Medical Doctor Program year 2025 Reported 2019–2025 Source: CMS Open Payments, 2026 publication

Srikanth Muppidi

Clinical Neurophysiology Stanford, CA Medical Doctor

NPI 1568641736 CMS profile 550216

300 Pasteur Dr, Stanford, CA 94305

Open in the dashboard

General payments

$149,748

136 records reported · program years 2019–2025

Research payments

$18,447

Paid to them · 3 records reported · program years 2019–2025

Ownership & investment interest

$0

None reported

Research they led as principal investigator

$611,709 paid to institutions, not to them · program years 2019–2025

Through program year 2025, Srikanth Muppidi of Stanford, CA is reported in the CMS Open Payments database as having received $149,748 across 136 general payments and $18,447 in research payments paid to them. Separately, studies naming them as principal investigator received $611,709 in research payments, paid to institutions rather than to them.

No combined total General, research and ownership are kept apart. Each is reported under its own rules, and ownership is not money that moved at all but the value of a stake held. A meal, a clinical trial grant and a shareholding do not add up to anything meaningful, so this site does not add them. The principal-investigator line is research money paid to institutions for studies they led — not to them — and is not added to anything either.

General payments for this record sit in the 96th percentile of Clinical Neurophysiology profiles with reported payments. Percentile describes the distribution, not the conduct.

By program year

9 rows
Year Kind Relative to this record's peak year Amount Records
2025 General $31,636 21
2025 Research $1,001 2
2024 General $48,695 39
2023 General $10,642 17
2022 General $40,142 33
2021 General $5,088 2
2020 General $4,681 5
2019 General $8,864 19
2019 Research $17,446 1

Beside peers

Year by year, beside peers General payments · among profiles paid that year
  • Srikanth Muppidi
  • Clinical Neurophysiology median
  • Middle half of Clinical Neurophysiology
  • National median

In program year 2025, general payments to Srikanth Muppidi were reported at $31,636. Among 259 Clinical Neurophysiology profiles paid that year, the median was $435 and the middle half received between $121 and $1,917.

Show as a table
Year Srikanth Muppidi Clinical Neurophysiology median Middle half National median
2019 $8,864 $306 $88–$1,636 $163
2020 $4,681 $299 $85–$1,847 $114
2021 $5,088 $325 $96–$2,308 $132
2022 $40,142 $395 $106–$1,957 $149
2023 $10,642 $388 $120–$1,718 $160
2024 $48,695 $471 $137–$1,931 $164
2025 $31,636 $435 $121–$1,917 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. Alexion Pharmaceuticals, Inc. $44,455 52 payments
  2. Ucb SA $27,489 6 payments
  3. Amgen Inc. $22,120 18 payments
  4. Argenx US, Inc. $18,379 27 payments
  5. UCB, Inc. $12,600 9 payments
  6. Takeda Pharmaceuticals U.S.A., Inc. $9,464 10 payments
  7. Janssen Biotech, Inc. $3,815 1 payment
  8. Merck KGaA $2,813 2 payments
  9. Catalyst Pharmaceuticals, Inc. $2,525 3 payments
  10. Horizon Therapeutics plc $1,800 1 payment
  11. Other $4,290 7 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Consulting Fee $121,908 45 payments
  2. Travel and Lodging $16,473 25 payments
  3. Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $3,960 1 payment
  4. Honoraria $3,955 3 payments
  5. Food and Beverage $3,451 62 payments
Products named General payments · program years 2019–2025
  1. UPLIZNA Inflammation/Rare Disease $19,120 16 payments
  2. ULTOMIRIS $19,056 13 payments
  3. VYVGART $16,757 19 payments
  4. SOLIRIS Rare Disease $14,009 19 payments
  5. Zilbrysq $5,602 1 payment
  6. Soliris Immunology $5,506 11 payments
  7. FIRDAPSE $2,525 3 payments
  8. UPLIZNA Uplizna $1,800 1 payment
  9. Hizentra $1,645 1 payment
  10. Rystiggo $1,600 1 payment
  11. Other $176 2 payments

A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.

Research payments came from Research payments · program years 2019–2025
  1. Alexion Pharmaceuticals, Inc. $17,446 1 payment
  2. Novartis Pharma AG $1,001 2 payments

Prescribing to Medicare patients

Part D · data year 2024 · 29 drugs

Part D claims

1,020

Median for Neurology: 833

Drug cost

$4,431,025

Median for Neurology: $202,670

Branded share of claims

39.5%

Median for Neurology: 25.9%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Vyvgart Efgartigimod Alfa-Fcab Brand 28 $1,295,914
Zilbrysq Zilucoplan Sodium Brand 21 $754,804
Gammagard Liquid Immun Glob G(Igg)/Gly/Iga Ov50 Brand 67 $699,730
Vyvgart Hytrulo Efgartigimod-Hyaluronidas-Qvfc Brand 26 $559,073
Gamunex-C Immune Globul G/Gly/Iga Avg 46 Brand 45 $428,014
Bivigam Immun Glob G(Igg)/Gly/Iga Ov50 Brand 18 $337,863
Privigen Immun Glob G(Igg)/Pro/Iga 0-50 Brand 35 $250,509
Mycophenolic Acid Mycophenolate Sodium Brand 31 $29,313
Pyridostigmine Bromide Er Pyridostigmine Bromide Brand 24 $13,238
Rasuvo Methotrexate/Pf Brand 23 $12,813

The 10 drugs with the highest cost, of 29 counted.

Drug cost is what was paid for the drugs at the pharmacy — by Medicare, the patient and others — and is not money to the prescriber. Medicare Part D only: drugs dispensed to Medicare beneficiaries. A drug with fewer than 11 claims for this prescriber is not published, so a missing drug does not mean zero. The medians are for the 13,695 Part D prescribers listed as Neurology; they describe a distribution and say nothing about conduct.

Billing to Medicare

Part B · data year 2024 · 27 billing codes

Paid by Medicare

$55,386

Medicare's payments for the services billed

Medicare patients

246

Average age 70

Services billed

687

123 women, 123 men among their patients

Share of this provider's Medicare patients with each condition
Condition among their Medicare patients Relative to the most common Share of patients
High blood pressure 63%
Arthritis 55%
Ischemic heart disease 32%
Depression 25%
Diabetes 24%
Chronic kidney disease 23%
Osteoporosis 22%
Cancer 16%

Medicare Part B only: services billed to Medicare. Rows covering fewer than 11 beneficiaries are not published. Only drugs given in the clinic are itemised here; the rest of what this provider billed is in the total above.

Payments and prescribing

4 products · payments 2024

Two separate records. The payments come from Open Payments and the claims from Medicare. They are set side by side because they name the same product; they do not show that a payment affected a prescription.

Products this doctor was paid in connection with in 2024, beside Medicare claims for the same product
Product Paid by Related payments Part D claims Part B services
ULTOMIRIS
  • Alexion Pharmaceuticals, Inc. $10,311
$10,311 — —
VYVGART
  • ARGENX US, INC. $2,303
$2,303 54 —
Rystiggo
  • UCB, Inc. $1,600
$1,600 — —
SOLIRIS
  • Alexion Pharmaceuticals, Inc. $1,180
$1,180 — —

A dash means Medicare published no figure for this doctor and product — fewer than 11 claims, or the product is not covered under that part — which is not the same as none. Payments are general payments only; one that names several products is split evenly between them, so an amount is payments related to the product, not money paid for it.

Records

139 reported

Every payment, record by record

Date, company, amount, what it was for and the product named — filter by year, kind and company, or download as CSV.

Other Clinical Neurophysiology in California

Related records

What this means

U.S. law requires drug and medical device manufacturers to report payments and transfers of value they make to physicians and teaching hospitals. The Centers for Medicare & Medicaid Services publishes that record each year. This page shows what was reported about this person, and nothing else.

An ownership interest is different from the other two. It is not a payment: it is a stake — shares, options, a partnership holding — that a physician or an immediate family member held in a manufacturer during that year. The figure shown is what the stake was reported to be worth.

Research payments frequently pass through a clinician to the institution running a trial, and rarely represent personal income. They should be read differently from general payments.

Provenance

Source: CMS Open Payments · through program year 2025

Data current to program year 2025, from CMS's 2026 publication.

We reproduce what manufacturers reported. We do not verify, edit or correct the underlying records.

A payment record is not evidence of wrongdoing. Financial relationships between industry and medicine are legal, common and often necessary for research. Who Paid My Doc reports what was disclosed; it does not judge it.

Who Paid My Doc is independent and is not affiliated with, endorsed by or sponsored by CMS or any U.S. government agency. It is not a consumer reporting agency and this is not a consumer report; do not use it for decisions covered by the Fair Credit Reporting Act.

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