Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Derek Michaelis

Optometrist • Duluth, MN

Active NPI 1932764883 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

213 W 1st St
Duluth, MN 558021909

Call 2187271004 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

213 W 1st St

Duluth, MN 558021909

Telephone 2187271004
Organization at the Same NPPES Address or Phone
Derin J Van Loon Od Pa Facility NPI 1811975931

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Relf Eyecare Specialists Pa. 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

Medical School

New England College Of Optometry

Graduation Year

2019

Medicare patients

351 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $59,145 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.

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 $36,568 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

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

1,403 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

$207,768 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

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: $74.17 across 3 records.

By nature of payment

  • Food and Beverage: $74.17 across 3 records.

Reporting-company totals

  • Alcon Vision LLC: $38.05 across 2 records.
  • Tarsus Pharmaceuticals, Inc.: $36.12 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.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

7 years (graduated 2019)

CMS Doctors and Clinicians data list 2019 as the year this clinician finished professional 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

2019

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.

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?”

Guide: What Medicare assignment means

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Derek Michaelis 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.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Derek Michaelis 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.

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.

Guide: What ordering and referring status means

Compared with the same specialty in Duluth and Minnesota

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 85% of clinicians listed under Optometrist in Duluth, MN (2024, 15 clinicians with data). Median for this group: 265. Middle half: 43 to 391.

More Medicare Part B services than 75% of clinicians listed under Optometrist in Minnesota (2024, 669 clinicians with data). Median for this group: 259. Middle half: 81 to 589.

Medicare-allowed amount

A higher Medicare-allowed amount than 90% of clinicians listed under Optometrist in Duluth, MN (2024, 15 clinicians with data). Median for this group: $19,618. Middle half: $4,770 to $31,530.

A higher Medicare-allowed amount than 85% of clinicians listed under Optometrist in Minnesota (2024, 669 clinicians with data). Median for this group: $22,105. Middle half: $8,729 to $41,684.

Paid by Medicare

A higher Medicare payment amount than 85% of clinicians listed under Optometrist in Duluth, MN (2024, 15 clinicians with data). Median for this group: $11,965. Middle half: $3,205 to $18,996.

A higher Medicare payment amount than 80% of clinicians listed under Optometrist in Minnesota (2024, 669 clinicians with data). Median for this group: $14,172. Middle half: $5,383 to $26,876.

Medicare Part D prescriptions

More Part D prescriptions than 90% of clinicians listed under Optometrist in Duluth, MN (2024, 11 clinicians with data). Median for this group: 410. Middle half: 293 to 596.

More Part D prescriptions than 90% of clinicians listed under Optometrist in Minnesota (2024, 616 clinicians with data). Median for this group: 180. Middle half: 63 to 412.

Part D drug cost

A higher Part D drug cost than 95% of clinicians listed under Optometrist in Duluth, MN (2024, 11 clinicians with data). Median for this group: $18,388. Middle half: $7,955 to $104,590.

A higher Part D drug cost than 95% of clinicians listed under Optometrist in Minnesota (2024, 616 clinicians with data). Median for this group: $9,045. Middle half: $1,323 to $36,130.

24 active clinicians are listed under Optometrist with a practice address in Duluth, MN (1,142 in Minnesota).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Duluth

0% of these 24 clinicians have the CMS telehealth indicator.

70.8% of these 24 clinicians are listed by CMS as accepting Medicare assignment.

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

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $74.17.

Manufacturer Payment Nature Product Type Amount ($)
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $36.12
Alcon Vision LLC
Food and Beverage
In-kind items and services
Clareon General $24.48
Alcon Vision LLC
Food and Beverage
In-kind items and services
Precision7 General $13.57

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018–2023 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, 2019–2024; 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
217 213 $371.00 $123.50
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
103 73 $265.00 $87.75
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
78 43 $167.00 $54.45
92012 Established patient problem focused exam of visual system
67 49 $265.00 $87.98
92004 New patient complete exam of visual system
52 52 $439.00 $147.24
92133 Imaging of optic nerve
52 48 $143.00 $35.84
92083 Exam of visual field with extended testing
22 22 $270.00 $62.91
92134 Imaging of retina
20 17 $143.00 $38.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
12 12 $375.00 $124.36

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.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Latanoprost Latanoprost 173 10,229 $2,570.69 49
Timolol Maleate Timolol Maleate 104 8,244 $1,215.46 37
Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat 78 4,555 $1,801.07 22
Erythromycin Erythromycin Base 60 849 $757.29 32
Prednisolone Acetate Prednisolone Acetate 40 1,366 $1,843.15 30
Restasis Cyclosporine 35 2,670 $55,731.77 14
Xdemvy Lotilaner 35 1,586 $64,251.35 34
Ofloxacin Ofloxacin 30 883 $570.10 23
Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha 26 342 $316.09 22
Xiidra Lifitegrast 24 1,590 $35,423.39 —
Doxycycline Monohydrate Doxycycline Monohydrate 20 877 $403.07 —
Tyrvaya Varenicline Tartrate 20 720 $14,123.66 —
Brimonidine Tartrate Brimonidine Tartrate 19 966 $2,548.41 —
Cyclosporine Cyclosporine 18 1,440 $16,295.15 11
Brimonidine Tartrate-Timolol Brimonidine Tartrate/Timolol 17 883 $3,889.64 —
Dorzolamide Hcl Dorzolamide Hcl 16 1,325 $453.14 —
Valacyclovir Valacyclovir Hcl 15 150 $663.44 —
Pilocarpine Hcl Pilocarpine Hcl 15 663 $1,238.12 —
Rocklatan Netarsudil Mesylat/Latanoprost 11 269 $3,672.68 —

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

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

License # reported to NPPES MN 3625

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.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Minnesota Board of Medical Practice.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - OPTOMETRY

Medicare Enrollment ID

I20190702000454

Enrollment State Jurisdiction

MN

PECOS Control ID

5597099143

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Not Eligible

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

Relf Eyecare Specialists Pa

4413 Air Base Rd, Hermantown, MN 558111847

Phone: 2187203553

Relf Eyecare Specialists Pa

4413 Airbase Rd, Hermantown, MN 558111847

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
NPI 1568440675

Doctor of Optometry

NPI 1295713303

Doctor of Optometry

Career & Practice History

NPI enumerated May 07, 2019.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from May 2019 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1932764883
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 07, 2019
Last Update: June 11, 2019
Sole Proprietor: Yes

Other Optometrists in Duluth

All Optometrists in Duluth

Mailing Address

213 W 1st St

Duluth, MN 558021909

Phone: 2187271004

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.