Oscar Chan, M.D.
NPI 1598781825 · Surgery Physician · Fort Leonard Wood, MO
Enrolled with Medicare as Order and Referring Only - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oscar Chan, M.D. is a Surgery Physician provider in Fort Leonard Wood, MO (NPI 1598781825).
Provider details
- NPI number
- 1598781825
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101235986 (VA)
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2023-02-08
- Certified
- 2023-02-08
Frequently asked questions
- What is Oscar Chan's NPI number?
- Oscar Chan's National Provider Identifier (NPI) is 1598781825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oscar Chan's specialty?
- Oscar Chan is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Oscar Chan located?
- Oscar Chan's practice location on file with NPPES is 4430 Missouri Ave, Fort Leonard Wood, MO 65473-9098.
- What is Oscar Chan's phone number?
- The practice phone number listed in the NPPES registry for Oscar Chan is (573) 596-1769.
- Does Oscar Chan accept Medicare?
- Oscar Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oscar Chan's NPI active?
- Yes — Oscar Chan's NPI (1598781825) is active in the NPPES registry as of the last update on 2023-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.