Mary Oh, MD
NPI 1124683297 · Surgery Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Oh, MD is a Surgery Physician provider in Loma Linda, CA (NPI 1124683297).
Provider details
- NPI number
- 1124683297
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A201891 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 6550 Fannin St Ste Sm1661Houston, TX 77030-2717Phone: (713) 363-9604Fax: (713) 791-5126
Registry dates
- Enumerated
- 2019-05-04
- Last updated
- 2025-08-06
- Certified
- 2025-08-06
Frequently asked questions
- What is Mary Oh's NPI number?
- Mary Oh's National Provider Identifier (NPI) is 1124683297, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Oh's specialty?
- Mary Oh is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Oh located?
- Mary Oh's practice location on file with NPPES is 11370 Anderson St Ste 2100, Loma Linda, CA 92354-3450.
- What is Mary Oh's phone number?
- The practice phone number listed in the NPPES registry for Mary Oh is (909) 558-2822.
- Does Mary Oh accept Medicare?
- Mary Oh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Oh's NPI active?
- Yes — Mary Oh's NPI (1124683297) is active in the NPPES registry as of the last update on 2025-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.