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

Dr. Ngozi Adamma Osondu, MD

Individual provider Infectious Disease Physician · NPI 1598778177

Dr. Ngozi Adamma Osondu, MD is registered under Infectious Disease in Phoenix, Arizona. Qualified in 2001, 25 years ago. Practices with Zion Specialty PLLC, a 10-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Arizona.

Years since qualifying
25
Licensed in
AZ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

19841 N 27th Ave Ste 200
Phoenix, AZ 85027-4003 Not confirmed with CMS for 18 years — call before visiting
Phone: (623) 879-7336
Fax: (623) 362-2954
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 31628 (AZ)

Record details

NPI number1598778177
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 14, 2006
Last updated in NPPESFebruary 26, 2008

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Zion Specialty Pllc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 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 patients508
Services billed 2,003 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 $642 39 payments · a meal or drink at a meeting or visit, not a fee
Education $159 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.

Colleagues at Zion Specialty PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10 clinicians in the practice; 7 are shown here.

Other providers in Phoenix