NPPES file of Aug 9, 2026

Jay Markson, MD

Pediatrics Physician · Denver, CO

Jay Markson, MD is a pediatrics physician with a practice address in Denver, Colorado, and NPI 1144289984, issued on Mar 21, 2006. Check the license (Colorado 25663, as entered in NPPES) on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144289984
Name
Jay Markson
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
25663 CO
Self-reported in NPPES; status is on the state search
Practice location
1625 Marion, Denver, CO 80218
Phone
(303) 830-7337
Enumerated
Mar 21, 2006
Record last updated
Mar 24, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(303) 830-1890
Medicaid ID
01256635 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 1625 Marion

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

  1. Cecil Lashlee, MDPediatrics Physician1992772321
  2. Spyridon Papadopoulos, MDPediatrics Physician1619944055
  3. Mary Zavadil, MDPediatrics Physician1740257153

Verify Jay Markson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 25663
    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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Jay Markson among 1,155 pediatrics physician records in Colorado

Jay Markson, 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 not. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 57% newer
  • In a Medicare fileNo · 27% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • Record last updated2011 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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. Karen Leamer, MDDenver, CO 802181356300131
  7. Spyridon Papadopoulos, MDDenver, CO 802181619944055
  8. Cheryl Saipe, MDDenver, CO 802181649386178

Common questions

What is Jay Markson, MD's NPI number?

Jay Markson, MD's National Provider Identifier (NPI) is 1144289984, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jay Markson, MD located?

The NPPES record lists a practice address at 1625 Marion, Denver, CO, 80218. Phone: (303) 830-7337. Providers update this record themselves, so call before visiting.

How can I verify Jay Markson, MD's license?

NPPES lists Colorado license number 25663, 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. 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.