NPPES file of Aug 9, 2026

Jason Pereira, MD

Internal Medicine Physician · Littleton, CO

Jason Pereira, MD is an internal medicine physician with a practice address in Littleton, Colorado, and NPI 1003903139, issued on Oct 9, 2006. Check the license (Colorado DR.0061514, 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
1003903139
Name
Jason Pereira
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
DR.0061514 CO
Self-reported in NPPES; status is on the state search
Practice location
8199 Southpark LN Ste 100, Littleton, CO 80120
Phone
(303) 763-4900
Enumerated
Oct 9, 2006
Record last updated
Apr 14, 2026
Medicare enrollment
Enrolled (PECOS I20190904000665); accepts Medicare assignment
Medical or professional school
University Of Tennessee, Hsc, College Of Medicine, 2001
Telehealth
Offers telehealth (CMS)
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 8199 Southpark LN Ste 100

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

  1. Danielle Chamberlain, PA-CPhysician Assistant1134997547
  2. Teng Chang, M.D.Internal Medicine Physician1255312328
  3. Robert Douglas, MDFamily Medicine Physician1366532236
  4. Michelle SpektorMedical Physician Assistant1124759626
  5. Kimberly Winter, MDFamily Medicine Physician1265533814

Verify Jason Pereira in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0061514
    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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2.4 times the Medicare Part D claims of the average internal medicine physician in 2024

7,585 Medicare Part D claims for 911 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 97 claims were for opioids.

  1. Jason Pereira7,585
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium739 claims
  2. Levothyroxine Sodium350 claims
  3. Lisinopril273 claims
  4. Amlodipine Besylate259 claims
  5. Omeprazole258 claims
  6. Valsartan205 claims

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. Optumcare Colorado Medical Group LLCLittleton, CO

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

Jason Pereira among 2,046 internal medicine physician records in Colorado

Jason Pereira, MD is one of 2,046 internal medicine 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 60% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2001 · median 2006 among the 1,090 with a school on file
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

60 internal medicine physician records list a practice address in Littleton

They are 60 of the 3,918 NPPES records with a practice address in Littleton, and 2,046 internal medicine physician records in Colorado.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Teng Chang, M.D.Littleton, CO 801201255312328
  2. Lisa Gidday, MDLittleton, CO 801201518948736
  3. William Gipson, M.D.Littleton, CO 801201023003316
  4. Charles Lee, MDLittleton, CO 801201194706978
  5. Ronald Miller, MDLittleton, CO 801201639153141
  6. Kathleen Weiss, MDLittleton, CO 801201104077585
  7. David Yu, M.D.Littleton, CO 801201114182003
  8. Stephanus Tjan, M.D.Littleton, CO 801211609888429

Common questions

What is Jason Pereira, MD's NPI number?

Jason Pereira, MD's National Provider Identifier (NPI) is 1003903139, issued on Oct 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jason Pereira, MD located?

The NPPES record lists a practice address at 8199 Southpark LN Ste 100, Littleton, CO, 80120. Phone: (303) 763-4900. Providers update this record themselves, so call before visiting.

How can I verify Jason Pereira, MD's license?

NPPES lists Colorado license number DR.0061514, 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 Jason Pereira, MD prescribe under Medicare Part D?

In 2024, Jason Pereira, MD had 7,585 Medicare Part D claims for 911 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.