Barbara Hollander, RD, MD
NPI 1003256892 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Hollander, RD, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1003256892).
Provider details
- NPI number
- 1003256892
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- RD, MD
- Sex
- Female
- Sole proprietor
- No
- License
- 3422 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Dietary & Nutritional Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-06-26
- Last updated
- 2022-09-02
- Certified
- 2022-09-01
Frequently asked questions
- What is Barbara Hollander's NPI number?
- Barbara Hollander's National Provider Identifier (NPI) is 1003256892, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Hollander's specialty?
- Barbara Hollander is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Hollander located?
- Barbara Hollander's practice location on file with NPPES is 8730 Alden Drive, Los Angeles, CA 90048.
- What is Barbara Hollander's phone number?
- The practice phone number listed in the NPPES registry for Barbara Hollander is (310) 423-8056.
- Does Barbara Hollander accept Medicare?
- Barbara Hollander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Hollander's NPI active?
- Yes — Barbara Hollander's NPI (1003256892) is active in the NPPES registry as of the last update on 2022-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.