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

John Herndon

Individual provider Neurology Physician · NPI 1518387398

John Herndon practises Neurology in Portland, Oregon. Graduated from Icahn School of Medicine at Mount Sinai in 2014, 12 years ago. Practices with Billings Clinic, a 805-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Montana, North Carolina and Oregon.

Years since qualifying
12
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
MT, NC, OR
In the registry since
2014
Specialties on file
3
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Practice location Address checks out

3181 SW Sam Jackson Park Rd
Portland, OR 97239-3011
Phone: (503) 494-7772
Fax: (503) 418-9276
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 101 Manning Dr, Chapel Hill, NC 27516 — (919) 843-3133

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence MD218422 (OR)
Neurology Physician Taxonomy 2084N0400X · Licence MED-PHYS-LIC-77300 (MT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 201814 (NC)

Record details

NPI number1518387398
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 21, 2014
Last updated in NPPESJanuary 2, 2024
Certification dateJanuary 2, 2024

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2014 (12 years in practice)
Group practice Billings Clinic — 805 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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.

Skin biopsy 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 patients159
Services billed 299 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 $382 4 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.

  • Billings Clinic Hospital Hospital · Billings, MT · listed as Billings Clinic
  • Intermountain Health St Vincent Regional Hospital Hospital · Billings, MT

Colleagues at Billings Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 805 clinicians in the practice; 12 are shown here.

Other providers in Portland