John Charles Harris, MD
Internal Medicine Physician · Centennial, CO
John Charles Harris, MD is an internal medicine physician with a practice address in Centennial, Colorado, and NPI 1730206434, issued on Mar 26, 2007. Check the license (Colorado 23021, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Charles Harris
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 23021 CO
Self-reported in NPPES; status is on the state search - Practice location
- 12150 E Briarwood Ave Ste 105, Centennial, CO 80112
- Phone
- (303) 790-1999
- Enumerated
- Mar 26, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (303) 790-4866
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Verify John Charles Harris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 23021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
86 Medicare Part D claims for 14 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Atorvastatin Calcium16 claims
- Rosuvastatin Calcium15 claims
- Allopurinol11 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.
Industry payments in 2024: $222.60
1 payment: food and beverage; the largest payer was Aimmune Therapeutics, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Charles Harris among 2,046 internal medicine physician records in Colorado
John Charles Harris, 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 fileNo · 53% of these records are
- Record last updated2007 · 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).
Internal Medicine Physician providers in Colorado
There are 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Centennial → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alan Aboaf, MDCentennial, CO 801121003866393
- Arthur Burroughs, MDCentennial, CO 801121770533911
- Thomas Gilmer, M.D.Centennial, CO 801121750331930
- Jae Lee, DO LLCCentennial, CO 801121114918588
- John Pack, MDCentennial, CO 801121184654972
- Sindhura PisipatiGreenwood Village, CO 801121336644988
- Vaishnavi Pochineni, MDGreenwood Village, CO 801121982037206
- Jacques Saari, M.D.Centennial, CO 801121083741391
Common questions
What is John Charles Harris, MD's NPI number?
John Charles Harris, MD's National Provider Identifier (NPI) is 1730206434, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Charles Harris, MD located?
The NPPES record lists a practice address at 12150 E Briarwood Ave Ste 105, Centennial, CO, 80112. Phone: (303) 790-1999. Providers update this record themselves, so call before visiting.
How can I verify John Charles Harris, MD's license?
NPPES lists Colorado license number 23021, 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 John Charles Harris, MD prescribe under Medicare Part D?
In 2024, John Charles Harris, MD had 86 Medicare Part D claims for 14 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.