NPPES file of Aug 9, 2026

Glen T. Cahill, O.D.

Optometrist · Belcourt, ND

Glen T. Cahill, O.D. is an optometrist with a practice address in Belcourt, North Dakota, and NPI 1265402267, issued on Jan 24, 2006. Check the license with the North Dakota 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
1265402267
Name
Glen T. Cahill
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
1342-3 KS
Self-reported in NPPES; status is on the state search
Practice location
1300 Hospital Road, Belcourt, ND 58316
Phone
(701) 477-6111
Enumerated
Jan 24, 2006
Record last updated
Mar 4, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(701) 477-2507
Medicaid ID
60712 ND
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 Glen T. Cahill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich North Dakota board licenses this professionCheck 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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56% fewer Medicare Part D claims than the average optometrist in 2024

121 Medicare Part D claims for 34 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Glen Cahill121
  2. Specialty average277

Most prescribed

  1. Latanoprost59 claims
  2. Dorzolamide-Timolol25 claims
  3. Timolol Maleate23 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): 53.9 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 score76.3
  2. Costout of 100 · 30%36.7
  3. Promoting interoperabilityout of 100 · 25%0.0
  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).

Glen T. Cahill among 236 optometrist records in North Dakota

Glen T. Cahill, O.D. is one of 236 optometrist records with a practice address in North Dakota. 80% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 53% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 73% of these records are
  • Record last updated2013 · 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 North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 optometrist records list a practice address in Belcourt

They are 3 of the 287 NPPES records with a practice address in Belcourt, and 236 optometrist records in North Dakota.

The 8 optometrist records with the nearest ZIP codes

  1. Ann Benavidez, O.D.Belcourt, ND 583161598141939
  2. Terry Schleisman, ODBelcourt, ND 583161679654883
  3. Paul Dunderland, O.D.Bottineau, ND 583181750599916
  4. Blaine Burdick, O.D.Devils Lake, ND 583011235393489
  5. Carey Enderle, ODDevils Lake, ND 583011275726887
  6. Kaylin Johnston, ODDevils Lake, ND 583011720632094
  7. Steven Kourajian, O.D.Harvey, ND 583411255315792
  8. Dori Carlson, ODPark River, ND 582701649231192

Common questions

What is Glen T. Cahill, O.D.'s NPI number?

Glen T. Cahill, O.D.'s National Provider Identifier (NPI) is 1265402267, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Glen T. Cahill, O.D. located?

The NPPES record lists a practice address at 1300 Hospital Road, Belcourt, ND, 58316. Phone: (701) 477-6111. Providers update this record themselves, so call before visiting.

How can I verify Glen T. Cahill, O.D.'s license?

Search the North Dakota board that licenses this profession; the NPPES record confirms identity only.

How much does Glen T. Cahill, O.D. prescribe under Medicare Part D?

In 2024, Glen T. Cahill, O.D. had 121 Medicare Part D claims for 34 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Glen T. Cahill, O.D.'s MIPS final score?

The 2023 MIPS final score is 53.9 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.