NPPES file of Aug 9, 2026

Robert G. Essig, OD

Optometrist · Bozeman, MT

Robert G. Essig, OD is an optometrist with a practice address in Bozeman, Montana, and NPI 1639157670, issued on Jan 9, 2006. Check the license (Montana 376OPT, as entered in NPPES) with the Montana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639157670
Name
Robert G. Essig
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
376OPT MT
Self-reported in NPPES; status is on the state search
Practice location
120 N 7TH Ave, Bozeman, MT 59715
Phone
(406) 587-0123
Enumerated
Jan 9, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
0483225 MT
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 Robert G. Essig in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license 376OPT
    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
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Robert G. Essig among 245 optometrist records in Montana

Robert G. Essig, OD is one of 245 optometrist records with a practice address in Montana. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 58% newer
  • In a Medicare fileNo · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2007 · 61% 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Montana

There are 245 optometrist records in Montana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 optometrist records with the nearest ZIP codes

  1. John Anderson, O.D.Bozeman, MT 597151770031452
  2. Brent Harberts, ODBozeman, MT 597151386808301
  3. Sarah Kirkpatrick, ODBozeman, MT 597151144478462
  4. Chad Krezelok, O.D.Bozeman, MT 597151285799650
  5. Arianna Lemay, ODBozeman, MT 597151508436627
  6. Philip Owsley, O.D.Bozeman, MT 597151477699213
  7. Thomas Sather, O.D.Bozeman, MT 597151669531224
  8. Jeffrey Squire, ODBozeman, MT 597151982766747

Common questions

What is Robert G. Essig, OD's NPI number?

Robert G. Essig, OD's National Provider Identifier (NPI) is 1639157670, issued on Jan 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert G. Essig, OD located?

The NPPES record lists a practice address at 120 N 7TH Ave, Bozeman, MT, 59715. Phone: (406) 587-0123. Providers update this record themselves, so call before visiting.

How can I verify Robert G. Essig, OD's license?

NPPES lists Montana license number 376OPT, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity 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. 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.