NPPES file of Aug 9, 2026

Katie L. Loock, O.D.

Optometrist · Saint Louis, MO

Katie L. Loock, O.D. is an optometrist with a practice address in Saint Louis, Missouri, and NPI 1528596566, issued on Jun 2, 2017. Check the license (Missouri 2017020442, as entered in NPPES) with the Missouri 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
1528596566
Name
Katie L. Loock
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
2017020442 MO
Self-reported in NPPES; status is on the state search
Practice location
1225 S Grand Blvd, Saint Louis, MO 63104
Phone
(314) 977-4010
Enumerated
Jun 2, 2017
Record last updated
Oct 29, 2024
Fax
(314) 977-3495
Medicare enrollment
Enrolled (PECOS I20170803002736); accepts Medicare assignment
Medical or professional school
University Of Missouri St Louis - School Of Optometry, 2017
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 1225 S Grand Blvd

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

  1. Ashley Ali, M.D.Orthopaedic Surgery Physician1922340603
  2. Charles Andrus, MDSurgery Physician1689611840
  3. Jastin Antisdel, MDOtolaryngology Physician1073714564
  4. Hossein Asghari, M.D.Ophthalmology Physician1427468818
  5. Rama Atluri, M.D.Rheumatology Physician1063507531
  6. Ashley Berneking, NP-CGerontology Nurse Practitioner1437615044

Verify Katie L. Loock in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2017020442
    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 Missouri 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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30% fewer Medicare Part D claims than the average optometrist in 2024

194 Medicare Part D claims for 54 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Katie Loock194
  2. Specialty average277

Most prescribed

  1. Latanoprost101 claims
  2. Timolol Maleate14 claims
  3. Dorzolamide-Timolol13 claims
  4. Erythromycin12 claims
  5. Restasis12 claims
  6. Travoprost12 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): 81.6 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 score76.1
  2. Costout of 100 · 30%54.3
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Bills Medicare through one group practice

  1. Ophthalmology Consultants LLCSaint Louis, MO

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

Katie L. Loock among 1,242 optometrist records in Missouri

Katie L. Loock, O.D. is one of 1,242 optometrist records with a practice address in Missouri. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 77% of them.

  • NPI issued2017 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2017 · median 2007 among the 768 with a school on file
  • Record last updated2024 · 67% 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 Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Missouri

There are 1,242 optometrist records in Missouri.

The 8 optometrist records with the nearest ZIP codes

  1. Halle Neyens, ODSt Louis, MO 631041275373680
  2. Mariana SaidSaint Louis, MO 631041003600156
  3. Mary Chivetta, ODSaint Louis, MO 631061508418245
  4. Courtney Duberry, ODSaint Louis, MO 631061821602756
  5. Steven Grondalski, O.D.Saint Louis, MO 631061164509071
  6. Jessica Hanson, O.D.Saint Louis, MO 631061689152530
  7. Samuel Killion, ODSaint Louis, MO 631061285366310
  8. Ramya NatarajanSaint Louis, MO 631061073017497

Common questions

What is Katie L. Loock, O.D.'s NPI number?

Katie L. Loock, O.D.'s National Provider Identifier (NPI) is 1528596566, issued on Jun 2, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Katie L. Loock, O.D. located?

The NPPES record lists a practice address at 1225 S Grand Blvd, Saint Louis, MO, 63104. Phone: (314) 977-4010. Providers update this record themselves, so call before visiting.

How can I verify Katie L. Loock, O.D.'s license?

NPPES lists Missouri license number 2017020442, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Katie L. Loock, O.D. prescribe under Medicare Part D?

In 2024, Katie L. Loock, O.D. had 194 Medicare Part D claims for 54 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Katie L. Loock, O.D.'s MIPS final score?

The 2023 MIPS final score is 81.6 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.