

157 services114 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.

54 services51 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

51 services42 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

45 services35 patients

Programming of single lead implantable defibrillator system 93282

Programming of a single lead implantable defibrillator system involves setting up and adjusting a device implanted in your body. This device helps regulate your heartbeat. It can detect irregular heart rhythms and provide corrective electric shocks to restore a normal heartbeat.

32 services25 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

27 services27 patients

Programming of dual lead implantable defibrillator system 93283

Programming of a dual lead implantable defibrillator system involves adjusting settings on a device implanted in your chest. This device monitors your heart rhythm and delivers electrical pulses to correct irregular heartbeats, helping maintain a healthy heart rhythm.

25 services22 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

23 services21 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

23 services23 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

23 services23 patients

Liver enzyme (sgpt), level 84460

A liver enzyme (SGPT) level test is a blood test that checks the health of your liver. SGPT is an enzyme found in your liver cells. If your liver is damaged or inflamed, SGPT can leak into your bloodstream, raising the enzyme level. This test helps identify liver diseases early.

20 services17 patients

Programming of multiple lead implantable defibrillator system 93284

Programming of a multiple lead implantable defibrillator system involves adjusting settings on your implanted device to help control irregular heart rhythms. The process is non-invasive and helps ensure optimal device performance for maintaining heart health.

20 services18 patients

Magnesium level 83735

A magnesium level test is a simple blood test that measures the amount of magnesium in your body. Magnesium is a crucial mineral that helps your nerves, muscles, and heart function properly. The test can help detect health conditions like kidney disease or malnutrition.

19 services16 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

19 services16 patients

Heart rhythm recording continous external ekg over more than 48 hours up to 7 days 93242

This procedure involves wearing a device, an external EKG, for up to 7 days to continuously monitor your heart rhythm. It helps detect irregularities that may not occur during a standard EKG. The device is non-invasive and safe.

19 services19 patients

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.

16 services15 patients

Electrocardiogram (ecg) 2-day continuous with review and report by health care professional 93224

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. In a 2-day continuous ECG, sensors attached to your chest monitor your heart's rhythm over 48 hours. A healthcare professional then reviews the data to identify any irregularities.

13 services11 patients

Heart rhythm recording of continous external ekg over 8-15 days 93246

A heart rhythm recording is a non-invasive procedure where a small device, attached externally, monitors your heart's electrical activity for 8-15 days. It helps detect irregular heart rhythms, assess heart rate, and guide treatment decisions. It's safe, painless, and can be done during normal daily activities.

12 services12 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

12 services12 patients

Insertion of pacemaker and upper and lower heart chamber electrode 33208

A pacemaker insertion is a procedure where a small device, called a pacemaker, is implanted under your skin. This device uses electrical pulses to prompt the heart to beat at a normal rate. Electrodes are placed in the upper and lower chambers of your heart to help regulate your heartbeat.

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.

Ascension NE Wisconsin - St Elizabeth Campus

Acute Care Hospitals · Appleton, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520009

Location1506 S Oneida StAppleton, WI 54915 · Outagamie County

Emergency services Birthing friendly

Thedacare Regional Med Ctr - Neenah

Acute Care Hospitals · Neenah, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520045

Location130 2nd StNeenah, WI 54956 · Winnebago County

Emergency services Birthing friendly

Thedacare Regional Medical Center - Appleton Inc

Acute Care Hospitals · Appleton, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520160

Location1818 N Meade StAppleton, WI 54911 · Outagamie County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54913 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

$123.69 typical visit price

range $53.90 – $163.24

Typical copayment $30.92 (range $13.47 – $40.81)

Most-billed visit code 99204

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.77/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

77.47

Promoting Interoperability

Improvement Activities

Cost

63.8

Other Providers at the Same Location NPPES 19

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

KATIE GEISER NP

Nurse Practitioner