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

Nathan B Green, DO

Individual provider Hematology & Oncology Physician · NPI 1679563936

Nathan B Green, DO practises Medical Oncology in Lincoln, Nebraska. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1998, 28 years ago. Practices with CHI Health Clinic Specialty LLC, a 312-clinician group and accepts Medicare assignment. Licensed in Nebraska.

Years since qualifying
28
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
Licensed in
NE
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

4101 Tiger Lily Rd Ste 100
Lincoln, NE 68516-5587
Phone: (402) 420-7000
Fax: (402) 420-6969
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 343 (NE)

Record details

NPI number1679563936
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 26, 2005
Last updated in NPPESMarch 16, 2024
Certification dateMarch 16, 2024

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 1998 (28 years in practice)
Group practice Chi Health Clinic Specialty Llc — 312 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients1,018
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 $1,688 90 payments · a meal or drink at a meeting or visit, not a fee
Education $45 2 payments · educational material or training, 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.

Colleagues at CHI Health Clinic Specialty LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 312 clinicians in the practice; 12 are shown here.

Other providers in Lincoln