DR. KAREN A THORNBURG MD
NPI 1003938119
Internal Medicine in Muskegon, MI

Active since April 06, 2007PECOS EnrolledAccepts Medicare Assignment
2700 BAKER ST FL 3, MUSKEGON, MI 49444(231) 737-1335(231) 737-0534 Get Directions Write a Review

NPPES record last updated: January 2, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 2, 2022, May 30, 2019, Oct 15, 2018 and 1 more (4 updates tracked since 2018).

About Dr. Karen A Thornburg Md NPPES

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

DR. KAREN A THORNBURG MD (NPI 1003938119) is an individual internal medicine provider in Muskegon, Michigan, licensed in Michigan (4301087767) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Trinity Health Muskegon Hospital, and maintains a secondary practice location in Muskegon.

NPPES Registry Identity

NPI1003938119
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. KAREN A THORNBURGCredential: MD
Location Address2700 BAKER ST FL 3Muskegon, MI 49444
Mailing Address2700 Baker St Fl 3Muskegon, MI 49444-2157 · (231) 737-1335
Fax(231) 737-0534
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateApril 6, 2007
Last NPPES UpdateJanuary 2, 20224 updates tracked since enumeration
NPPES CertifiedJanuary 2, 2022
NPI 1003938119 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MI · 4301087767
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.

2700 BAKER ST FL 3, Muskegon, MI 49444

Secondary Practice Location 1

Location 12700 Baker St Fl 3Muskegon, MI 49444 · Phone (231) 737-1335 · Fax (231) 737-0534

Other Identifiers 1

Medicaid1003938119MI

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

Dr. Karen A Thornburg Md 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 ID3375697337
PECOS Enrollment IDI20090811000328
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 2

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.

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.
74 services45 patients
Blood glucose (sugar) level 82947
A blood glucose level test measures the amount of sugar in your blood. It's often used to monitor and manage conditions like diabetes. High or low levels can indicate a health issue. The test is usually done by pricking your finger for a small blood sample.
33 services21 patients

Hospital Affiliations CMS Care Compare 2

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

Trinity Health Muskegon Hospital

Acute Care Hospitals · Muskegon, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230066
Location1500 E Sherman BlvdMuskegon, MI 49441 · Muskegon County
Emergency services Birthing friendly

Mercy Health Lakeshore Campus

Critical Access Hospitals · Shelby, MI
OwnershipVoluntary non-profit - Private
CMS Certification Number231320
Location72 South State StreetShelby, MI 49455 · Oceana County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49444 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
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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 7

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
6 suppliers20 claims53 services$6.09 avg. paid by Medicare
Canister, disposable, used with suction pump, each A7000
DME-Other DME · category DE000N
2 suppliers11 claims29 services$7.10 avg. paid by Medicare
Water collection device, used with large volume nebulizer A7012
DME-Other DME · category DE000N
2 suppliers11 claims22 services$2.51 avg. paid by Medicare
Tracheostomy tube collar/holder, each A7526
DME-Orthotic Devices · category DF000N
2 suppliers11 claims265 services$3.27 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers20 claims20 services$15.87 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers23 claims23 services$88.35 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.

Social Worker
2700 BAKER ST FL 3
MUSKEGON, MI 49444
Family Medicine
2700 BAKER ST FL 3
MUSKEGON, MI 49444
Social Worker (Clinical)
2700 BAKER ST FL 3
MUSKEGON, MI 49444
Community Health Worker
2700 BAKER ST FL 3
MUSKEGON, MI 49444
Dental Hygienist
2700 BAKER ST FL 3
MUSKEGON, MI 49444
Counselor
2700 BAKER ST FL 3
MUSKEGON, MI 49444
Clinic/Center (Federally Qualified Health Center (FQHC))
2700 BAKER ST FL 3
MUSKEGON, MI 49444
Social Worker
2700 BAKER ST FL 3
MUSKEGON, MI 49444

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 Karen Thornburg's NPI number?

The NPI number for Karen Thornburg is 1003938119. It was assigned to this individual provider in the NPPES registry on April 6, 2007.

Where is Karen Thornburg located?

Karen Thornburg practices at 2700 Baker St Fl 3, Muskegon, MI 49444. The listed phone number is (231) 737-1335.

What is Karen Thornburg's specialty?

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

Is Karen Thornburg enrolled in Medicare?

Yes. Karen Thornburg 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 Karen Thornburg accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community, Oscar Insurance Company and Priority Health list Karen Thornburg 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 Karen Thornburg affiliated with any hospitals?

According to CMS data, Karen Thornburg is affiliated with Trinity Health Muskegon Hospital and Mercy Health Lakeshore Campus.

When was this NPI record last updated?

The NPPES record for Karen Thornburg was last updated on January 2, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.