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

Nathaniel Greenwood, DO

Individual provider Emergency Medicine Physician · NPI 1770798563

Nathaniel Greenwood, DO is registered under General Practice in Cedar Park, Texas. Graduated from Pennsylvania State University College of Medicine in 2008, 18 years ago. Practices with Nebraska Medical Clinics PLLC, a 2-clinician group and works from 2 locations. Licensed in Nebraska, Pennsylvania and Texas.

Years since qualifying
18
Trained at
Pennsylvania State University College of Medicine
Licensed in
NE, PA, TX
In the registry since
2007
Specialties on file
4
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3620 E Whitestone Blvd
Cedar Park, TX 78613-7441
Phone: (512) 260-2732
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)

  • 14404 Stoney Brook Blvd, Omaha, NE 68137-2613 — (512) 506-8503

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence P2863 (TX)
Emergency Medicine Physician Taxonomy 207P00000X · Licence OT011248 (PA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 2008 (NE)
General Practice Physician Taxonomy 208D00000X · Licence 2008 (NE)

Record details

NPI number1770798563
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 14, 2007
Last updated in NPPESMarch 25, 2026
Certification dateMarch 25, 2026

Medicare enrollment

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

Medicare specialtyGENERAL PRACTICE
Also practisesEMERGENCY MEDICINE
Medical schoolPENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Nebraska Medical Clinics Pllc — 2 clinicians
Accepts Medicare assignment Not indicated
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 patients24
Services billed 64 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 $17 1 payment · 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 Nebraska Medical Clinics PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Cedar Park