Nathan Eitan, MD
NPI 1609986975 · Endocrinology, Diabetes & Metabolism Physician · Whittier, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Eitan, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Whittier, CA (NPI 1609986975).
Provider details
- NPI number
- 1609986975
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A36074 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-08-30
- Last updated
- 2010-06-24
Frequently asked questions
- What is Nathan Eitan's NPI number?
- Nathan Eitan's National Provider Identifier (NPI) is 1609986975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Eitan's specialty?
- Nathan Eitan is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Eitan located?
- Nathan Eitan's practice location on file with NPPES is 9200 Colima Rd, Whittier, CA 90605.
- What is Nathan Eitan's phone number?
- The practice phone number listed in the NPPES registry for Nathan Eitan is (562) 945-2833.
- Does Nathan Eitan accept Medicare?
- Nathan Eitan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Eitan's NPI active?
- Yes — Nathan Eitan's NPI (1609986975) is active in the NPPES registry as of the last update on 2010-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.