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

Xiaonan Richard Sun, MD, PHD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1295121259

Xiaonan Richard Sun, MD, PHD practises Neurosurgery in Lebanon, New Hampshire. Qualified in 2015, 11 years ago. Practices with Dartmouth-Hitchcock Clinic, a 1,430-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California, New Hampshire and Oregon.

Years since qualifying
11
Licensed in
CA, NH, OR
In the registry since
2015
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Lebanon, NH

No coordinates on file. Search this address in Google Maps

Additional practice locations (2)

  • 300 Stein Plaza Suite 420, Los Angeles, CA 90095-3142 — (310) 825-5111
  • 1208 City Pl, Edgewater, NJ 07020-3142 — (609) 903-9786

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence 31001 (NH)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Neurological Surgery Physician Taxonomy 207T00000X · Licence MD219093 (OR)
Neurological Surgery Physician Taxonomy 207T00000X · Licence A176146 (CA)

Record details

NPI number1295121259
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedApril 7, 2015
Last updated in NPPESDecember 16, 2025
Certification dateDecember 16, 2025

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Dartmouth-Hitchcock Clinic — 1430 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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.

Spinal fusion 13 times · 30th percentile
Laminectomy or laminotomy (partial removal of spine bones) 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 patients43
Services billed 66 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.

Consulting Fee $12,158 2 payments
Travel and Lodging $3,725 19 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $363 6 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.

Colleagues at Dartmouth-Hitchcock Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1430 clinicians in the practice; 12 are shown here.

Other providers in Lebanon