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

ANN KOSS DO
NPI 1467488759
Radiology - Diagnostic Radiology in Ludington, MI

Active since June 25, 2006PECOS EnrolledAccepts Medicare Assignment
84.16/100
CMS Quality Rating
1 N ATKINSON DR, LUDINGTON, MI 49431(231) 845-2255 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Aug 30, 2016 (2 updates tracked since 2016).

About Ann Koss Do NPPES

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

ANN KOSS DO (NPI 1467488759) is an individual diagnostic radiology provider in Ludington, Michigan, licensed in Michigan (AK011095) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Spectrum Health United Hospital, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (1990).

NPPES Registry Identity

NPI1467488759
Entity TypeIndividualFemale
Primary Taxonomy2085R0202X
Provider Legal NameANN KOSSCredential: DO
Location Address1 N ATKINSON DRLudington, MI 49431-1906
Mailing Address3264 N Evergreen Dr NeGrand Rapids, MI 49525-9746 · (616) 353-7339 · Fax (616) 361-5828
Sole ProprietorNo
Medical School CMSAt Still University Of Health Sciences, College Of Osteo Med, KirksvilleGraduated 1990
Enumeration DateJune 25, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1467488759 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License Licensed in MI · AK011095
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
1 N ATKINSON DR, Ludington, MI 49431

Other Identifiers 2

Other300E310060MI · Blue Cross
Medicaid4250478MI

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

Ann Koss Do 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 ID345289849
PECOS Enrollment IDI20100707000215
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 27

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.

Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
494 services494 patients
Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
494 services494 patients
Dxa bone density measurement of hip, pelvis, spine including spine fracture assessment 77085
A DXA bone density measurement is a non-invasive scan that helps assess the strength of your bones, specifically in the hip, pelvis, and spine areas. It can detect early signs of osteoporosis and evaluate fracture risk. This test uses low-dose X-rays for accurate results.
98 services98 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
91 services85 patients
Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279
Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.
42 services40 patients
Diagnostic mammography of 1 breast 77065
Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.
38 services31 patients

Hospital Affiliations CMS Care Compare 5

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

Spectrum Health United Hospital

Acute Care Hospitals · Greenville, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230035
Location615 S Bower StreetGreenville, MI 48838 · Montcalm County
Birthing friendly

Spectrum Health

Acute Care Hospitals · Grand Rapids, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230038
Location100 Michigan St NEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

Corewell Health Big Rapids Hospital

Acute Care Hospitals · Big Rapids, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230093
Location605 Oak StreetBig Rapids, MI 49307 · Mecosta County
Emergency services Birthing friendly

Corewell Health Ludington Hospital

Acute Care Hospitals · Ludington, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230110
LocationOne N Atkinson DriveLudington, MI 49431 · Mason County
Emergency services Birthing friendly

Corewell Health Pennock Hospital

Critical Access Hospitals · Hastings, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number231339
Location1009 W Green StHastings, MI 49058 · Barry County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49431 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.16/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality86.28
Improvement Activities40
Cost67.44

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.

Non-Pharmacy Dispensing Site
1 N ATKINSON DR
LUDINGTON, MI 49431
Dietitian, Registered
1 N ATKINSON DR
LUDINGTON, MI 49431
Emergency Medicine (Emergency Medical Services)
1 N ATKINSON DR
LUDINGTON, MI 49431
Emergency Medicine (Emergency Medical Services)
1 N ATKINSON DR
LUDINGTON, MI 49431
Nurse Anesthetist, Certified Registered
1 N ATKINSON DR
LUDINGTON, MI 49431
Dietitian, Registered
1 N ATKINSON DR
LUDINGTON, MI 49431
Dietitian, Registered
1 N ATKINSON DR
LUDINGTON, MI 49431
Nurse Anesthetist, Certified Registered
1 N ATKINSON DR
LUDINGTON, MI 49431

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 Ann Koss's NPI number?

The NPI number for Ann Koss is 1467488759. It was assigned to this individual provider in the NPPES registry on June 25, 2006.

Where is Ann Koss located?

Ann Koss practices at 1 N Atkinson Dr, Ludington, MI 49431. The listed phone number is (231) 845-2255.

What is Ann Koss's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Ann Koss enrolled in Medicare?

Yes. Ann Koss 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 Ann Koss accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Ann Koss 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 Ann Koss affiliated with any hospitals?

According to CMS data, Ann Koss is affiliated with Spectrum Health United Hospital, Spectrum Health, Corewell Health Big Rapids Hospital, Corewell Health Ludington Hospital and Corewell Health Pennock Hospital.

When was this NPI record last updated?

The NPPES record for Ann Koss was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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.