Dr. Robert Allen Lowenthal , MD
Ophthalmology โข Springfield, IL
1025 S 6th St
Springfield, IL 627032403
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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Dr. Robert Lowenthal is listed in NPPES under Ophthalmology.
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NPI assigned on August 1, 2006; this date does not establish years in practice.
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Published CMS data list 75,145 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- J2777 โ Injection, faricimab-svoa, 0.1 mg: 65,280 service units.
- 92134 โ Imaging of retina: 2,906 service units.
- 99213 โ Established patient outpatient office visit: 2,083 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 ยท Guide: How to read Medicare Part B data
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Published CMS data list 80 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Ketorolac Tromethamine โ 33 prescription fills, including refills.
- Prednisolone Acetate โ 13 prescription fills, including refills.
- Erythromycin (Erythromycin Base) โ 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 95% of clinicians listed under Ophthalmology in Springfield, IL (2024, 16 clinicians with data). Median for this group: 1,517. Middle half: 709 to 7,850.
More Medicare Part B services than 95% of clinicians listed under Ophthalmology in Illinois (2024, 519 clinicians with data). Median for this group: 1,942. Middle half: 813 to 3,689.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 10,097 in 2020 to 75,145 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1025 S 6th St
Springfield, IL 627032403
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Washington University School Of Medicine
1991
What Public CMS Data Show
Ophthalmology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
774 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 โ by Provider, 2024.
Medicare-allowed amount
About $4,595,622 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 โ by Provider and Service, 2024.
Paid by Medicare
About $3,610,997 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 โ by Provider and Service, 2024.
30-day fills
125 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
$7,334 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $256.03 across 9 records.
By nature of payment
- Food and Beverage: $256.03 across 9 records.
Reporting-company totals (3 largest of 4)
- Astellas Pharma US Inc: $129.74 across 4 records.
- Genentech, Inc.: $84.02 across 3 records.
- Regeneron Pharmaceuticals, Inc.: $25.84 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 2025 (published June 30, 2026).
Years since graduation
35 years (graduated 1991)
CMS Doctors and Clinicians data list 1991 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
2006
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, โDoes your provider accept Medicare as full payment?โ
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. Lowenthal 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. Lowenthal 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 Springfield and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Ophthalmology in Springfield, IL (2024, 16 clinicians with data). Median for this group: 1,517. Middle half: 709 to 7,850.
More Medicare Part B services than 95% of clinicians listed under Ophthalmology in Illinois (2024, 519 clinicians with data). Median for this group: 1,942. Middle half: 813 to 3,689.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Ophthalmology in Springfield, IL (2024, 16 clinicians with data). Median for this group: $213,217. Middle half: $99,012 to $569,763.
A higher Medicare-allowed amount than 95% of clinicians listed under Ophthalmology in Illinois (2024, 519 clinicians with data). Median for this group: $217,562. Middle half: $82,211 to $445,105.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Ophthalmology in Springfield, IL (2024, 16 clinicians with data). Median for this group: $154,907. Middle half: $67,838 to $440,296.
A higher Medicare payment amount than 95% of clinicians listed under Ophthalmology in Illinois (2024, 519 clinicians with data). Median for this group: $156,041. Middle half: $58,651 to $322,257.
Medicare Part D prescriptions
Fewer Part D prescriptions than 85% of clinicians listed under Ophthalmology in Springfield, IL (2024, 17 clinicians with data). Median for this group: 881. Middle half: 227 to 1,991.
Fewer Part D prescriptions than 85% of clinicians listed under Ophthalmology in Illinois (2024, 570 clinicians with data). Median for this group: 891. Middle half: 294 to 1,971.
Part D drug cost
A lower Part D drug cost than 85% of clinicians listed under Ophthalmology in Springfield, IL (2024, 17 clinicians with data). Median for this group: $44,196. Middle half: $13,362 to $259,055.
A lower Part D drug cost than 75% of clinicians listed under Ophthalmology in Illinois (2024, 570 clinicians with data). Median for this group: $71,776. Middle half: $10,407 to $185,387.
25 active clinicians are listed under Ophthalmology with a practice address in Springfield, IL (898 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Springfield
4% of these 25 clinicians have the CMS telehealth indicator.
52% of these 25 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.
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Medicare Part B services
Medicare Part B services increased 644% from 10,097 in 2020 to 75,145 in 2024.
- 2020: 10,097
- 2021: 10,149
- 2022: 15,138
- 2023: 57,115
- 2024: 75,145
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Medicare-allowed amount
Medicare-allowed amount increased 51% from $3,041,756 in 2020 to $4,595,622 in 2024.
- 2020: $3,041,756
- 2021: $3,111,090
- 2022: $3,319,495
- 2023: $4,044,056
- 2024: $4,595,622
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Paid by Medicare
Paid by Medicare increased 51% from $2,396,331 in 2020 to $3,610,997 in 2024.
- 2020: $2,396,331
- 2021: $2,487,979
- 2022: $2,616,534
- 2023: $3,187,983
- 2024: $3,610,997
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Medicare Part D prescriptions
Medicare Part D prescriptions varied from year to year: 75 in 2020 and 80 in 2024.
- 2020: 75
- 2021: 70
- 2022: 88
- 2023: 82
- 2024: 80
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30-day fills
30-day fills increased 26% from 99 in 2020 to 125 in 2024.
- 2020: 99
- 2021: 93
- 2022: 116
- 2023: 134
- 2024: 125
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Part D drug cost
Part D drug cost decreased 21% from $9,233 in 2020 to $7,334 in 2024.
- 2020: $9,233
- 2021: $9,670
- 2022: $12,813
- 2023: $6,150
- 2024: $7,334
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $214.88 in 2021 to $256.03 in 2025.
- 2021: $214.88
- 2022: $100.00
- 2023: $758.78
- 2024: $604.22
- 2025: $256.03
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 ยท 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 โ December 31, 2025): fewer than 11 records totaling $256.03.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Izervay | General | $34.50 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Izervay | General | $34.39 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Izervay | General | $32.53 |
| Genentech, Inc. |
Food and Beverage
In-kind items and services
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Vabysmo | General | $29.73 |
| Genentech, Inc. |
Food and Beverage
In-kind items and services
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Vabysmo | General | $29.34 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Izervay | General | $28.32 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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EYLEA HD | General | $25.84 |
| Genentech, Inc. |
Food and Beverage
In-kind items and services
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Vabysmo | General | $24.95 |
| Thea Pharma Inc. |
Food and Beverage
In-kind items and services
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IYUZEH | General | $16.43 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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 โ by Provider and Service data, 2017โ2024; 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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J2777
Injection, faricimab-svoa, 0.1 mg
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65,280 | 195 | $73.00 | $34.60 |
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92134
Imaging of retina
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2,906 | 746 | $184.83 | $38.31 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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2,083 | 678 | $412.90 | $88.39 |
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67028
Injection of drug into eye
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2,032 | 420 | $1291.91 | $115.80 |
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J0178
Injection, aflibercept, 1 mg
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1,982 | 201 | $1850.00 | $824.34 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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268 | 189 | $581.71 | $122.82 |
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92014
Established patient complete exam of visual system
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238 | 186 | $385.14 | $119.57 |
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J2778
Injection, ranibizumab, 0.1 mg
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220 | 11 | $780.00 | $160.26 |
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92012
Established patient problem focused exam of visual system
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110 | 87 | $292.98 | $83.62 |
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J3590
Unclassified biologics
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26 | 13 | $7737.00 | $2558.17 |
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 |
|---|---|---|---|---|---|
| Ketorolac Tromethamine | Ketorolac Tromethamine | 33 | 1,701 | $574.42 | 11 |
| Prednisolone Acetate | Prednisolone Acetate | 13 | 626 | $563.69 | โ |
| Erythromycin | Erythromycin Base | 12 | 221 | $106.10 | โ |
| Ilevro | Nepafenac | 11 | 450 | $5,205.90 | โ |
| Difluprednate | Difluprednate | 11 | 496 | $883.82 | โ |
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
Self-certified to NPPES: 2020-05-21NUCC Taxonomy Code: 207W00000X
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPHTHALMOLOGY
I20060123000355
IL
1254351760
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Advanced Practice Registered Nurse
Internal Medicine - Interventional Cardiology
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Pediatrics
Physician Assistant
Physician Assistant (Certified)
Career & Practice History
NPI enumerated August 01, 2006.
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 Ophthalmology Specialists in Springfield
- Dr. Kenneth Farr, MD
- Dr. Lisa Nijm, MD
- Dr. Tomas Tredici, MD
- Dr. Grant Su, MD
- Dr. Patrick Butler, MD
- Dr. Ramanath Bhandari, MD
Mailing Address
1025 S 6th St
Springfield, IL 627032403
Phone: 2175287541