NPPES file of Aug 9, 2026

Erik James Baker, O.D.

Optometrist · Indianapolis, IN

Erik James Baker, O.D. is an optometrist with a practice address in Indianapolis, Indiana, and NPI 1104100957, issued on Sep 28, 2011. Check the license (Indiana 18003696A, as entered in NPPES) with the Indiana 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104100957
Name
Erik James Baker
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
18003696A IN
Self-reported in NPPES; status is on the state search
Practice location
9741 E Washington St, Indianapolis, IN 46229
Phone
(317) 280-8234
Enumerated
Sep 28, 2011
Record last updated
Sep 28, 2011 (not updated in 15 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 9741 E Washington St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Peter Koerner, O.D.Optometrist1922349836
  2. Charmion Stager, O.D.Optometrist1316032154
  3. Quan Tran, ODOptometrist1215508874

Verify Erik James Baker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 18003696A
    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 Indiana license search

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95% fewer Medicare Part D claims than the average optometrist in 2024

15 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Erik Baker15
  2. Specialty average277

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.

Industry payments in 2024: $13.57

1 payment: food and beverage; the largest payer was Johnson & Johnson Vision Care, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Erik Baker$13.57
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Erik James Baker among 1,578 optometrist records in Indiana

Erik James Baker, O.D. is one of 1,578 optometrist records with a practice address in Indiana. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 64% of them.

  • NPI issued2011 · 64% of these records are older, 34% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2011 · 66% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Indiana

There are 1,578 optometrist records in Indiana.

The 8 optometrist records with the nearest ZIP codes

  1. Allyson Brown, O.D.Indianapolis, IN 462291770861411
  2. Nicholas Earls, O.D.Indianapolis, IN 462291598136251
  3. Sahij Grewal, ODIndianapolis, IN 462291922765122
  4. Peter Koerner, O.D.Indianapolis, IN 462291922349836
  5. William Lentz, O.D.Indianapolis, IN 462291114035276
  6. Cathy Macha, O.D.Indianapolis, IN 462291316000730
  7. Marlene Marchesani, ODIndianapolis, IN 462291679675847
  8. Nandita Pushpala, ODIndianapolis, IN 462291255067849

Common questions

What is Erik James Baker, O.D.'s NPI number?

Erik James Baker, O.D.'s National Provider Identifier (NPI) is 1104100957, issued on Sep 28, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Erik James Baker, O.D. located?

The NPPES record lists a practice address at 9741 E Washington St, Indianapolis, IN, 46229. Phone: (317) 280-8234. Providers update this record themselves, so call before visiting.

How can I verify Erik James Baker, O.D.'s license?

NPPES lists Indiana license number 18003696A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.

How much does Erik James Baker, O.D. prescribe under Medicare Part D?

In 2024, Erik James Baker, O.D. had 15 Medicare Part D claims; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

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.