NPPES file of Aug 9, 2026

Diana Lynn McKnight, O.D.

Optometrist · Elk Grove, CA

Diana Lynn McKnight, O.D. is an optometrist with a practice address in Elk Grove, California, and NPI 1457310500, issued on Mar 18, 2006. Check the license (California 11307TPG, as entered in NPPES) with the California 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457310500
Name
Diana Lynn McKnight
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
11307TPG CA
1107T CA
Self-reported in NPPES; status is on the state search
Practice location
8419 Elk Grove-Florin RD, Elk Grove, CA 95624
Phone
(916) 681-1101
Enumerated
Mar 18, 2006
Record last updated
May 14, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(916) 682-8891
Medicaid ID
SD0113070 CA
Medicare enrollment
Enrolled (PECOS I20040806000509); may accept Medicare assignment
Medical or professional school
Southern California College Of Optometry, 1997
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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Verify Diana Lynn McKnight in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 11307TPG
    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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96% fewer Medicare Part D claims than the average optometrist in 2024

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

  1. Diana McKnight12
  2. Specialty average277

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.

Industry payments in 2024: $96.60

1 payment: food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diana McKnight$96.60
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Crystal View Optometry IncGrass Valley, CA

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

Diana Lynn McKnight among 8,308 optometrist records in California

Diana Lynn McKnight, O.D. is one of 8,308 optometrist records with a practice address in California. 67% 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, 66% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated1997 · median 2008 among the 3,573 with a school on file
  • Record last updated2020 · 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

47 optometrist records list a practice address in Elk Grove

They are 47 of the 3,596 NPPES records with a practice address in Elk Grove, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Lynn Buttino, O.D.Elk Grove, CA 956241578657573
  2. John Eliopulos, O.D.Elk Grove, CA 956241619930500
  3. Lee Greenwood, OPTOMETRISTElk Grove, CA 956241952461337
  4. Thuy Ha, O.D.Elk Grove, CA 956241508906272
  5. David Kageyama, ODElk Grove, CA 956241871550574
  6. Andrew Kageyama, ODElk Grove, CA 956241437882636
  7. Amrita Kaler, O.D.Elk Grove, CA 956241033444112
  8. Janice Tamai, ODElk Grove, CA 956241174589949

Common questions

What is Diana Lynn McKnight, O.D.'s NPI number?

Diana Lynn McKnight, O.D.'s National Provider Identifier (NPI) is 1457310500, issued on Mar 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diana Lynn McKnight, O.D. located?

The NPPES record lists a practice address at 8419 Elk Grove-Florin RD, Elk Grove, CA, 95624. Phone: (916) 681-1101. Providers update this record themselves, so call before visiting.

How can I verify Diana Lynn McKnight, O.D.'s license?

NPPES lists California license number 11307TPG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Diana Lynn McKnight, O.D. prescribe under Medicare Part D?

In 2024, Diana Lynn McKnight, O.D. had 12 Medicare Part D claims; the average among optometrist prescribers was 277. 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.