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

Carolyn Korfiatis, FNP-BC

Individual provider Registered Nurse · NPI 1417373770

Carolyn Korfiatis, FNP-BC is a Nurse Practitioner in Mammoth Lakes, California. Qualified in 2015, 11 years ago. Practices with Providence Health and Services - Washington, a 264-clinician group and accepts Medicare assignment. Licensed in California and New York.

Years since qualifying
11
Licensed in
CA, NY
In the registry since
2014
Specialties on file
3
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

85 Sierra Park Rd
Mammoth Lakes, CA 93546-2073 Not confirmed with CMS for 11 years — call before visiting
Phone: (509) 205-1503
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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 95002589 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 672701-1 (NY)
Registered Nurse Taxonomy 163W00000X · Licence 95036715 (CA)

Record details

NPI number1417373770
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-BC
Sole proprietorYes
NPI enumeratedMarch 11, 2014
Last updated in NPPESJune 30, 2015

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Providence Health And Services - Washington — 264 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients90
Services billed 143 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 $53 2 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Grande Ronde Hospital Hospital · La Grande, OR
  • Kadlec Regional Medical Center Hospital · Richland, WA
  • Dayton General Hospital Hospital · Dayton, WA
  • Providence St Mary Medical Center Hospital · Walla Walla, WA
  • Wallowa Memorial Hospital Hospital · Enterprise, OR

Colleagues at Providence Health and Services - Washington

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 264 clinicians in the practice; 12 are shown here.

Other providers in Mammoth Lakes