Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Barbara Erthal Smeral Hollander, RD, MD

Individual provider Registered Dietitian · NPI 1003256892

MS. Barbara Erthal Smeral Hollander, RD, MD practises Internal Medicine in Los Angeles, California. Graduated from Rutgers R W Johnson Medical School (CAM/NEW Bruns/Pisc) in 2019, 7 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group and accepts Medicare assignment. Licensed in California and Massachusetts.

Years since qualifying
7
Trained at
Rutgers R W Johnson Medical School (CAM/NEW Bruns/Pisc)
Licensed in
CA, MA
In the registry since
2013
Specialties on file
3
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

8730 Alden Drive Thalians E220
Los Angeles, CA 90048
Phone: (310) 423-8056
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A179638 (CA)
Registered Dietitian Taxonomy 133V00000X · Licence 3422 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1003256892
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD , MD
Sole proprietorNo
NPI enumeratedJune 26, 2013
Last updated in NPPESSeptember 2, 2022
Certification dateSeptember 1, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolRUTGERS R W JOHNSON MEDICAL SCHOOL (CAM/NEW BRUNS/PISC)
Graduated 2019 (7 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 1–10 times
Upper gastrointestinal (GI) endoscopy for acid reflux 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Southern California Permanente Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 11242 clinicians in the practice; 12 are shown here.

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