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

Greg Warren

Nephrology Elizabeth City, NC Doctor of Osteopathy

NPI 1245270131 CMS profile 398437

206 Hastings Lane, Elizabeth City, NC 27909

Open in the dashboard

General payments

$3,148

161 records reported · program years 2019–2025

Research payments

$0

Paid to them · None reported · program years 2019–2025

Ownership & investment interest

$0

None reported

Through program year 2025, Greg Warren of Elizabeth City, NC is reported in the CMS Open Payments database as having received $3,148 across 161 general payments and $0 in research payments paid 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.

General payments for this record sit in the 72nd percentile of Nephrology profiles with reported payments. Percentile describes the distribution, not the conduct.

By program year

7 rows
Year Kind Relative to this record's peak year Amount Records
2025 General $528 26
2024 General $501 26
2023 General $274 15
2022 General $399 23
2021 General $272 15
2020 General $356 14
2019 General $818 42

Beside peers

Year by year, beside peers General payments · among profiles paid that year
  • Greg Warren
  • Nephrology median
  • Middle half of Nephrology
  • National median

In program year 2025, general payments to Greg Warren were reported at $528. Among 8,186 Nephrology profiles paid that year, the median was $310 and the middle half received between $104 and $880.

Show as a table
Year Greg Warren Nephrology median Middle half National median
2019 $818 $236 $90–$588 $163
2020 $356 $135 $46–$364 $114
2021 $272 $202 $67–$551 $132
2022 $399 $242 $77–$695 $149
2023 $274 $254 $84–$766 $160
2024 $501 $300 $99–$852 $164
2025 $528 $310 $104–$880 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. Otsuka America Pharmaceutical, Inc. $577 24 payments
  2. Amgen Inc. $407 21 payments
  3. AstraZeneca Pharmaceuticals LP $329 20 payments
  4. Mallinckrodt Hospital Products Inc. $185 10 payments
  5. Bayer HealthCare Pharmaceuticals Inc. $181 11 payments
  6. Ardelyx, Inc. $176 8 payments
  7. Mallinckrodt Enterprises LLC $160 7 payments
  8. Akebia Therapeutics Inc $147 8 payments
  9. Fresenius USA Marketing, Inc. $141 8 payments
  10. Relypsa, Inc. $139 8 payments
  11. Other $707 36 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Food and Beverage $2,868 150 payments
  2. Education $280 11 payments
Products named General payments · program years 2019–2025
  1. JYNARQUE Nephrology $355 12 payments
  2. FARXIGA $219 13 payments
  3. Parsabiv Nephrology $190 9 payments
  4. ACTHAR Immunology $185 10 payments
  5. Kerendia $181 11 payments
  6. IBSRELA $176 8 payments
  7. ACTHAR Autoimmune And Rare Disease $160 7 payments
  8. Parsabiv Nephrology $157 9 payments
  9. JYNARQUE Nephrology $142 9 payments
  10. Velphoro $141 8 payments
  11. Other $1,325 68 payments

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

Prescribing to Medicare patients

Part D · data year 2024 · 103 drugs

Part D claims

4,930

Median for Internal Medicine: 777

Drug cost

$578,933

Median for Internal Medicine: $73,373

Branded share of claims

18.6%

Median for Internal Medicine: 19.3%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Velphoro Sucroferric Oxyhydroxide Brand 46 $158,156
Eliquis Apixaban Brand 97 $89,750
Januvia Sitagliptin Phosphate Brand 37 $45,910
Ozempic Semaglutide Brand 33 $45,429
Sevelamer Carbonate Generic 94 $30,614
Tresiba Flextouch U-100 Insulin Degludec Brand 43 $25,236
Farxiga Dapagliflozin Propanediol Brand 34 $21,280
Lokelma Sodium Zirconium Cyclosilicate Brand 25 $15,905
Kerendia Finerenone Brand 13 $14,895
Trulicity Dulaglutide Brand 16 $13,721

The 10 drugs with the highest cost, of 103 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 104,182 Part D prescribers listed as Internal Medicine; they describe a distribution and say nothing about conduct.

Billing to Medicare

Part B · data year 2024 · 30 billing codes

Paid by Medicare

$151,191

Of which drugs: $3,829

Medicare patients

736

Average age 74

Services billed

1,923

359 women, 377 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 75%
Chronic kidney disease 68%
Diabetes 56%
Arthritis 49%
Ischemic heart disease 46%
Heart failure 45%
Atrial fibrillation 38%
Depression 29%
Drugs given in the clinic that this provider billed Medicare Part B for
Drug given in the clinic Where Patients Services Paid by Medicare
Vaccine for influenza for injection into muscle 90653 Office 42 42 $3,436

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

First 5 of 16 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
TAVNEOS
  • Amgen Inc. $54
$54 — —
Kerendia
  • Bayer HealthCare Pharmaceuticals Inc. $50
$50 13 —
INJECTAFER
  • Daiichi Sankyo Inc. $49
$49 — —
JYNARQUE
  • Otsuka America Pharmaceutical, Inc. $48
$48 — —
IBSRELA
  • Ardelyx, Inc. $41
$41 — —

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.

See all 16 in the dashboard with a free account

Records

161 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 Nephrology in North Carolina

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.

How to dispute or correct a record