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Dr. Brett Erik Larsen , MD

Surgery • Flint, MI

Active NPI 1740552249 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

3500 Calkins Rd Ste A
Flint, MI 485323500

Call 8105157662 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

3500 Calkins Rd Ste A

Flint, MI 485323500

Telephone 8105157662
Fax 8103371479
Organization at the Same NPPES Address or Phone
Michael A Kia Do Pc Facility NPI 1184820441

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Flagstaff, AZ. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 2 distinct group names: Acute Care Surgery Medical Group Inc; Northern Arizona Healthcare Corporation. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2009

Medicare patients

234 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $36,975 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $29,466 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $29.52 in 2019

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2019.

Guide: How to read an Open Payments record

Years since graduation

17 years (graduated 2009)

CMS Doctors and Clinicians data list 2009 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2012

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Larsen has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Larsen as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Flint and Michigan

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 80% of clinicians listed under Surgery in Michigan (2024, 608 clinicians with data). Median for this group: 144. Middle half: 68 to 296.

Too few clinicians listed under Surgery in Flint have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 75% of clinicians listed under Surgery in Michigan (2024, 608 clinicians with data). Median for this group: $17,612. Middle half: $7,252 to $35,970.

Too few clinicians listed under Surgery in Flint have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 75% of clinicians listed under Surgery in Michigan (2024, 608 clinicians with data). Median for this group: $13,542. Middle half: $5,545 to $28,363.

Too few clinicians listed under Surgery in Flint have Medicare Part B data for 2024 to compare.

17 active clinicians are listed under Surgery with a practice address in Flint, MI (1,378 in Michigan).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Flint

17.6% of these 17 clinicians have the CMS telehealth indicator.

64.7% of these 17 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2019

Program year 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $29.52.

Manufacturer Payment Nature Product Type Amount ($)
Allergan Inc.
Food and Beverage
In-kind items and services
STRATTICE General $29.52

Source: CMS Open Payments, program year 2019, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
198 123 $113.16 $73.49
99238 Hospital discharge day management, 30 minutes or less
59 58 $158.34 $74.82
99291 Critical care, first 30-74 minutes
45 32 $537.36 $200.97
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
36 36 $186.28 $122.67
99284 Emergency department visit with moderate level of medical decision making
19 19 $236.16 $117.60
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
14 14 $248.14 $165.42

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-08-15
Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

License # reported to NPPES MI 4301111208

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.

Surgery - Surgical Critical Care

NUCC Taxonomy Code: 2086S0102X

License # reported to NPPES AZ 78132

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Michigan Department of Licensing and Regulatory Affairs.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - GENERAL SURGERY

Medicare Enrollment ID

I20250829002936

Enrollment State Jurisdiction

AZ

PECOS Control ID

1951686427

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Northern Arizona Healthcare Corporation

1215 N Beaver St, Flagstaff, AZ 860013126

Phone: 9287732249

Northern Arizona Healthcare Corporation

1200 N Beaver St, Flagstaff, AZ 860013118

Northern Arizona Healthcare Corporation

1200 N Beaver St, Flagstaff, AZ 860013118

Phone: 9282142920

Acute Care Surgery Medical Group Inc

50 N Perry St, Pontiac, MI 483422217

Phone: 2483385000

Secondary Practice Locations

1200 N Beaver St

Flagstaff, AZ 860013118

Phone: 9287732200

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
NPI 1477590842

Doctor of Osteopathic Medicine (D.O.)

Chelsea Smith

Colon & Rectal Surgery

NPI 1528450277

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

14 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 15, 2025

Surgery (license number reported to NPPES: AZ 78132)

📍
Updated Practice Location October 08, 2019

Registered at 3500 CALKINS RD STE A, FLINT, MI 485323500 (Tel: 8105157662)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 08, 2019

Student in an Organized Health Care Education/Training Program

âś…
NPI Profile Active March 08, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location March 08, 2017

Registered at 302 KENSINGTON AVE, FLINT, MI 485032044 (Tel: 8107628092)

📍
Updated Business Mailing Address March 08, 2017

Registered at 302 KENSINGTON AVE, FLINT, MI 485032044 (Tel: 8107628092)

👤
Provider Name / Credentials Updated March 08, 2017

Recorded as BRETT LARSEN, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 08, 2017

Surgery (license number reported to NPPES: MI 4301111208)

âś…
NPI Profile Active January 31, 2012

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) January 31, 2012

Registered at 2201 HEMPSTEAD TPKE, EAST MEADOW, NY 115541859 (Tel: 5165726703)

📍
Business Mailing Address (Initial Record) January 31, 2012

Registered at 147 MAIN ST, APT 3D, MINEOLA, NY 115013989

👤
Provider Name / Credentials (Initial Record) January 31, 2012

Recorded as BRETT LARSEN, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 31, 2012

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration January 31, 2012

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1740552249
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 31, 2012
Last Update: August 15, 2025
Sole Proprietor: Yes

Other Surgery Specialists in Flint

All Surgery Specialists in Flint

Mailing Address

302 Kensington Ave

Flint, MI 485032044

Phone: 8107628092

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.