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

Benjamin Nulsen

Individual provider Hospitalist Physician · NPI 1467795377

Benjamin Nulsen practises Gastroenterology in Santa Monica, California. Graduated from Icahn School of Medicine at Mount Sinai in 2013, 13 years ago. Practices with The Regents of the University of California, a 1,414-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California and New York.

Years since qualifying
13
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CA, NY
In the registry since
2013
Specialties on file
3
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Practice location Address checks out

1223 16th St Ste 3100
Santa Monica, CA 90404-1275
Phone: (310) 582-6240
Fax: (424) 259-7789
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1 Gustave L Levy Pl, New York, NY 10029-6504 — (212) 241-1653

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A147910 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence 276855 (NY)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1467795377
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 28, 2013
Last updated in NPPESNovember 4, 2020
Certification dateNovember 4, 2020

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2013 (13 years in practice)
Group practice The Regents Of The University Of California — 1414 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations9 on file with Medicare

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 100 times · 80th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 91 times · 75th percentile

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.

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 patients561
Services billed 1,503 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $39 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

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

Colleagues at The Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1414 clinicians in the practice; 12 are shown here.

Other providers in Santa Monica