Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Grant James Bailey, MD

Individual provider Internal Medicine Physician · NPI 1881919660

Grant James Bailey, MD is registered under Cardiovascular Disease (Cardiology) in Littleton, Colorado. Graduated from Wayne State University School of Medicine in 2010, 16 years ago. Practices with Portercare Adventist Health System, a 767-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Colorado.

Years since qualifying
16
Trained at
Wayne State University School of Medicine
Licensed in
CO
In the registry since
2010
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1000 Southpark Dr
Littleton, CO 80120-5654
Phone: (303) 744-1065
Fax: (303) 733-1699
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 56862 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0056862 (CO)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1881919660
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 5, 2010
Last updated in NPPESAugust 9, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Portercare Adventist Health System — 767 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,437
Services billed 3,681 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $4,164 149 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $3,840 1 payment
Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $1,650 2 payments
Travel and Lodging $766 4 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Adventhealth Avista Hospital · Louisville, CO
  • Adventhealth Castle Rock Hospital · Castle Rock, CO
  • AdventHealth Littleton Hospital · Littleton, CO
  • AdventHealth Parker Hospital · Parker, CO
  • AdventHealth Porter Hospital · Denver, CO

Colleagues at Portercare Adventist Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 767 clinicians in the practice; 12 are shown here.

Other providers in Littleton