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

Individual provider Family Medicine Physician · NPI 1811989619

Christian C. Sieck, MD is a Family Practice in Norman, Oklahoma. Graduated from University of Oklahoma College of Medicine in 1995, 31 years ago. Practices with Mercy Clinic Oklahoma Communities, a 648-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Oklahoma.

Years since qualifying
31
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2005
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

950 N Porter Ave Ste 300
Norman, OK 73071-6400
Phone: (405) 329-0121
Fax: (405) 292-6099
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 19870 (OK)

Record details

NPI number1811989619
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 17, 2005
Last updated in NPPESJuly 14, 2010
Mailing address950 N Porter Ave, Suite 300, Norman, OK 73071-6400

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Mercy Clinic Oklahoma Communities — 648 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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