NPPES file of Aug 9, 2026

Christine Marie James, OD

Optometrist · Sioux City, IA

Christine Marie James, OD is an optometrist with a practice address in Sioux City, Iowa, and NPI 1992436489, issued on Jun 23, 2022. Check the license (Iowa 114700, as entered in NPPES) with the Iowa 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
1992436489
Name
Christine Marie James
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
114700 IA
Self-reported in NPPES; status is on the state search
Practice location
1909 Hamilton Blvd, Sioux City, IA 51104
Phone
(712) 252-4333
Enumerated
Jun 23, 2022
Record last updated
Jun 23, 2022
Medicare enrollment
Enrolled (PECOS I20241210000383); 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 1909 Hamilton Blvd

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

  1. Cal Wiese, ODOptometrist1356072508

Verify Christine Marie James in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 114700
    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 Iowa 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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38% fewer Medicare Part D claims than the average optometrist in 2024

171 Medicare Part D claims for 48 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.

  1. Christine James171
  2. Specialty average277

Most prescribed

  1. Latanoprost55 claims
  2. Vyzulta22 claims
  3. Fluorometholone12 claims
  4. Lumigan11 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): 91.9 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 score83.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Bills Medicare through one group practice

  1. Winnebago Tribe OF NebraskaWinnebago, NE

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

Christine Marie James among 676 optometrist records in Iowa

Christine Marie James, OD is one of 676 optometrist records with a practice address in Iowa. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.

  • NPI issued2022 · 94% of these records are older, 5% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2022 · median 2006 among the 462 with a school on file
  • Record last updated2022 · 74% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 optometrist records list a practice address in Sioux City

They are 22 of the 1,486 NPPES records with a practice address in Sioux City, and 676 optometrist records in Iowa.

The 8 optometrist records with the nearest ZIP codes

  1. Christopher Diehl, O.D.Sioux City, IA 511041053607515
  2. David Korver, O.D.Sioux City, IA 511041962453621
  3. Rachel Korver, ODSioux City, IA 511041235023409
  4. Brittany Krause, O.D.Sioux City, IA 511041801148143
  5. Lorayne Middendorp, ODSioux City, IA 511041053390328
  6. Maureen Nelson, O.D.Sioux City, IA 511041245480540
  7. Cal Wiese, ODSioux City, IA 511041356072508
  8. John Kiernan, O.D.Sioux City, IA 511051326046152

Common questions

What is Christine Marie James, OD's NPI number?

Christine Marie James, OD's National Provider Identifier (NPI) is 1992436489, issued on Jun 23, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Christine Marie James, OD located?

The NPPES record lists a practice address at 1909 Hamilton Blvd, Sioux City, IA, 51104. Phone: (712) 252-4333. Providers update this record themselves, so call before visiting.

How can I verify Christine Marie James, OD's license?

NPPES lists Iowa license number 114700, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Christine Marie James, OD prescribe under Medicare Part D?

In 2024, Christine Marie James, OD had 171 Medicare Part D claims for 48 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Christine Marie James, OD's MIPS final score?

The 2023 MIPS final score is 91.9 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.