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

Daniel Dean Washburn, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1013901461

Daniel Dean Washburn, MD practises Internal Medicine in Enid, Oklahoma. Graduated from University of Oklahoma College of Medicine in 1976, 50 years ago. Practices with St Marys Physician Associates LLC, a 28-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
50
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

615 E Oklahoma Ave Ste 208
Enid, OK 73701-5952
Phone: (580) 242-3090
Fax: (580) 234-2090
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 11337 (OK)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 11337 (OK)

Record details

NPI number1013901461
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 31, 2005
Last updated in NPPESAugust 19, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesENDOCRINOLOGY
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1976 (50 years in practice)
Group practice St Marys Physician Associates Llc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
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 patients523
Services billed 2,276 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at St Marys Physician Associates LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 28 clinicians in the practice; 12 are shown here.