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

Dr. Karen Pereia Dietz, MD

Individual provider Pediatrics Physician · NPI 1477908382

Dr. Karen Pereia Dietz, MD practises Internal Medicine in Fredericksbrg, Virginia. Graduated from Georgetown University School of Medicine in 2016, 10 years ago. Practices with Southeastern Physician Services PC, a 598-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
10
Trained at
Georgetown University School of Medicine
Licensed in
VA
In the registry since
2016
Specialties on file
2
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

1001 Sam Perry Blvd
Fredericksbrg, VA 22401-4453
Phone: (301) 273-5394
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1250 E Marshall St, Richmond, VA 23298-5051 — (804) 828-9357

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 0101269713 (VA)
Pediatrics Physician Taxonomy 208000000X · Licence 0101269713 (VA)

Record details

NPI number1477908382
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 28, 2016
Last updated in NPPESMarch 26, 2024
Certification dateMarch 26, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Southeastern Physician Services Pc — 598 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients224
Services billed 934 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 $22 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.

Colleagues at Southeastern Physician Services PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 598 clinicians in the practice; 12 are shown here.