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

Amy Mertens, DO

Individual provider Internal Medicine Physician · NPI 1235544966

Amy Mertens, DO practises Interventional Cardiology in Denver, Colorado. Qualified in 2014, 12 years ago. Practices with Portercare Adventist Health System, a 767-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado and Michigan.

Years since qualifying
12
Licensed in
CO, MI
In the registry since
2014
Specialties on file
5
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

777 Bannock St
Denver, CO 80204-4597
Phone: (303) 436-4949
Fax: (303) 602-3902
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • Michigan Heart, Livonia, MI 48154 — (734) 462-3233

Specialties & licences

Interventional Cardiology Physician (primary) Taxonomy 207RI0011X · Licence DR.0071112 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 5101021035 (MI)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 5101021035 (MI)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence DR.0071112 (CO)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 5101021035 (MI)

Record details

NPI number1235544966
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 20, 2014
Last updated in NPPESJanuary 7, 2025
Certification dateJanuary 7, 2025

Medicare enrollment

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

Medicare specialtyINTERVENTIONAL CARDIOLOGY
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Portercare Adventist Health System — 767 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations12 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Coronary angioplasty and stenting 62 times · 88th percentile
Pacemaker insertion or repair 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients383
Services billed 598 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Travel and Lodging $3,069 12 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $2,675 44 payments · a meal or drink at a meeting or visit, not a fee
Compensation for serving as faculty or as a speaker for a medical education program $2,200 2 payments
Education $6 1 payment · educational material or training, not a fee

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 Castle Rock Hospital · Castle Rock, CO
  • AdventHealth Littleton Hospital · Littleton, CO
  • AdventHealth Parker Hospital · Parker, CO
  • AdventHealth Porter Hospital · Denver, CO
  • Hca-Healthone Dba Swedish Medical Center Hospital · Englewood, 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.

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