Dr. Kasra Maasumi, MD

Individual provider Neurology Physician · NPI 1306161963

Dr. Kasra Maasumi, MD practises Neurology in Rancho Santa Margarita, California. Graduated from University of California, Irvine, California College of Medicine in 2010, 16 years ago. Practices with Faculty Physicians and Surgeons of Llusm, a 1,308-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying: 16
Trained at: University of California, Irvine, California College of Medicine
Licensed in: CA
In the registry since: 2010
Specialties on file: 3

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

30212 Tomas Ste 180
Rancho Santa Margarita, CA 92688-2174
Phone: (949) 599-7400
Fax: (949) 599-1430

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

Additional practice locations (2)

11370 Anderson St # B100, Loma Linda, CA 92354-3450 — (909) 558-4000
441 Old Newport Blvd, Newport Beach, CA 92663-4210 — (949) 491-9991

Specialties & licences

Interventional Pain Medicine Physician (primary)	Taxonomy 208VP0014X · Licence A118512 (CA)
Neurology Physician	Taxonomy 2084N0400X · Licence CA118512 (CA)
Pain Medicine (Psychiatry & Neurology) Physician	Taxonomy 2084P2900X · Licence CA118512 (CA)

Record details

NPI number	1306161963
Entity type	Individual (Type 1)
Gender	Male
Credentials	MD
Sole proprietor	Yes
NPI enumerated	April 6, 2010
Last updated in NPPES	March 14, 2023
Certification date	October 18, 2021

Medicare enrollment

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

Medicare specialty	NEUROLOGY
Also practises	PAIN MANAGEMENT
Medical school	UNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated	2010 (16 years in practice)
Group practice	Faculty Physicians And Surgeons Of Llusm — 1308 clinicians
Accepts Medicare assignment	Yes — accepts the Medicare-approved amount
Telehealth	Offers telehealth services
Practice locations	2 on file with Medicare

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 patients	81
Services billed	7,315 a service is one billed item, such as a visit, a test or a procedure
Average patient age	71

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.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program	$9,263 3 payments
Travel and Lodging	$959 3 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage	$230 5 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.

Loma Linda University Medical Center Hospital · Loma Linda, CA

Colleagues at Faculty Physicians and Surgeons of Llusm

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1308 clinicians in the practice; 12 are shown here.

Salman Atalah H Aldakhil, MD Neurological Surgery Physician · Loma Linda, CA
Mrs. Andrea Nicole Ali Physician Assistant · Loma Linda, CA
Dr. Baishakhi Choudhury, MD Student in an Organized Health Care Education/Training Program · Loma Linda, CA
Dr. Ara A. Chrissian, MD Internal Medicine Physician · Loma Linda, CA
Mallory Cohen, MD Pediatric Gastroenterology Physician · Loma Linda, CA
Safwan Gaznabi, MD Cardiovascular Disease Physician · Loma Linda, CA
Sarah Rebecca Johnson, PA-C Physician Assistant · Redlands, CA
Matthew Y. Kushnir, MD Critical Care Medicine (Anesthesiology) Physician · San Diego, CA
Howard Wenhung Lan, DO Student in an Organized Health Care Education/Training Program · Loma Linda, CA
Dr. Rungwasee Rattanavich Internal Medicine Physician · Loma Linda, CA
Dr. Andrea Cristine Salcedo, DO, MPH Obstetrics & Gynecology Physician · Claremont, CA
Delia R Shanahan, NP Nurse Practitioner · Redlands, CA