NPPES file of Aug 9, 2026

Karen Mary Kadler, M.D.

Ophthalmology Physician · Denver, CO

Karen Mary Kadler, M.D. is an ophthalmology physician with a practice address in Denver, Colorado, and NPI 1669574208, issued on Sep 3, 2006. Check the license (Colorado 25087, as entered in NPPES) on the Colorado Medical Board; 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
1669574208
Name
Karen Mary Kadler
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
25087 CO
Self-reported in NPPES; status is on the state search
Practice location
4999 E Kentucky Ave, Denver, CO 80246
Phone
(303) 758-1611
Enumerated
Sep 3, 2006
Record last updated
Mar 7, 2023
Fax
(303) 758-3687
Medicaid ID
01250877 CO
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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8 nearest ophthalmology physician records → All 338 in Colorado → Look up another NPI →

Also registered at 4999 E Kentucky Ave

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

  1. Rebecca Brock, MDOphthalmology Physician1952365397
  2. Nicholas Cole, MDOphthalmology Physician1215974928
  3. Stuart Frankel, M.D.Ophthalmology Physician1871557215
  4. Joel Goldstein, M.D.Ophthalmology Physician1700870458
  5. Tammy Gray, O.D.Optometrist1144428491
  6. Stuart Lewis, MDOphthalmology Physician1700874765

Verify Karen Mary Kadler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 25087    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
Open 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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Industry payments in 2024: $87.32

1 payment: food and beverage; the largest payer was New World Medical,inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Kadler$87.32
  2. Specialty average$4,535.02

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

Karen Mary Kadler among 338 ophthalmology physician records in Colorado

Karen Mary Kadler, M.D. is one of 338 ophthalmology physician records with a practice address in Colorado. 71% 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 20% of them.

  • NPI issued2006 · 20% of these records are older, 45% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2023 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Colorado

There are 338 ophthalmology physician records in Colorado.

All 338 in Colorado → Every provider in Denver → Ophthalmology Physician nationwide →

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Rebecca Brock, MDDenver, CO 802461952365397
  2. Nicholas Cole, MDDenver, CO 802461215974928
  3. Mark Dacey, MDDenver, CO 802461245433259
  4. Stuart Frankel, M.D.Denver, CO 802461871557215
  5. Joel Goldstein, M.D.Denver, CO 802461700870458
  6. Matthew Kruger, MDDenver, CO 802461265603781
  7. Stuart Lewis, MDDenver, CO 802461700874765
  8. Andrew Martin, M.D.Denver, CO 802461881796563

Common questions

What is Karen Mary Kadler, M.D.'s NPI number?

Karen Mary Kadler, M.D.'s National Provider Identifier (NPI) is 1669574208, issued on Sep 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karen Mary Kadler, M.D. located?

The NPPES record lists a practice address at 4999 E Kentucky Ave, Denver, CO, 80246. Phone: (303) 758-1611. Providers update this record themselves, so call before visiting.

How can I verify Karen Mary Kadler, M.D.'s license?

NPPES lists Colorado license number 25087, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.