Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

David Wallenstein

Individual provider Internal Medicine Physician · NPI 1962417386

David Wallenstein is registered under Family Practice in Santa Monica, California. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1997, 29 years ago. Practices with Uc Regents, a 39-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
29
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
CA
In the registry since
2006
Specialties on file
3
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Practice location Address checks out

1920 Colorado Ave
Santa Monica, CA 90404-3414
Phone: (310) 319-4700
Fax: (310) 453-5106
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A81052 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A81052 (CA)
Hospice and Palliative Medicine (Internal Medicine) Physician Taxonomy 207RH0002X · Licence A81052 (CA)

Record details

NPI number1962417386
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJuly 31, 2006
Last updated in NPPESNovember 25, 2019

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1997 (29 years in practice)
Group practice Uc Regents — 39 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients182
Services billed 440 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Uc Regents

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 39 clinicians in the practice; 12 are shown here.

Other providers in Santa Monica