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MARC J BERNSTEIN M.D.
NPI 1336110543
Internal Medicine - Gastroenterology in Saint Louis, MO

Active since January 27, 2006PECOS EnrolledAccepts Medicare Assignment
621 S NEW BALLAS RD STE 598A, SAINT LOUIS, MO 63141(314) 251-3380(314) 251-3385 Get Directions Write a Review

NPPES record last updated: April 2, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Marc J Bernstein M.d. NPPES

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

MARC J BERNSTEIN M.D. (NPI 1336110543) is an individual gastroenterology provider in Saint Louis, Missouri, licensed in Missouri (MO101070) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Washington University School Of Medicine (1992).

NPPES Registry Identity

NPI1336110543
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameMARC J BERNSTEINCredential: M.D.
Location Address621 S NEW BALLAS RD STE 598ASaint Louis, MO 63141-8262
Mailing Address1 Clerbrook LnSaint Louis, MO 63124-1202
Phone(314) 251-3380
Fax(314) 251-3385
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 1992
Enumeration DateJanuary 27, 2006
Last NPPES UpdateApril 2, 2019
✔ NPI 1336110543 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in MO · MO101070
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.
621 S NEW BALLAS RD STE 598A, Saint Louis, MO 63141
Open in Google Maps ↗

Other Identifiers 4

Other113769MO · Bc/bs Missouri
Medicaid209744317MO
Medicaid1336110543MO
OtherP01067267MO · Railroad Medicare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.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

Marc J Bernstein 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 ID8921049826
PECOS Enrollment IDI20090629000066
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 10

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.
105 services88 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.
100 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.
43 services43 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
40 services38 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.
33 services33 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.
31 services31 patients

Hospital Affiliations CMS Care Compare 4

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Mercy Hospital Washington

Acute Care Hospitals · Washington, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260052
Location901 East 5th StreetWashington, MO 63090 · Franklin County
Emergency services

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Mercy Hospital Lincoln

Critical Access Hospitals · Troy, MO
OwnershipGovernment - Local
CMS Certification Number261319
Location1000 East Cherry StreetTroy, MO 63379 · Lincoln County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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.

Other Providers at the Same Location NPPES

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

MRS. SONAL RAJ DOSHI ACNP
Nurse Practitioner (Acute Care)
621 S NEW BALLAS RD STE 598A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-3380

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 Marc Bernstein's NPI number?

The NPI number for Marc Bernstein is 1336110543. It was assigned to this individual provider in the NPPES registry on January 27, 2006.

Where is Marc Bernstein located?

Marc Bernstein practices at 621 S New Ballas Rd Ste 598A, Saint Louis, MO 63141. The listed phone number is (314) 251-3380.

What is Marc Bernstein's specialty?

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

Is Marc Bernstein enrolled in Medicare?

Yes. Marc Bernstein 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 Marc Bernstein accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list Marc Bernstein 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 Marc Bernstein affiliated with any hospitals?

According to CMS data, Marc Bernstein is affiliated with Mercy Hospital St Louis, Mercy Hospital Washington, Mercy Hospital South and Mercy Hospital Lincoln.

When was this NPI record last updated?

The NPPES record for Marc Bernstein was last updated on April 2, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.