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

Ziad Hanna, DO

Individual provider Surgery Physician · NPI 1023027992

Ziad Hanna, DO practises General Surgery in Ukiah, California. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 2000, 26 years ago. Practices with Ukiah Adventist Hospital, a 135-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
26
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
CA
In the registry since
2006
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

246 Hospital Dr
Ukiah, CA 95482-4533 Not confirmed with CMS for 15 years — call before visiting
Phone: (707) 463-8000
Fax: (707) 463-8006
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 20A9548 (CA)

Record details

NPI number1023027992
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 7, 2006
Last updated in NPPESJune 16, 2011

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 2000 (26 years in practice)
Group practice Ukiah Adventist Hospital — 135 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.

Hernia repair - groin (open) 11 times · 90th percentile
Hernia repair (minimally invasive) 15 times · 82nd percentile
Colonoscopy 67 times · 70th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 61 times · 67th percentile
Melanoma (skin cancer) excision 1–10 times
Removal of tissue 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 patients468
Services billed 1,804 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Travel and Lodging $537 3 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $98 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.

  • Adventist Health Clearlake Hospital · Clearlake, CA · listed as Adventist Health Clearlake Hospital Inc
  • Adventist Health Mendocino Coast Hospital · Fort Bragg, CA
  • Adventist Health Howard Memorial Hospital · Willits, CA
  • Adventist Health Ukiah Valley Hospital · Ukiah, CA
  • Providence Santa Rosa Memorial Hospital Hospital · Santa Rosa, CA

Colleagues at Ukiah Adventist Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 135 clinicians in the practice; 12 are shown here.

Other providers in Ukiah