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

Dr. Joseph Richard Zacharias, DDS, MD

Individual provider Oral & Maxillofacial Surgery (D.M.D.) · NPI 1124478003

Dr. Joseph Richard Zacharias, DDS, MD practises Maxillofacial Surgery in Nashville, Tennessee. Graduated from Harvard School of Dental Medicine in 2019, 7 years ago. Practices with Oral Surgical Institute PC, a 2-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and Tennessee.

Years since qualifying
7
Trained at
Harvard School of Dental Medicine
Licensed in
MA, TN
In the registry since
2016
Specialties on file
3
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 20th Ave N Ste 100
Nashville, TN 37203-2135
Phone: (615) 329-4401
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 125 Cool Springs Blvd Ste 120, Franklin, TN 37067-6475 — (615) 778-0902

Specialties & licences

Oral & Maxillofacial Surgery (D.M.D.) (primary) Taxonomy 204E00000X · Licence 11680 (TN)
Oral & Maxillofacial Surgery (D.M.D.) Taxonomy 204E00000X · Licence DL12925 (MA)
Oral & Maxillofacial Surgery (D.M.D.) Taxonomy 204E00000X · Licence 65221 (TN)

Record details

NPI number1124478003
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS , MD
Sole proprietorNo
NPI enumeratedJune 21, 2016
Last updated in NPPESJuly 11, 2022
Certification dateJuly 11, 2022

Medicare enrollment

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

Medicare specialtyMAXILLOFACIAL SURGERY
Also practisesORAL SURGERY
Medical schoolHARVARD SCHOOL OF DENTAL MEDICINE
Graduated 2019 (7 years in practice)
Group practice Oral Surgical Institute Pc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Melanoma (skin cancer) excision 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 patients58
Services billed 104 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 $168 2 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 Oral Surgical Institute PC

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

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