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MRS. LILY MARK -MAASDAM O.D.
NPI 1477536423
Optometrist in Knoxville, IA

Active since November 23, 2005PECOS EnrolledAccepts Medicare Assignment
100 S 5TH ST, KNOXVILLE, IA 50138(641) 842-3616(641) 842-5453 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mrs. Lily Mark -maasdam O.d. NPPES

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

MRS. LILY MARK -MAASDAM O.D. (NPI 1477536423) is an individual optometrist in Knoxville, Iowa, licensed in Iowa (02111) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS and is a graduate of Illinois College Of Optometry At Chicago (1998).

NPPES Registry Identity

NPI1477536423
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameMRS. LILY MARK -MAASDAMCredential: O.D.
Location Address100 S 5TH STKnoxville, IA 50138-1712
Mailing Address100 S 5th StKnoxville, IA 50138-1712 · (641) 842-3616 · Fax (641) 842-5453
Phone(641) 842-3616
Fax(641) 842-5453
Sole ProprietorNo
Medical School CMSIllinois College Of Optometry At ChicagoGraduated 1998
Enumeration DateNovember 23, 2005
Last NPPES UpdateJuly 8, 2007
✔ NPI 1477536423 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in IA · 02111
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
100 S 5TH ST, Knoxville, IA 50138
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Other Identifiers 4

Other48881IA · Blue Cross
Medicare UPINU74394IA
Medicare ID-Type UnspecifiedI4729IA
Medicaid1186106IA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Providence Health Plan, UnitedHealthcare.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

Mrs. Lily Mark -maasdam O.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 ID8921019720
PECOS Enrollment IDI20100728000839
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 complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
456 services456 patients
Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
172 services160 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.
131 services94 patients
Removal of cataract with insertion of prosthetic lens 66984
This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.
67 services38 patients
New patient complete exam of visual system 92004
A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.
27 services27 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50138 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
$122.23 typical visit price
range $52.96 – $161.40
Typical copayment $30.55 (range $13.24 – $40.35)
Most-billed visit code 99204
Established Patient
$66.36 typical visit price
range $16.91 – $131.98
Typical copayment $16.59 (range $4.22 – $32.99)
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Frames, purchases V2020
Other-Vision, Hearing, and Speech Services · category OC000N
1 supplier13 claims13 services$46.23 avg. paid by Medicare
Sphere, trifocal, plano to plus or minus 4.00d, per lens V2300
Other-Vision, Hearing, and Speech Services · category OC000N
1 supplier15 claims30 services$43.92 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 2

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

EYE HEALTH SOLUTIONS PC
Optometrist
100 S 5TH ST
KNOXVILLE, IA 50138
Marion County (641) 842-4575
DR. JASON MAASDAM O.D.
Optometrist
100 S 5TH ST
KNOXVILLE, IA 50138
Marion County (641) 842-3616

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 Lily Mark -maasdam's NPI number?

The NPI number for Lily Mark -maasdam is 1477536423. It was assigned to this individual provider in the NPPES registry on November 23, 2005.

Where is Lily Mark -maasdam located?

Lily Mark -maasdam practices at 100 S 5th St, Knoxville, IA 50138. The listed phone number is (641) 842-3616.

What is Lily Mark -maasdam's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Lily Mark -maasdam enrolled in Medicare?

Yes. Lily Mark -maasdam 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 Lily Mark -maasdam accept?

Health plans from Medica, Providence Health Plan and UnitedHealthcare list Lily Mark -maasdam 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.

When was this NPI record last updated?

The NPPES record for Lily Mark -maasdam was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.