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Ion Sima, MD
NPI 1598743932 · Internal Medicine Physician · Anaheim, CA
Ion Sima, MD is a Internal Medicine Physician provider in Anaheim, CA (NPI 1598743932).
Provider details
- NPI number
- 1598743932
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A54836 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
1781 W Romneya Dr
Ste B
Anaheim, CA 92801-1818
Phone: (714) 776-8273
Fax: (714) 776-8974
Street-level locationGet directions
Mailing address
Po Box 1307
Bellflower, CA 90707-1307
Registry dates
- Enumerated
- 2006-01-05
- Last updated
- 2008-06-05
Frequently asked questions
- What is Ion Sima's NPI number?
- Ion Sima's National Provider Identifier (NPI) is 1598743932, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ion Sima's specialty?
- Ion Sima is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ion Sima located?
- Ion Sima's practice location on file with NPPES is 1781 W Romneya Dr, Anaheim, CA 92801-1818.
- What is Ion Sima's phone number?
- The practice phone number listed in the NPPES registry for Ion Sima is (714) 776-8273.
- Is Ion Sima's NPI active?
- Yes — Ion Sima's NPI (1598743932) is active in the NPPES registry as of the last update on 2008-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.