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

Lynn Kirsten Mason, FNP-C

Individual provider Family Nurse Practitioner · NPI 1548447295

Lynn Kirsten Mason, FNP-C is a Nurse Practitioner in Lone Tree, Colorado. Qualified in 2007, 19 years ago. Practices with Ob-Gyn Affiliates, a 66-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
19
Licensed in
CO
In the registry since
2008
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

10103 Ridgegate Pkwy Aspen Bldg Ste #G23
Lone Tree, CO 80124-5520
Phone: (303) 225-0025
Fax: (303) 225-0029
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 168365 (CO)

Record details

NPI number1548447295
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-C
Sole proprietorNo
NPI enumeratedJanuary 24, 2008
Last updated in NPPESOctober 19, 2016

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Ob-Gyn Affiliates — 66 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 $424 18 payments · 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 Ob-Gyn Affiliates

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 66 clinicians in the practice; 12 are shown here.

Other providers in Lone Tree