Cong Santoso, M.D.
NPI 1659613057 · Internal Medicine Physician · Fairfield, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cong Santoso, M.D. is a Internal Medicine Physician provider in Fairfield, CA (NPI 1659613057).
Provider details
- NPI number
- 1659613057
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- 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 tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2013-03-23
- Last updated
- 2021-12-21
Frequently asked questions
- What is Cong Santoso's NPI number?
- Cong Santoso's National Provider Identifier (NPI) is 1659613057, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cong Santoso's specialty?
- Cong Santoso is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cong Santoso located?
- Cong Santoso's practice location on file with NPPES is 101 Bodin Cir, Fairfield, CA 94535-1809.
- What is Cong Santoso's phone number?
- The practice phone number listed in the NPPES registry for Cong Santoso is (707) 423-7342.
- Does Cong Santoso accept Medicare?
- Cong Santoso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cong Santoso's NPI active?
- Yes — Cong Santoso's NPI (1659613057) is active in the NPPES registry as of the last update on 2021-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.