NPPES file of Aug 9, 2026

Nathaniel M. Erdman, O.D.

Optometrist · Chicago, IL

Nathaniel M. Erdman, O.D. is an optometrist with a practice address in Chicago, Illinois, and NPI 1982860557, issued on Aug 4, 2008. Check the license (Illinois 046010139, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982860557
Name
Nathaniel M. Erdman
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
046010139 IL
Self-reported in NPPES; status is on the state search
Practice location
4053 N Sheridan RD, Chicago, IL 60613
Phone
(314) 369-2219
Enumerated
Aug 4, 2008
Record last updated
Apr 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090115000775); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Nathaniel M. Erdman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 046010139
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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2.6 times the Medicare Part D claims of the average optometrist in 2024

732 Medicare Part D claims for 186 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Nathaniel Erdman732
  2. Specialty average277

Most prescribed

  1. Latanoprost305 claims
  2. Brimonidine Tartrate123 claims
  3. Dorzolamide Hcl76 claims
  4. Azelastine Hcl54 claims
  5. Levobunolol Hcl52 claims
  6. Timolol Maleate35 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 84.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score60.3
  2. Costout of 100 · 30%67.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Cook CountyChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nathaniel M. Erdman among 2,697 optometrist records in Illinois

Nathaniel M. Erdman, O.D. is one of 2,697 optometrist records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.

  • NPI issued2008 · 52% of these records are older, 44% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2008 · median 2008 among the 1,513 with a school on file
  • Record last updated2021 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Illinois

There are 2,697 optometrist records in Illinois.

The 8 optometrist records with the nearest ZIP codes

  1. Kayla Akers, ODChicago, IL 606131356791933
  2. Albert Choi, O.D.Chicago, IL 606131720238058
  3. William Feriend, ODChicago, IL 606131083348353
  4. Vandana Patel, O.D.Chicago, IL 606131912159591
  5. Ashley Rhoades, ODChicago, IL 606131316860208
  6. Barry Siegel, O.D.Chicago, IL 606131639177694
  7. Romaya Ahmed, ODChicago, IL 606121326812942
  8. Mara BedellChicago, IL 606121336998293

Common questions

What is Nathaniel M. Erdman, O.D.'s NPI number?

Nathaniel M. Erdman, O.D.'s National Provider Identifier (NPI) is 1982860557, issued on Aug 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel M. Erdman, O.D. located?

The NPPES record lists a practice address at 4053 N Sheridan RD, Chicago, IL, 60613. Phone: (314) 369-2219. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel M. Erdman, O.D.'s license?

NPPES lists Illinois license number 046010139, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Nathaniel M. Erdman, O.D. prescribe under Medicare Part D?

In 2024, Nathaniel M. Erdman, O.D. had 732 Medicare Part D claims for 186 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Nathaniel M. Erdman, O.D.'s MIPS final score?

The 2023 MIPS final score is 84.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.