NPPES file of Aug 9, 2026

Mark Edmund Johnston, MD FRCSC

Ophthalmology Physician · Omaha, NE

Mark Edmund Johnston, MD FRCSC is an ophthalmology physician with a practice address in Omaha, Nebraska, and NPI 1851398168, issued on Jun 30, 2005. Check the license (Nebraska 20412, as entered in NPPES) on the Nebraska Board of Medicine and Surgery; 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
1851398168
Name
Mark Edmund Johnston
Credential
MD FRCSC
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
20412 NE
31743 IA
Self-reported in NPPES; status is on the state search
Practice location
13330 N 74TH St, Omaha, NE 68122
Phone
(402) 639-3250
Enumerated
Jun 30, 2005
Record last updated
Mar 6, 2023
Fax
(402) 387-7967
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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Verify Mark Edmund Johnston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNebraska Board of Medicine and Surgery
    Search for license 20412
    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
Open the Nebraska 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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98% fewer Medicare Part D claims than the average ophthalmology physician in 2024

24 Medicare Part D claims, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.

  1. Mark Johnston24
  2. Specialty average1,518

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.

Mark Edmund Johnston among 117 ophthalmology physician records in Nebraska

Mark Edmund Johnston, MD FRCSC is one of 117 ophthalmology physician records with a practice address in Nebraska. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 67% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2023 · 63% 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 Nebraska practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Nebraska

There are 117 ophthalmology physician records in Nebraska.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Bruce Brumm, M.D.Omaha, NE 681221629080239
  2. Matthew Brumm, M.D.Omaha, NE 681221154500726
  3. Michael Dasilva, MDOmaha, NE 681241992237903
  4. Anne Fitzpatrick, M.D.Omaha, NE 681241598740516
  5. Shane Havens, M.D.Omaha, NE 681241548498447
  6. Thomas Hejkal, MD, PHDOmaha, NE 681241427007780
  7. Michael McIntosh, MDOmaha, NE 681241780754614
  8. John Peters, MDOmaha, NE 681241972525996

Common questions

What is Mark Edmund Johnston, MD FRCSC's NPI number?

Mark Edmund Johnston, MD FRCSC's National Provider Identifier (NPI) is 1851398168, issued on Jun 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Edmund Johnston, MD FRCSC located?

The NPPES record lists a practice address at 13330 N 74TH St, Omaha, NE, 68122. Phone: (402) 639-3250. Providers update this record themselves, so call before visiting.

How can I verify Mark Edmund Johnston, MD FRCSC's license?

NPPES lists Nebraska license number 20412, as entered by the provider. Search the Nebraska Board of Medicine and Surgery at https://www.nebraska.gov/LISSearch/search.cgi. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Edmund Johnston, MD FRCSC prescribe under Medicare Part D?

In 2024, Mark Edmund Johnston, MD FRCSC had 24 Medicare Part D claims; the average among ophthalmology physician prescribers was 1,518. 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.