MARK A THOMPSON M.D.
NPI 1538136361
Surgery in South Bend, IN

Active since March 01, 2006PECOS EnrolledAccepts Medicare Assignment
621 MEMORIAL DR STE 502, SOUTH BEND, IN 46601(574) 647-5875(574) 647-5787 Get Directions Write a Review

NPPES record last updated: December 1, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 1, 2025, Apr 6, 2023, Apr 6, 2021 and 2 more (5 updates tracked since 2018).

About Mark A Thompson M.d. NPPES

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

MARK A THOMPSON M.D. (NPI 1538136361) is an individual surgery provider in South Bend, Indiana, licensed in Indiana (01063692A) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital Of South Bend, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1538136361
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameMARK A THOMPSONCredential: M.D.
Location Address621 MEMORIAL DR STE 502South Bend, IN 46601-1075
Mailing Address3245 Health Dr Ste 100Granger, IN 46530-1380 · (574) 647-1840 · Fax (574) 237-6069
Fax(574) 647-5787
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2002
Enumeration DateMarch 1, 2006
Last NPPES UpdateDecember 1, 20255 updates tracked since enumeration
NPPES CertifiedDecember 1, 2025
NPI 1538136361 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License Licensed in IN · 01063692A
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
621 MEMORIAL DR STE 502, South Bend, IN 46601

Secondary Practice Locations 2

Location 11020 High RdBremen, IN 46506-1093 · Phone (574) 309-9967 · Fax (574) 309-9968
Location 2900 I StLA Porte, IN 46350-5533 · Phone (219) 324-1700

Other Identifiers 1

Medicaid200879410IN

Accepted 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

Mark A Thompson 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 ID6901992965
PECOS Enrollment IDI20071022000725
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 8

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 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.
49 services42 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
34 services20 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
34 services17 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
32 services32 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
25 services24 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.
19 services19 patients

Hospital Affiliations CMS Care Compare

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

Memorial Hospital Of South Bend

Acute Care Hospitals · South Bend, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150058
Location615 N Michigan StSouth Bend, IN 46601 · St. Joseph County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46601 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
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$66.48 typical visit price
range $16.93 – $132.22
Typical copayment $16.62 (range $4.23 – $33.05)
Most-billed visit code 99213
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 19

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

Surgery
621 MEMORIAL DR STE 502
SOUTH BEND, IN 46601
Nurse Practitioner (Family)
621 MEMORIAL DR STE 502
SOUTH BEND, IN 46601
Surgery (Trauma Surgery)
621 MEMORIAL DR STE 502
SOUTH BEND, IN 46601
Physician Assistant
621 MEMORIAL DR STE 502
SOUTH BEND, IN 46601
Surgery
621 MEMORIAL DR STE 502
SOUTH BEND, IN 46601
Physician Assistant
621 MEMORIAL DR STE 502
SOUTH BEND, IN 46601
Nurse Practitioner (Acute Care)
621 MEMORIAL DR STE 502
SOUTH BEND, IN 46601
Nurse Practitioner (Acute Care)
621 MEMORIAL DR STE 502
SOUTH BEND, IN 46601

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 Mark Thompson's NPI number?

The NPI number for Mark Thompson is 1538136361. It was assigned to this individual provider in the NPPES registry on March 1, 2006.

Where is Mark Thompson located?

Mark Thompson practices at 621 Memorial Dr Ste 502, South Bend, IN 46601. The listed phone number is (574) 647-5875.

What is Mark Thompson's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mark Thompson enrolled in Medicare?

Yes. Mark Thompson 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 Mark Thompson accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource list Mark Thompson 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 Mark Thompson affiliated with any hospitals?

According to CMS data, Mark Thompson is affiliated with Memorial Hospital Of South Bend.

When was this NPI record last updated?

The NPPES record for Mark Thompson was last updated on December 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.