Steven Chacko, MD
NPI 1164171799 · Internal Medicine Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Chacko, MD is a Internal Medicine Physician provider in Fountain Valley, CA (NPI 1164171799).
Provider details
- NPI number
- 1164171799
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A189296 (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
4 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
- 2022-03-21
- Last updated
- 2025-08-22
- Certified
- 2025-08-22
Frequently asked questions
- What is Steven Chacko's NPI number?
- Steven Chacko's National Provider Identifier (NPI) is 1164171799, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Chacko's specialty?
- Steven Chacko is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Chacko located?
- Steven Chacko's practice location on file with NPPES is 17360 Brookhurst St, Fountain Valley, CA 92708-3720.
- What is Steven Chacko's phone number?
- The practice phone number listed in the NPPES registry for Steven Chacko is (877) 279-5289.
- Does Steven Chacko accept Medicare?
- Steven Chacko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Chacko's NPI active?
- Yes — Steven Chacko's NPI (1164171799) is active in the NPPES registry as of the last update on 2025-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.