Dr. Dennis E Dettmann , OD
Optometrist • Plainfield, IL
21219 Silktree Cir
Plainfield, IL 605449359
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on August 2, 2005; this date does not establish years in practice.
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Published CMS data list 671 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.
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Published Part B service records, 2024:
- 99310 — Subsequent nursing facility care with high level of medical decision making, per day: 388 service units.
- 99309 — Subsequent nursing facility care with moderate level of medical decision making, per day: 263 service units.
- 99308 — Subsequent nursing facility care with straightforward level of medical decision making, per day: 20 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 the full table · Guide: How to read Medicare Part B data
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Published CMS data list 14 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Latanoprost — 14 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Optometrist in Illinois (2024, 1,202 clinicians with data). Median for this group: 240. Middle half: 79 to 855.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,162 in 2020 to 671 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
21219 Silktree Cir
Plainfield, IL 605449359
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 1 group name: Rosin Optical Co Inc. 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
Illinois College Of Optometry At Chicago
1978
What Public CMS Data Show
Optometrist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
309 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 $85,123 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 $66,384 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
14 standardized 30-day fills in 2022
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
$235 in 2022
The total cost of these prescriptions in 2022, 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, 2022.
Open Payments general payments, program year 2019
All general payments: $113.86 across 2 records.
By nature of payment
- Food and Beverage: $113.86 across 2 records.
Reporting-company totals
- CooperVision Inc.: $93.86 across 1 record.
- Marco Ophthalmic, Inc.: $20.00 across 1 record.
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 2019 (published June 30, 2026).
Years since graduation
48 years (graduated 1978)
CMS Doctors and Clinicians data list 1978 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. Dettmann 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. Dettmann 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 Plainfield and Illinois
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 Illinois (2024, 1,202 clinicians with data). Median for this group: 240. Middle half: 79 to 855.
Too few clinicians listed under Optometrist in Plainfield have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Optometrist in Illinois (2024, 1,202 clinicians with data). Median for this group: $20,979. Middle half: $7,807 to $53,726.
Too few clinicians listed under Optometrist in Plainfield have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 90% of clinicians listed under Optometrist in Illinois (2024, 1,202 clinicians with data). Median for this group: $13,729. Middle half: $5,122 to $34,738.
Too few clinicians listed under Optometrist in Plainfield have Medicare Part B data for 2024 to compare.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Dettmann are from 2022.
8 active clinicians are listed under Optometrist with a practice address in Plainfield, IL (2,697 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 42% from 1,162 in 2020 to 671 in 2024.
- 2020: 1,162
- 2021: 1,188
- 2022: 1,314
- 2023: 963
- 2024: 671
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Medicare-allowed amount
Medicare-allowed amount decreased 35% from $131,014 in 2020 to $85,123 in 2024.
- 2020: $131,014
- 2021: $132,181
- 2022: $144,663
- 2023: $121,553
- 2024: $85,123
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Paid by Medicare
Paid by Medicare decreased 36% from $103,452 in 2020 to $66,384 in 2024.
- 2020: $103,452
- 2021: $105,079
- 2022: $114,575
- 2023: $95,562
- 2024: $66,384
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 12 in 2014 to 14 in 2022.
- 2014: 12
- 2015: 23
- 2022: 14
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30-day fills
30-day fills went from 12 in 2014 to 14 in 2022.
- 2014: 12
- 2015: 23
- 2022: 14
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Part D drug cost
Part D drug cost went from $146 in 2014 to $235 in 2022.
- 2014: $146
- 2015: $256
- 2022: $235
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2022), 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
Program year 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $113.86.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| CooperVision Inc. |
Food and Beverage
In-kind items and services
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Clariti Contact Lens | General | $93.86 |
| Marco Ophthalmic, Inc. |
Food and Beverage
Cash or cash equivalent
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OPD-III | General | $20.00 |
Source: CMS Open Payments, program year 2019, 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 |
|---|---|---|---|---|
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99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
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388 | 166 | $175.00 | $146.63 |
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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263 | 153 | $135.00 | $101.97 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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20 | 19 | $105.00 | $70.62 |
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 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Latanoprost | Latanoprost | 14 | 350 | $235.06 | — |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2024-12-13NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPTOMETRY
I20040812000233
IL
8224017587
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
Rosin Optical Co Inc
6233 Cermak Rd, Berwyn, IL 604022317
Phone: 7087492020
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 21219 SILKTREE CIR, PLAINFIELD, IL 605449359 (Tel: 6302576493)
Registered at 21219 SILKTREE CIR, PLAINFIELD, IL 605449359 (Tel: 6302576493)
NPI status registered as active in NPPES database
Registered at 5039 MAIN ST, LISLE, IL 605322246 (Tel: 6302576493)
Registered at 5039 MAIN ST, LISLE, IL 605322246 (Tel: 6302576493)
Recorded as DENNIS DETTMANN, O.D.
Optometrist (license number reported to NPPES: IL 046007054)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Optometrists in Plainfield
Healthcare providers in PlainfieldMailing Address
21219 Silktree Cir
Plainfield, IL 605449359
Phone: 6302576493