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

Mark S Romoff, MD

Individual provider Internal Medicine Physician · NPI 1578543179

Mark S Romoff, MD practises Nephrology in Van Nuys, California. Graduated from Medical College of Georgia School of Medicine in 1973, 53 years ago. Practices with Cedars-Sinai Medical Care Foundation, a 1,696-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
53
Trained at
Medical College of Georgia School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

15211 Vanowen St Ste 315
Van Nuys, CA 91405-3606
Phone: (818) 787-2410
Fax: (818) 756-0723
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence G27803 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G27803 (CA)

Record details

NPI number1578543179
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 19, 2006
Last updated in NPPESSeptember 13, 2017

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolMEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE
Graduated 1973 (53 years in practice)
Group practice Cedars-Sinai Medical Care Foundation — 1696 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 patients707
Services billed 20,494 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 $239 9 payments · a meal or drink at a meeting or visit, not a fee
Education $38 2 payments · educational material or training, 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 Cedars-Sinai Medical Care Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1696 clinicians in the practice; 12 are shown here.

Other providers in Van Nuys