Heidi Chang Xavier, MD
Internal Medicine Physician · Denver, CO
Heidi Chang Xavier, MD is an internal medicine physician with a practice address in Denver, Colorado, and NPI 1134275720, issued on Jan 26, 2007. Check the license (Colorado 47571, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Heidi Chang Xavier
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 47571 CO
Self-reported in NPPES; status is on the state search - Practice location
- 10350 E Dakota Ave, Denver, CO 80247
- Phone
- (303) 338-4545
- Enumerated
- Jan 26, 2007
- Record last updated
- Jul 15, 2026
- Medicaid ID
- 35427531 CO
- Medicare enrollment
- Enrolled (PECOS I20101206001303); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 10350 E Dakota Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Heidi Chang Xavier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 47571Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average internal medicine physician in 2024
3,053 Medicare Part D claims for 611 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 55 claims were for opioids.
Most prescribed
- Atorvastatin Calcium200 claims
- Levothyroxine Sodium191 claims
- Omeprazole120 claims
- Amlodipine Besylate109 claims
- Lisinopril109 claims
- Pradaxa104 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
- Colorado Permanente Medical Group PCAurora, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heidi Chang Xavier among 2,046 internal medicine physician records in Colorado
Heidi Chang Xavier, 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 39% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2006 · 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).
493 internal medicine physician records list a practice address in Denver
They are 493 of the 25,068 NPPES records with a practice address in Denver, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Denver → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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Common questions
What is Heidi Chang Xavier, MD's NPI number?
Heidi Chang Xavier, MD's National Provider Identifier (NPI) is 1134275720, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Heidi Chang Xavier, MD located?
The NPPES record lists a practice address at 10350 E Dakota Ave, Denver, CO, 80247. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Heidi Chang Xavier, MD's license?
NPPES lists Colorado license number 47571, 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 Heidi Chang Xavier, MD prescribe under Medicare Part D?
In 2024, Heidi Chang Xavier, MD had 3,053 Medicare Part D claims for 611 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.