Mary Nixon, MD
NPI 1003307935 · Obstetrics & Gynecology Physician · Norman, OK
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Nixon, MD is a Obstetrics & Gynecology Physician provider in Norman, OK (NPI 1003307935).
Provider details
- NPI number
- 1003307935
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,321 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1237 Alameda StNorman, OK 73071-3006Phone: (405) 632-6688
- 1025 Straka TerOklahoma City, OK 73139-2544Phone: (405) 632-6688
Registry dates
- Enumerated
- 2018-05-26
- Last updated
- 2025-12-22
- Certified
- 2025-12-22
Frequently asked questions
- What is Mary Nixon's NPI number?
- Mary Nixon's National Provider Identifier (NPI) is 1003307935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Nixon's specialty?
- Mary Nixon is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Nixon located?
- Mary Nixon's practice location on file with NPPES is 3440 Rc Luttrell Dr Ste 200, Norman, OK 73072-9005.
- What is Mary Nixon's phone number?
- The practice phone number listed in the NPPES registry for Mary Nixon is (405) 360-1264.
- Does Mary Nixon accept Medicare?
- Mary Nixon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Nixon's NPI active?
- Yes — Mary Nixon's NPI (1003307935) is active in the NPPES registry as of the last update on 2025-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.