Has Ramanand Dandillaya, MD received payments from drug or device companies?

Yes. Drug and device makers reported $1,545 in general payments to Ramanand Dandillaya, MD across 37 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Ramanand Dandillaya, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Ramanand Dandillaya, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Ramanand Dandillaya, MD

Neurological Surgery · Santa Maria, CANPI 1508847187

Payments from drug & device makers

$1,545in general payments, 2019–2025

Across 37 payments — averaging $41.77 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Abbott$517
Biogen$120
Biotronik NRO, Inc.$99
Otsuka America Pharmaceutical, Inc.$95
Irhythm Technologies, Inc.$85
SK Life Science, Inc.$60
plus $569 from 17 others

What the payments were for

Food & beverage$1,39790%
Education$14810%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

General payments by program year

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

Company	Payments	Total
Abbott	3	$517
Biogen	2	$120
Biotronik NRO, Inc.	1	$99
Otsuka America Pharmaceutical, Inc.	4	$95
Irhythm Technologies, Inc.	1	$85
SK Life Science, Inc.	2	$60
MDD US Operations, LLC	2	$59
AbbVie	2	$59
Neurocrine Biosciences, Inc.	2	$54
Regeneron Healthcare Solutions, Inc.	2	$48
Novartis	2	$47
Lilly USA, LLC	2	$42
Amarin Pharma, Inc.	2	$41
Mallinckrodt Hospital Products Inc.	1	$34
Teva Pharmaceuticals USA, Inc.	1	$30
Novo Nordisk	1	$26
Livanova USA, Inc.	1	$25
United Therapeutics Corporation	1	$20
Electromed, Inc.	1	$20
Supernus Pharmaceuticals, Inc.	1	$19
Phathom Pharmaceuticals, Inc.	1	$17
Antares Pharma, Inc.	1	$17
EMD Serono, Inc.	1	$12

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

How this compares

$1,545 in reported general payments places this provider in the 35th percentile of 773 neurological surgery providers in California.

See all neurological surgery providers in California →

Medicare billing

Part B allowed, 2024

$15,151

Medicare patients

Services billed

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Most prescribed under Part D

Drug	Claims	Cost to plans & patients
Lacosamide	59	$6,661
Memantine Hcl	274	$5,800
Levetiracetam	117	$4,708
Carbamazepine	27	$3,171
Lamotrigine	99	$2,183
Carbamazepine ErCarbamazepine	20	$1,448
Donepezil Hcl	114	$1,272
Gabapentin	66	$1,253
Carbidopa-LevodopaCarbidopa/Levodopa	36	$1,211
Phenytoin Sodium Extended	36	$1,158
Topiramate	43	$936
Phenobarbital	42	$738
Oxcarbazepine	19	$716
Divalproex Sodium ErDivalproex Sodium	17	$691
Primidone	51	$674

Paid to pharmacies, not to this prescriber.

Other neurological surgery in Santa Maria

Geoffrey ManleySan Francisco$24.9M
Christopher AmesSan Francisco$7.1M
Jamshid SalehRedding$4.1M
Bruce McCormackSan Francisco$3.9M
Andrew SchreiberSanta Ana$3.9M
Larry KhooLos Angeles$3M
Jennie TaylorSan Francisco$2.7M
Joseph CiacciSan Diego$2.6M
Nicholas ButowskiSan Francisco$2.4M
Samy AbdouSan Diego$2.4M

See the full list for California →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

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