NPPES file of Aug 9, 2026

Nathan R. Bjork, OD

Optometrist · Middletown, OH

Nathan R. Bjork, OD is an optometrist with a practice address in Middletown, Ohio, and NPI 1558328617, issued on May 1, 2006. Check the license (Ohio 5104 T2003, as entered in NPPES) with the Ohio 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
1558328617
Name
Nathan R. Bjork
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License numbers
5104 T2003 OH
5104T2003 OH
Self-reported in NPPES; status is on the state search
Practice location
315 N Breiel Blvd, Middletown, OH 45042
Phone
(513) 424-0339
Enumerated
May 1, 2006
Record last updated
Feb 15, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(513) 424-4910
Medicaid IDs
77000313 KY
200320880 IN
2226308 OH
Medicare enrollment
Enrolled (PECOS I20040622000061); accepts Medicare assignment
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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Also registered at 315 N Breiel Blvd

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

  1. Katherine Fisher, ODOptometrist1295226280
  2. Brian Landrum, O.D., M.S.Optometrist1801024047

Verify Nathan R. Bjork in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this profession
    Search for license 5104 T2003
    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 Ohio license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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76% more Medicare Part D claims than the average optometrist in 2024

487 Medicare Part D claims for 112 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Nathan Bjork487
  2. Specialty average277

Most prescribed

  1. Latanoprost225 claims
  2. Dorzolamide-Timolol85 claims
  3. Brimonidine Tartrate82 claims
  4. Timolol Maleate50 claims
  5. Dorzolamide Hcl11 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.

Industry payments in 2024: $17.83

1 payment: food and beverage; the largest payer was Alcon Vision LLC. 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. Nathan Bjork$17.83
  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.

Bills Medicare through one group practice

  1. Optometric Management Group LLCPowell, OH

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

Nathan R. Bjork among 2,443 optometrist records in Ohio

Nathan R. Bjork, OD is one of 2,443 optometrist records with a practice address in Ohio. 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 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 54% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2000 · median 2006 among the 1,466 with a school on file
  • Record last updated2012 · 70% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Ohio

There are 2,443 optometrist records in Ohio.

The 8 optometrist records with the nearest ZIP codes

  1. Eric Combs, O.D.Middletown, OH 450421679860753
  2. Katherine Fisher, ODMiddletown, OH 450421295226280
  3. Donald Henderson, O.D.Middletown, OH 450421851375406
  4. Cindy Heng, ODMiddletown, OH 450421982196739
  5. Brian Landrum, O.D., M.S.Middletown, OH 450421801024047
  6. Steven Shadwick, O.D.Middletown, OH 450421932281144
  7. Michele Andrews, ODMason, OH 450401063644201
  8. Adrianne Dirr, ODMiddletown, OH 450441093905606

Common questions

What is Nathan R. Bjork, OD's NPI number?

Nathan R. Bjork, OD's National Provider Identifier (NPI) is 1558328617, issued on May 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nathan R. Bjork, OD located?

The NPPES record lists a practice address at 315 N Breiel Blvd, Middletown, OH, 45042. Phone: (513) 424-0339. Providers update this record themselves, so call before visiting.

How can I verify Nathan R. Bjork, OD's license?

NPPES lists Ohio license number 5104 T2003, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.

How much does Nathan R. Bjork, OD prescribe under Medicare Part D?

In 2024, Nathan R. Bjork, OD had 487 Medicare Part D claims for 112 beneficiaries; 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.