Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mandie Melissa Graham, ARNP, FNP-C

Individual provider Family Nurse Practitioner · NPI 1851525562

Mandie Melissa Graham, ARNP, FNP-C is a Nurse Practitioner in Tulsa, Oklahoma. Qualified in 2008, 18 years ago. Practices with Mercy Oklahoma Ambulatory Services LLC, a 45-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
18
Licensed in
OK
In the registry since
2009
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

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Practice location Address checks out

6161 S Yale Ave
Tulsa, OK 74136-1902
Phone: (918) 495-2600
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

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 79285 (OK)

Record details

NPI number1851525562
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP , FNP-C
Sole proprietorYes
NPI enumeratedMay 8, 2009
Last updated in NPPESJune 25, 2026
Certification dateJune 25, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Mercy Oklahoma Ambulatory Services Llc — 45 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients147
Services billed 178 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 $23 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.

Colleagues at Mercy Oklahoma Ambulatory Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 45 clinicians in the practice; 12 are shown here.

Other providers in Tulsa