NPPES file of Aug 9, 2026

Karen Leamer, MD

Pediatrics Physician · Denver, CO

Karen Leamer, MD is a pediatrics physician with a practice address in Denver, Colorado, and NPI 1356300131, issued on Mar 21, 2006. Check the license (Colorado 29625, 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
1356300131
Name
Karen Leamer
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
29625 CO
Self-reported in NPPES; status is on the state search
Practice location
1601 E 19TH Ave, Denver, CO 80218
Phone
(303) 869-2182
Enumerated
Mar 21, 2006
Record last updated
Feb 10, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
01296250 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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Also registered at 1601 E 19TH Ave

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

  1. Margaret Amos, MDObstetrics & Gynecology Physician1932361870
  2. Beverly Anderson, M.D.Neonatal-Perinatal Medicine Physician1134175896
  3. Thomas Anderson, MDPediatrics Physician1346289550
  4. Julie Archibald, PA-CPhysician Assistant1316375157
  5. Keri Bailey, CPNPPediatric Nurse Practitioner1003936121
  6. Rebecca Barkey, REBECCA BARKEY PNNPPerinatal Nurse Practitioner1477596427

Verify Karen Leamer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 29625
    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

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97% fewer Medicare Part D claims than the average pediatrics physician in 2024

11 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.

  1. Karen Leamer11
  2. Specialty average375

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.

Karen Leamer among 1,155 pediatrics physician records in Colorado

Karen Leamer, MD is one of 1,155 pediatrics physician records with a practice address in Colorado. 27% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 57% newer
  • In a Medicare fileYes · 27% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • Record last updated2012 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in Colorado

There are 1,155 pediatrics physician records in Colorado.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Thomas Anderson, MDDenver, CO 802181346289550
  2. Deborah Chen-Becker, M.D.Denver, CO 802181508878554
  3. Susan Hoffman, M.D.Denver, CO 802181538109806
  4. Caroline Kabel-Kotler, DODenver, CO 802181932157419
  5. Cecil Lashlee, MDDenver, CO 802181992772321
  6. Jay Markson, MDDenver, CO 802181144289984
  7. Spyridon Papadopoulos, MDDenver, CO 802181619944055
  8. Cheryl Saipe, MDDenver, CO 802181649386178

Common questions

What is Karen Leamer, MD's NPI number?

Karen Leamer, MD's National Provider Identifier (NPI) is 1356300131, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karen Leamer, MD located?

The NPPES record lists a practice address at 1601 E 19TH Ave, Denver, CO, 80218. Phone: (303) 869-2182. Providers update this record themselves, so call before visiting.

How can I verify Karen Leamer, MD's license?

NPPES lists Colorado license number 29625, 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.

How much does Karen Leamer, MD prescribe under Medicare Part D?

In 2024, Karen Leamer, MD had 11 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.