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

DR. THOMAS JENNINGS MAUST M.D.
NPI 1629396619
Internal Medicine - Gastroenterology in St. Louis Park, MN

Q: What is Thomas Maust's NPI number?

The NPI number for Thomas Maust is 1629396619. It was assigned to this individual provider in the NPPES registry on May 14, 2010.

Q: What is Thomas Maust's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Maust was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 May 14, 2010PECOS EnrolledAccepts Medicare Assignment

6500 EXCELSIOR BLVD, PARK NICOLLET CLINIC, ST. LOUIS PARK, MN 55426(952) 993-3246(952) 993-3010 Get Directions Write a Review

NPPES record last updated: August 3, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 3, 2026, Jul 21, 2022, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

On this page

About Dr. Thomas Jennings Maust M.d. NPPES

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

DR. THOMAS JENNINGS MAUST M.D. (NPI 1629396619) is an individual gastroenterology provider in St. Louis Park, Minnesota, licensed in Minnesota (55118) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS, is affiliated with Park Nicollet Methodist Hospital, and is a graduate of University Of Minnesota Medical School (2010).

NPPES Registry Identity

NPI1629396619

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. THOMAS JENNINGS MAUSTCredential: M.D.

Location Address6500 EXCELSIOR BLVD, PARK NICOLLET CLINICSt. Louis Park, MN 55426

Mailing AddressPo Box 9104Minneapolis, MN 55480-9104 · (952) 993-3246 · Fax (952) 993-3010

Phone(952) 993-3246

Fax(952) 993-3010

Sole ProprietorYes

Medical School CMSUniversity Of Minnesota Medical SchoolGraduated 2010

Enumeration DateMay 14, 2010

Last NPPES UpdateAugust 3, 20264 updates tracked since enumeration

NPPES CertifiedAugust 3, 2026

✔ NPI 1629396619 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MN · 55118

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

6500 EXCELSIOR BLVD, St. Louis Park, MN 55426

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Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas Jennings Maust 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 ID9133371891

PECOS Enrollment IDI20121204000494

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.

Areas of Expertise CMS Part B claims 14

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.

Injection, midazolam hydrochloride, per 1 mg J2250

Midazolam hydrochloride is a medication injected to help you relax or sleep before surgery or certain medical procedures. It works by calming the brain and nerves. It's given in small doses, measured in milligrams (mg).

137 services38 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

96 services95 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

94 services92 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.

42 services31 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.

36 services24 patients

Injection, fentanyl citrate, 0.1 mg J3010

Fentanyl citrate is a potent pain medication administered via injection. The 0.1 mg dosage is used to manage severe pain conditions. It works by blocking pain signals to the brain. It's crucial to follow the dosage instructions to prevent potential side effects.

36 services34 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

35 services32 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

34 services34 patients

33 services32 patients

Infusion, normal saline solution , 1000 cc J7030

An infusion of normal saline solution, 1000 cc, is a common medical procedure. It involves introducing a saltwater solution into your bloodstream via an intravenous (IV) line. This helps to hydrate your body, correct electrolyte imbalances, and deliver medications if needed.

33 services33 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

25 services25 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

20 services20 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

17 services16 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

16 services11 patients

Hospital Affiliations CMS Care Compare

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

Park Nicollet Methodist Hospital

Acute Care Hospitals · Saint Louis Park, MN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240053

Location6500 Excelsior BlvdSaint Louis Park, MN 55426 · Hennepin County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55426 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.

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.

NANCY COLE NELSON M.D.

Obstetrics & Gynecology

6500 EXCELSIOR BLVD
ST LOUIS PARK, MN 55426

Hennepin County (952) 993-3282

DR. KATIE LYNN ANDRINAS MD, MPH

Obstetrics & Gynecology

6500 EXCELSIOR BLVD
ST LOUIS PARK, MN 55426

Hennepin County (952) 993-3282

CARA HOULE MD

Internal Medicine

6500 EXCELSIOR BLVD
ST LOUIS PARK, MN 55426

Hennepin County (952) 993-5000

JANET GRAYSON MD

Internal Medicine

6500 EXCELSIOR BLVD
ST LOUIS PARK, MN 55426

Hennepin County (952) 993-6600

JEFFREY J SHULTZ

Internal Medicine (Cardiovascular Disease)

6500 EXCELSIOR BLVD, PARK NICOLLET CLINIC - HEART & VASCULAR CENTER
ST LOUIS PARK, MN 55426

Hennepin County (952) 993-3246

MARY BETH JOHNSON OTR/L

Occupational Therapist

6500 EXCELSIOR BLVD
ST LOUIS PARK, MN 55426

Hennepin County (952) 993-6087

MARY KATHERINE KOSANDA P.T.

Physical Therapist

6500 EXCELSIOR BLVD
ST LOUIS PARK, MN 55426

Hennepin County (952) 993-6014

JENNIFER A DEUTZ P.T.

Physical Therapist

6500 EXCELSIOR BLVD
ST LOUIS PARK, MN 55426

Hennepin County (952) 993-5900

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 Thomas Maust's NPI number?

The NPI number for Thomas Maust is 1629396619. It was assigned to this individual provider in the NPPES registry on May 14, 2010.

Where is Thomas Maust located?

Thomas Maust practices at 6500 Excelsior Blvd Park Nicollet Clinic, St. Louis Park, MN 55426. The listed phone number is (952) 993-3246.

What is Thomas Maust's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Thomas Maust enrolled in Medicare?

Yes. Thomas Maust 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.

What insurance does Thomas Maust accept?

Health plans from HealthPartners and Medica list Thomas Maust 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 Thomas Maust affiliated with any hospitals?

According to CMS data, Thomas Maust is affiliated with Park Nicollet Methodist Hospital.

When was this NPI record last updated?

The NPPES record for Thomas Maust was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.