Dr. Michael J Kruger , OD
Optometrist • Ames, IA
201 10th St
Ames, IA 500106211
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on August 22, 2005; this date does not establish years in practice.
-
Published CMS data list 792 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- 92014 — Established patient complete exam of visual system: 289 service units.
- 92250 — Photography of the retina: 116 service units.
- 99214 — Established patient outpatient office visit: 95 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 10 records in the table · Guide: How to read Medicare Part B data
-
Published CMS data list 437 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
-
Published Part D records, 2024:
- Latanoprost — 296 prescription fills, including refills.
- Timolol Maleate — 61 prescription fills, including refills.
- Lumigan (Bimatoprost) — 26 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table · Guide: How to read Medicare Part D prescriber data
-
More Medicare Part B services than 70% of clinicians listed under Optometrist in Ames, IA (2024, 11 clinicians with data). Median for this group: 573. Middle half: 183 to 1,196.
More Medicare Part B services than 65% of clinicians listed under Optometrist in Iowa (2024, 462 clinicians with data). Median for this group: 537. Middle half: 252 to 972.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 776 in 2020 to 792 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
201 10th St
Ames, IA 500106211
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: Central Iowa Eye Associates, P.C.; John E Kruger, O.D., P.C.. 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
Ohio State University - College Of Optometry
2004
What Public CMS Data Show
Optometrist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
329 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $67,568 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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 $42,240 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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.
30-day fills
547 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$29,236 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $395.12 across 9 records.
By nature of payment
- Food and Beverage: $395.12 across 9 records.
Reporting-company totals
- Tarsus Pharmaceuticals, Inc.: $221.79 across 6 records.
- Alcon Vision LLC: $121.12 across 1 record.
- Johnson & Johnson Vision Care, Inc.: $52.21 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
22 years (graduated 2004)
CMS Doctors and Clinicians data list 2004 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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
2005
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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?”
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.
Enrolled in Medicare (PECOS)
Dr. Kruger 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.
Can order Medicare-covered services
CMS lists Dr. Kruger 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Ames and Iowa
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Optometrist in Ames, IA (2024, 11 clinicians with data). Median for this group: 573. Middle half: 183 to 1,196.
More Medicare Part B services than 65% of clinicians listed under Optometrist in Iowa (2024, 462 clinicians with data). Median for this group: 537. Middle half: 252 to 972.
Medicare-allowed amount
A higher Medicare-allowed amount than 70% of clinicians listed under Optometrist in Ames, IA (2024, 11 clinicians with data). Median for this group: $49,807. Middle half: $17,183 to $84,545.
A higher Medicare-allowed amount than 65% of clinicians listed under Optometrist in Iowa (2024, 462 clinicians with data). Median for this group: $46,245. Middle half: $21,558 to $81,920.
Paid by Medicare
A higher Medicare payment amount than 70% of clinicians listed under Optometrist in Ames, IA (2024, 11 clinicians with data). Median for this group: $32,835. Middle half: $11,184 to $53,656.
A higher Medicare payment amount than 65% of clinicians listed under Optometrist in Iowa (2024, 462 clinicians with data). Median for this group: $29,664. Middle half: $13,537 to $53,207.
Medicare Part D prescriptions
More Part D prescriptions than 75% of clinicians listed under Optometrist in Iowa (2024, 428 clinicians with data). Median for this group: 206. Middle half: 78 to 393.
Too few clinicians listed under Optometrist in Ames have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Optometrist in Iowa (2024, 428 clinicians with data). Median for this group: $9,300. Middle half: $1,558 to $29,254.
Too few clinicians listed under Optometrist in Ames have Medicare Part D data for 2024 to compare.
14 active clinicians are listed under Optometrist with a practice address in Ames, IA (677 in Iowa).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Ames
0% of these 14 clinicians have the CMS telehealth indicator.
71.4% of these 14 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
Medicare Part B services stayed about the same: 776 in 2020 and 792 in 2024.
- 2020: 776
- 2021: 829
- 2022: 849
- 2023: 812
- 2024: 792
-
Medicare-allowed amount
Medicare-allowed amount stayed about the same: $64,849 in 2020 and $67,568 in 2024.
- 2020: $64,849
- 2021: $72,000
- 2022: $73,756
- 2023: $69,027
- 2024: $67,568
-
Paid by Medicare
Paid by Medicare stayed about the same: $40,812 in 2020 and $42,240 in 2024.
- 2020: $40,812
- 2021: $45,127
- 2022: $44,171
- 2023: $43,424
- 2024: $42,240
-
Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 446 in 2020 and 437 in 2024.
- 2020: 446
- 2021: 459
- 2022: 458
- 2023: 399
- 2024: 437
-
30-day fills
30-day fills stayed about the same: 583 in 2020 and 547 in 2024.
- 2020: 583
- 2021: 597
- 2022: 614
- 2023: 539
- 2024: 547
-
Part D drug cost
Part D drug cost decreased 36% from $45,624 in 2020 to $29,236 in 2024.
- 2020: $45,624
- 2021: $42,068
- 2022: $51,888
- 2023: $43,818
- 2024: $29,236
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $88.62 in 2021 to $395.12 in 2025.
- 2021: $88.62
- 2022: $146.76
- 2023: $126.46
- 2024: $193.89
- 2025: $395.12
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), 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
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $395.12.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
— | General | $131.27 |
| Alcon Vision LLC |
Food and Beverage
In-kind items and services
|
Precision7 | General | $121.12 |
| Johnson & Johnson Vision Care, Inc. |
Food and Beverage
In-kind items and services
|
— | General | $29.78 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
XDEMVY | General | $28.53 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
XDEMVY | General | $23.50 |
| Johnson & Johnson Vision Care, Inc. |
Food and Beverage
In-kind items and services
|
— | General | $22.43 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
XDEMVY | General | $18.49 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
XDEMVY | General | $14.69 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
XDEMVY | General | $5.31 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
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 |
|---|---|---|---|---|
|
92014
Established patient complete exam of visual system
|
289 | 288 | $266.00 | $116.26 |
|
92250
Photography of the retina
|
116 | 111 | $105.00 | $33.86 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
95 | 81 | $170.00 | $118.52 |
|
92083
Exam of visual field with extended testing
|
82 | 76 | $134.00 | $57.98 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
70 | 58 | $117.00 | $83.88 |
|
92133
Imaging of optic nerve
|
42 | 41 | $78.00 | $31.81 |
|
92134
Imaging of retina
|
33 | 32 | $85.00 | $35.21 |
|
66984
Removal of cataract with insertion of prosthetic lens
|
29 | 18 | $290.00 | $97.55 |
|
92020
Exam of the internal drainage system of eye
|
19 | 19 | $59.00 | $25.45 |
|
92004
New patient complete exam of visual system
|
17 | 17 | $318.00 | $137.95 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Latanoprost | Latanoprost | 296 | 8,912 | $2,308.68 | 38 |
| Timolol Maleate | Timolol Maleate | 61 | 2,449 | $878.93 | 13 |
| Lumigan | Bimatoprost | 26 | 812 | $7,388.08 | — |
| Restasis | Cyclosporine | 24 | 750 | $13,433.45 | — |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 15 | 687 | $193.49 | — |
| Brimonidine Tartrate-Timolol | Brimonidine Tartrate/Timolol | 15 | 938 | $5,033.10 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 152W00000X
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.
NUCC Taxonomy Code: 152WC0802X
The professional activities performed by an Optometrist related to the fitting of contact lenses to an eye, ongoing evaluation of the cornea's ability to sustain successful contact lens wear, and treatment of any external eye or corneal condition which can affect contact lens wear.
NUCC Taxonomy Code: 152WP0200X
Optometrists who work in Pediatrics are concerned with the prevention, development, diagnosis, and treatment of visual problems in children.
NUCC Taxonomy Code: 152WS0006X
An optometrist who offers services designed to care for unique vision care needs of athletes, which may include one of more of the following services: corrective vision care unique to a specific sporting environment; protective eyewear for the prevention of sports-related injuries; vision enhancement - which may include vision therapy and techniques to improve visual skills specific to the athlete's sport.
NUCC Taxonomy Code: 152WV0400X
Optometrists who specialize in vision therapy as a treatment process used to improve vision function. It includes a broad range of developmental and rehabilitative treatment programs individually prescribed to remediate specific sensory, motor and/or visual perceptual dysfunctions.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPTOMETRY
I20040902000217
IA
2365417243
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
Central Iowa Eye Associates, P.c.
2600 Grand Ave, Des Moines, IA 503125300
Phone: 5152431667
John E Kruger, O.d., P.c.
201 10th St, Ames, IA 500106211
Phone: 5152323451
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Optometrist
Doctor of Optometry
Career & Practice History
NPI enumerated August 22, 2005.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Optometrists in Ames
- Dr. Daniel Koenig, OD
- Dr. Julie Larson, OD
- Dr. Lesley Olswing, OD
- Dr. Daniel Draayer, OD
- Dr. Carrie Koenig, OD
- Dr. Matthew Donner, OD
Mailing Address
201 10th St
Ames, IA 500106211
Phone: 5152323451