Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Amber Garretson, APRN, CNS

Individual provider Gerontology Clinical Nurse Specialist · NPI 1457812752

Amber Garretson, APRN, CNS is registered under Certified Clinical Nurse Specialist (Cns) in Oklahoma City, Oklahoma. Qualified in 2019, 7 years ago. Practices with Optimum Care Hospitalist Group PLLC, a 22-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
7
Licensed in
OK
In the registry since
2019
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
CNS — Clinical Nurse Specialist
An advanced practice nurse specialising in a patient population or setting.

See every abbreviation used in this directory →

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Practice location Address checks out

5600 N May Ave Ste 310
Oklahoma City, OK 73112-4291
Phone: (855) 229-2211
Fax: (844) 527-9397
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Gerontology Clinical Nurse Specialist (primary) Taxonomy 364SG0600X · Licence R0119887 (OK)

Record details

NPI number1457812752
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , CNS
Sole proprietorNo
NPI enumeratedMarch 28, 2019
Last updated in NPPESMarch 31, 2025
Certification dateMarch 31, 2025

Medicare enrollment

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

Medicare specialtyCERTIFIED CLINICAL NURSE SPECIALIST (CNS)
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Optimum Care Hospitalist Group Pllc — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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 patients46
Services billed 74 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 $18 1 payment · a meal or drink at a meeting or visit, 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. Those with a page here are linked.

  • Hillcrest Medical Center Hospital · Tulsa, OK · listed as Ahs Hillcrest Medical Center LLC
  • Ssm Health St Anthony Hospital - Midwest Hospital · Midwest City, OK
  • Ssm Health St Anthony Hospital - Oklahoma City Hospital · Oklahoma City, OK

Colleagues at Optimum Care Hospitalist Group PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 22 clinicians in the practice; 12 are shown here.

Other providers in Oklahoma City