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

Dr. Sergio G Demier, DO

Individual provider Family Medicine Physician · NPI 1558422337

Dr. Sergio G Demier, DO is a Family Practice in Seminole, Oklahoma. Graduated from Oklahoma State University College of Osteopathic Medicine in 1993, 33 years ago. Practices with Cimarron Memorial Hospital and Nursing Home, a 7-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
33
Trained at
Oklahoma State University College of Osteopathic Medicine
Licensed in
OK
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.

See every abbreviation used in this directory →

Practice location Address checks out

2403 W Wrangler Blvd Ste A
Seminole, OK 74868-1900
Phone: (405) 382-4939
Fax: (405) 382-4947
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 3350 (OK)

Record details

NPI number1558422337
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedDecember 13, 2006
Last updated in NPPESJuly 8, 2007
Mailing address2403 W Wrangler Blvd Ste A, Seminole, OK 74868-1900

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesEMERGENCY MEDICINE
Medical schoolOKLAHOMA STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1993 (33 years in practice)
Group practice Cimarron Memorial Hospital And Nursing Home — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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