Christopher Chalian, M.D.
NPI 1235183484 · Orthopaedic Surgery Physician · Pomona, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Chalian, M.D. is a Orthopaedic Surgery Physician provider in Pomona, CA (NPI 1235183484).
Provider details
- NPI number
- 1235183484
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- A45892 (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
20 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
- 2006-05-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Christopher Chalian's NPI number?
- Christopher Chalian's National Provider Identifier (NPI) is 1235183484, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Chalian's specialty?
- Christopher Chalian is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Chalian located?
- Christopher Chalian's practice location on file with NPPES is 2776 N Garey Ave, Pomona, CA 91767-1810.
- What is Christopher Chalian's phone number?
- The practice phone number listed in the NPPES registry for Christopher Chalian is (909) 593-7437.
- Does Christopher Chalian accept Medicare?
- Christopher Chalian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Chalian's NPI active?
- Yes — Christopher Chalian's NPI (1235183484) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.