DR. MARIE DENISE ALFONSO GUANZON MD
NPI 1780664631
Internal Medicine in St Cloud, MN

Q: What is Marie Denise Guanzon's NPI number?

The NPI number for Marie Denise Guanzon is 1780664631. It was assigned to this individual provider in the NPPES registry on January 18, 2006.

Q: What is Marie Denise Guanzon's specialty?

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

Active since January 18, 2006PECOS EnrolledAccepts Medicare Assignment

1200 SIXTH AVE N, CENTRACARE CLINIC, ST CLOUD, MN 56303(701) 530-7000(701) 530-8842 Get Directions Write a Review

NPPES record last updated: April 28, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Marie Denise Alfonso Guanzon Md NPPES

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

DR. MARIE DENISE ALFONSO GUANZON MD (NPI 1780664631) is an individual internal medicine provider in St Cloud, Minnesota, licensed in Minnesota (53336) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS, is affiliated with St Cloud Hospital, and is a graduate of Other (1995).

NPPES Registry Identity

NPI1780664631

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. MARIE DENISE ALFONSO GUANZONCredential: MD

Location Address1200 SIXTH AVE N, CENTRACARE CLINICSt Cloud, MN 56303-2735

Mailing Address1200 Sixth Ave N, Centracare ClinicSt Cloud, MN 56303-2735 · (701) 530-7000 · Fax (701) 530-8842

Phone(701) 530-7000

Fax(701) 530-8842

Sole ProprietorNo

Medical School CMSOtherGraduated 1995

Enumeration DateJanuary 18, 2006

Last NPPES UpdateApril 28, 2011

✔ NPI 1780664631 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MN · 53336

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 ListedAllergy & ImmunologyTaxonomy 207K00000X · License 53336 (MN)

Also ListedHospitalistTaxonomy 208M00000X · License 9430 (ND)

1200 SIXTH AVE N, St Cloud, MN 56303

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Other Identifiers 4

Medicare UPINH95615ND

OtherP00327845ND · Rr Medicare

Medicaid13077ND

Medicare PINN712041ND

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners.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

Dr. Marie Denise Alfonso Guanzon 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 ID446163117

PECOS Enrollment IDI20101110000133

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 Reassignment

Medicare enrollment records show Marie Denise Guanzon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Centracare Clinic

Same address

Primary Care

1200 6TH AVE N
Saint Cloud, MN 56303

Reassigned Medicare billing, Minnesota enrollment
1,051 clinicians in this Medicare group

NPI 1538696323 (320) 252-5131

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 13

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.

372 services214 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.

191 services191 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.

155 services113 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

67 services67 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.

66 services28 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.

51 services46 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.

35 services23 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.

33 services32 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.

27 services21 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.

26 services26 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

25 services25 patients

Removal of impacted ear wax by washing 69209

Impacted ear wax removal by washing, also known as ear irrigation, involves using a pressurized flow of water to break up and dislodge the ear wax. This safe procedure helps restore normal hearing and relieve discomfort caused by the blockage.

19 services17 patients

Anticoagulant management of patient taking warfarin 93793

Anticoagulant management with warfarin involves monitoring and adjusting your medication to prevent blood clots while minimizing the risk of bleeding. Regular blood tests measure your response to warfarin, helping adjust your dose if necessary. It's crucial to maintain a consistent diet and promptly report any changes in your health.

16 services14 patients

Hospital Affiliations CMS Care Compare 2

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

St Cloud Hospital

Acute Care Hospitals · Saint Cloud, MN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240036

Location1406 6th Ave NorthSaint Cloud, MN 56303 · Stearns County

Emergency services Birthing friendly

Centracare Health - Monticello

Critical Access Hospitals · Monticello, MN

OwnershipVoluntary non-profit - Private

CMS Certification Number241362

Location1013 Hart BoulevardMonticello, MN 55362 · Wright County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 56303 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

$127.61 typical visit price

range $56.00 – $168.28

Typical copayment $31.90 (range $14.00 – $42.07)

Most-billed visit code 99204

Established Patient

$98.61 typical visit price

range $18.32 – $138.04

Typical copayment $24.65 (range $4.58 – $34.51)

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 9

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

20 suppliers67 claims146 services$6.07 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

12 suppliers24 claims27 services$1.05 avg. paid by Medicare

Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314

DME-Orthotic Devices · category DF000N

1 supplier11 claims11 services$5.80 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$40.02 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

4 suppliers13 claims78 services$2.31 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 supplier14 claims6,499 services$0.28 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.

DR. DAVID G BENDITT MD

Internal Medicine (Cardiovascular Disease)

1200 SIXTH AVE N, CENTRACARE CLINIC
ST CLOUD, MN 56303

Stearns County (320) 252-5131

TROY A PAYNE MD

Internal Medicine (Sleep Medicine)

1200 SIXTH AVE N, CENTRA CARE CLINIC
ST CLOUD, MN 56303

Stearns County (320) 251-0726

DR. CHRISTOPHER WILLIAM WIELAND MD

Hospitalist

1200 SIXTH AVE N, CENTRACARE CLINIC
ST CLOUD, MN 56303

Stearns County (320) 251-2700

COURTNEY LYNN BREVER PA-C

Physician Assistant

1200 SIXTH AVE N
ST CLOUD, MN 56303

Stearns County (320) 656-7020

ALYSSA MARIE MONSON RD LD

Dietitian, Registered

1200 SIXTH AVE N, CENTRACARE CLINIC
ST CLOUD, MN 56303

Stearns County (320) 252-3342

DR. JESSIE LEE KERNS ROSKE MD

Hospitalist

1200 SIXTH AVE N, CENTRACARE CLINIC
ST CLOUD, MN 56303

Stearns County (320) 251-2700

PAUL L MAREK MD, FHM

Hospitalist

1200 SIXTH AVE N
ST CLOUD, MN 56303

Stearns County (320) 251-2700

DR. JEFFREY S GERDES MD

Neurological Surgery

1200 SIXTH AVE N, CENTRACARE CLINIC RIVER CAMPUS/NEROSURGERY
ST CLOUD, MN 56303

Stearns County (320) 259-1405

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 Marie Denise Guanzon's NPI number?

The NPI number for Marie Denise Guanzon is 1780664631. It was assigned to this individual provider in the NPPES registry on January 18, 2006.

Where is Marie Denise Guanzon located?

Marie Denise Guanzon practices at 1200 Sixth Ave N Centracare Clinic, St Cloud, MN 56303. The listed phone number is (701) 530-7000.

What is Marie Denise Guanzon's specialty?

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

Is Marie Denise Guanzon enrolled in Medicare?

Yes. Marie Denise Guanzon 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.

Which organization bills Medicare for Marie Denise Guanzon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marie Denise Guanzon reassigns Medicare benefits to Centracare Clinic (Saint Cloud, MN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marie Denise Guanzon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marie Denise Guanzon accept?

Health plans from HealthPartners list Marie Denise Guanzon 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 Marie Denise Guanzon affiliated with any hospitals?

According to CMS data, Marie Denise Guanzon is affiliated with St Cloud Hospital and Centracare Health - Monticello.

When was this NPI record last updated?

The NPPES record for Marie Denise Guanzon was last updated on April 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.