STANLEY VRIEZELAAR M.D.
NPI 1649252552
Internal Medicine in Saint Louis, MO

Q: What is Stanley Vriezelaar's NPI number?

The NPI number for Stanley Vriezelaar is 1649252552. It was assigned to this individual provider in the NPPES registry on November 16, 2005.

Q: What is Stanley Vriezelaar's specialty?

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

Active since November 16, 2005PECOS Enrolled

1027 BELLEVUE AVE, SUITE 107, SAINT LOUIS, MO 63117(314) 645-3743(314) 647-7967 Get Directions Write a Review

NPPES record last updated: October 1, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Stanley Vriezelaar M.d. NPPES

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

STANLEY VRIEZELAAR M.D. (NPI 1649252552) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (R4D79) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649252552

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameSTANLEY VRIEZELAARCredential: M.D.

Location Address1027 BELLEVUE AVE, SUITE 107Saint Louis, MO 63117-1851

Mailing AddressPo Box 23340Saint Louis, MO 63156-3340 · (314) 645-3743 · Fax (314) 647-7967

Phone(314) 645-3743

Fax(314) 647-7967

Sole ProprietorNo

Enumeration DateNovember 16, 2005

Last NPPES UpdateOctober 1, 2012

✔ NPI 1649252552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MO · R4D79

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.

1027 BELLEVUE AVE, Saint Louis, MO 63117

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Other Identifiers 11

Other0400407MO · Uhc

OtherA13085MO · Mercy

Other000000010041MO · Essence

Other127499MO · Ghp

Other25674MO · Bcbs

Other4032391MO · Aetna

Medicare UPINA13085MO

Medicare PIN042011188MO

Other101286MO · Healthlink

Medicare PIN328402451MO

Medicare PIN110076413MO

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stanley Vriezelaar M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Stanley Vriezelaar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

American Multispecialty Group Inc.

11 mi

Internal Medicine

555 MARYVILLE UNIVERSITY DR STE 240
Saint Louis, MO 63141

Reassigned Medicare billing, Missouri enrollment
119 clinicians in this Medicare group

NPI 1972559532 (314) 851-1000

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 22

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.

321 services167 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

267 services186 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

150 services145 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

132 services93 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

124 services119 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

102 services95 patients

Urine microalbumin (protein) level 82043

The urine microalbumin level test measures the amount of a protein called albumin in your urine. This test helps to detect early signs of kidney damage. High levels of albumin may suggest your kidneys aren't functioning properly. It's a simple, non-invasive test that involves providing a urine sample.

63 services57 patients

Creatinine level to test for kidney function or muscle injury 82570

A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.

63 services57 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.

63 services45 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.

63 services63 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.

58 services47 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.

57 services52 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.

36 services36 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test 85027

A complete blood cell count (CBC) is an automated test that measures different components of the blood, including red cells, white cells, and platelets. It helps assess overall health, detect disorders like anemia or infection, and monitor medical treatments.

28 services26 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

28 services21 patients

Prostate cancer screening; prostate specific antigen test (psa) G0103

Prostate cancer screening involves a simple blood test known as the Prostate Specific Antigen (PSA) test. This test measures the level of PSA in your blood. Higher than normal levels can be an early indication of prostate issues, including cancer. It's a key tool in early detection.

24 services24 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

19 services14 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

16 services14 patients

Vitamin d-3 level 82306

A Vitamin D-3 level test measures the amount of Vitamin D-3, a crucial nutrient, in your body. This test helps identify if your levels are too low or too high. Low levels may lead to bone weakness, while high levels could harm your kidneys. It's a simple blood test.

12 services11 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

12 services12 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.

12 services12 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63117 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

$128.28 typical visit price

range $55.65 – $169.38

Typical copayment $32.07 (range $13.91 – $42.34)

Most-billed visit code 99204

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

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 10

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

12 suppliers31 claims102 services$5.91 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

6 suppliers14 claims24 services$1.05 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

5 suppliers17 claims17 services$35.61 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

5 suppliers18 claims18 services$53.45 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

5 suppliers13 claims13 services$15.28 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

4 suppliers16 claims91 services$1.90 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. JOHN W. KILGORE M.D.

Internal Medicine (Cardiovascular Disease)

1027 BELLEVUE AVE, SUITE 200
SAINT LOUIS, MO 63117

St. Louis County (314) 645-6450

THOMAS J. KIRISITS, D.P.M., P.C.

Podiatrist (Foot & Ankle Surgery)

1027 BELLEVUE AVE, SUITE 145
SAINT LOUIS, MO 63117

St. Louis County (314) 644-6663

MS. DANA READ MS, CCC-SLP; CBIS-T

Speech-Language Pathologist

1027 BELLEVUE AVE, SUITE 15
SAINT LOUIS, MO 63117

St. Louis County (314) 768-5375

JORDAN N FANNING MS, CCC-SLP

Speech-Language Pathologist

1027 BELLEVUE AVE
RICHMOND HEIGHTS, MO 63117

St. Louis County (314) 768-5202

DR. RICHARD B WHITING M.D.

Internal Medicine (Cardiovascular Disease)

1027 BELLEVUE AVE, SUITE 200
SAINT LOUIS, MO 63117

St. Louis County (314) 645-6450

MIEASHIA JONES

Counselor

1027 BELLEVUE AVE, 200
RICHMOND HEIGHTS, MO 63117

St. Louis County (314) 768-8000

LAUREN FYALKA PT, DPT

Physical Therapist

1027 BELLEVUE AVE
RICHMOND HEIGHTS, MO 63117

St. Louis County (314) 768-5375

LINDSAY NOESEN DPT

Physical Therapist

1027 BELLEVUE AVE, SUITE 15
RICHMOND HEIGHTS, MO 63117

St. Louis County (314) 768-5375

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 Stanley Vriezelaar's NPI number?

The NPI number for Stanley Vriezelaar is 1649252552. It was assigned to this individual provider in the NPPES registry on November 16, 2005.

Where is Stanley Vriezelaar located?

Stanley Vriezelaar practices at 1027 Bellevue Ave Suite 107, Saint Louis, MO 63117. The listed phone number is (314) 645-3743.

What is Stanley Vriezelaar's specialty?

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

Is Stanley Vriezelaar enrolled in Medicare?

Yes. Stanley Vriezelaar is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stanley Vriezelaar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stanley Vriezelaar reassigns Medicare benefits to American Multispecialty Group Inc. (Saint Louis, MO). 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 Stanley Vriezelaar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stanley Vriezelaar was last updated on October 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.