Robert Allen Lowenthal, M.D.
Ophthalmology Physician · Springfield, IL
Robert Allen Lowenthal, M.D. is an ophthalmology physician with a practice address in Springfield, Illinois, and NPI 1871509323, issued on Aug 1, 2006. Check the license (Illinois 036099681, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Robert Allen Lowenthal
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 036099681 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1025 S 6TH St, Springfield, IL 62703
- Phone
- (217) 528-7541
- Enumerated
- Aug 1, 2006
- Record last updated
- May 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060123000355); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 898 in Illinois → Look up another NPI →
Also registered at 1025 S 6TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stanley Allen, M.D.Internal Medicine Physician1285631127
- Jessica Alwerdt, PHYSICIAN ASSISTANTPhysician Assistant1669706057
Verify Robert Allen Lowenthal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036099681Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average ophthalmology physician in 2024
114 Medicare Part D claims for 39 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Ketorolac Tromethamine33 claims
- Prednisolone Acetate13 claims
- Erythromycin12 claims
- Difluprednate11 claims
- Ilevro11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $604.22
18 payments; by number, the most common kind was food and beverage; the largest payer was Genentech USA, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Robert Allen Lowenthal among 898 ophthalmology physician records in Illinois
Robert Allen Lowenthal, M.D. is one of 898 ophthalmology physician records with a practice address in Illinois. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1991 · median 1999 among the 551 with a school on file
- Record last updated2020 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Illinois
There are 898 ophthalmology physician records in Illinois.
All 898 in Illinois → Every provider in Springfield → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Ramanath Bhandari, MDSpringfield, IL 627031255594248
- Phyllis Eze, M.DSpringfield, IL 627031609063106
- Stephen Holland, M.D.Springfield, IL 627031508205147
- Aleksandr Kagan, D.O.Springfield, IL 627031598728453
- Rahul Kapoor, MDSpringfield, IL 627031972166510
- David Krah, M.D.Springfield, IL 627031225136567
- John Kwedar, M.D.Springfield, IL 627031972601243
- Eric Lohse, M.D.Springfield, IL 627031720186711
Common questions
What is Robert Allen Lowenthal, M.D.'s NPI number?
Robert Allen Lowenthal, M.D.'s National Provider Identifier (NPI) is 1871509323, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Allen Lowenthal, M.D. located?
The NPPES record lists a practice address at 1025 S 6TH St, Springfield, IL, 62703. Phone: (217) 528-7541. Providers update this record themselves, so call before visiting.
How can I verify Robert Allen Lowenthal, M.D.'s license?
NPPES lists Illinois license number 036099681, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Allen Lowenthal, M.D. prescribe under Medicare Part D?
In 2024, Robert Allen Lowenthal, M.D. had 114 Medicare Part D claims for 39 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Robert Allen Lowenthal, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.