NPPES file of Aug 9, 2026

Emmeline Siebert

Optometrist · Centennial, CO

Emmeline Siebert is an optometrist with a practice address in Centennial, Colorado, and NPI 1720514979, issued on May 10, 2017. Check the license (Colorado OPT.0003990, as entered in NPPES) with the Colorado 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
1720514979
Name
Emmeline Siebert
Primary taxonomy
Optometrist 152W00000X
License numbers
OPT.0003990 CO
5301 MA
Self-reported in NPPES; status is on the state search
Practice location
5555 E Arapahoe RD, Centennial, CO 80122
Phone
(303) 338-3800
Enumerated
May 10, 2017
Record last updated
Jan 13, 2025
Medicare enrollment
Enrolled (PECOS I20250303002922); accepts Medicare assignment
Medical or professional school
University Of California - 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 5555 E Arapahoe RD

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

  1. Debbie Andersen, MS, RDRegistered Dietitian1134661937
  2. Christina AragonSpecialist1134324171
  3. Kari BednarchikRegistered Nurse1164714960
  4. Samantha Benning, NPObstetrics & Gynecology Nurse Practitioner1518097377
  5. Joanna Burch, MDDermatology Physician1144323130
  6. Kimberly Butler, LPNLicensed Practical Nurse1023208915

Verify Emmeline Siebert in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license OPT.0003990
    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 Colorado 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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82% fewer Medicare Part D claims than the average optometrist in 2024

49 Medicare Part D claims for 30 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Emmeline Siebert49
  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.

Bills Medicare through one group practice

  1. Colorado Permanente Medical Group PCCentennial, CO

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

Emmeline Siebert among 1,273 optometrist records in Colorado

Emmeline Siebert is one of 1,273 optometrist records with a practice address in Colorado. 72% 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, 21% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2017 · median 2009 among the 750 with a school on file
  • Record last updated2025 · 63% 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 Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

40 optometrist records list a practice address in Centennial

They are 40 of the 3,008 NPPES records with a practice address in Centennial, and 1,273 optometrist records in Colorado.

The 8 optometrist records with the nearest ZIP codes

  1. David Clausen, O.D.Centennial, CO 801221518923341
  2. Dierdre Fogle, O.D.Littleton, CO 801221245227024
  3. Thomas Gosling, O.D.Centennial, CO 801221790883296
  4. Noelani Juba, ODCentennial, CO 801221689701617
  5. Walter Morton, O.D.Centennial, CO 801221134188030
  6. Deborah Murphy, ODCentennial, CO 801221669598298
  7. Eddy Najjar, O.D.Centennial, CO 801221457591786
  8. Brent Pikkula, ODCentennial, CO 801221760547327

Common questions

What is Emmeline Siebert's NPI number?

Emmeline Siebert's National Provider Identifier (NPI) is 1720514979, issued on May 10, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Emmeline Siebert located?

The NPPES record lists a practice address at 5555 E Arapahoe RD, Centennial, CO, 80122. Phone: (303) 338-3800. Providers update this record themselves, so call before visiting.

How can I verify Emmeline Siebert's license?

NPPES lists Colorado license number OPT.0003990, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Emmeline Siebert prescribe under Medicare Part D?

In 2024, Emmeline Siebert had 49 Medicare Part D claims for 30 beneficiaries; 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.