Who Paid My Doc
Primidone
Open in the dashboardPart D claims
1,086,637
Drug cost
$25,220,394
Prescribers
32,227
In 2024, Medicare Part D recorded 1,086,637 claims for Primidone from 32,227 prescribers, at a total drug cost of $25.2 million paid at the pharmacy by Medicare, patients and others.
Where it is prescribed
By the prescriber's state · 57 states and territories| State | Relative to the most | Prescribers | Claims | Drug cost |
|---|---|---|---|---|
| FL | 2,701 | 88,184 | $2,057,957 | |
| TX | 2,186 | 79,277 | $1,957,581 | |
| CA | 2,001 | 64,478 | $1,568,976 | |
| OH | 1,601 | 57,976 | $1,224,559 | |
| PA | 1,548 | 52,807 | $1,252,014 | |
| NY | 1,448 | 49,406 | $1,093,768 | |
| GA | 1,070 | 44,193 | $905,180 | |
| TN | 1,122 | 41,513 | $930,075 | |
| MO | 1,036 | 40,970 | $898,046 | |
| NC | 1,129 | 38,013 | $836,187 | |
| MI | 1,174 | 35,927 | $1,090,313 | |
| IL | 1,107 | 35,417 | $777,700 | |
| IN | 915 | 33,029 | $690,748 | |
| AL | 787 | 30,617 | $730,382 | |
| KY | 860 | 30,094 | $573,448 |
The other 42 states and territories
| State | Prescribers | Claims | Drug cost |
|---|---|---|---|
| AZ | 631 | 21,307 | $580,377 |
| AR | 582 | 20,586 | $400,971 |
| VA | 680 | 20,449 | $442,923 |
| LA | 545 | 19,568 | $402,201 |
| NJ | 614 | 19,516 | $490,479 |
| WI | 646 | 19,144 | $517,932 |
| SC | 538 | 17,639 | $459,609 |
| MA | 519 | 16,657 | $433,579 |
| MS | 405 | 16,533 | $318,640 |
| KS | 494 | 16,062 | $306,525 |
| WA | 571 | 14,939 | $356,888 |
| OK | 432 | 14,096 | $315,512 |
| IA | 452 | 13,130 | $308,298 |
| MN | 489 | 13,065 | $347,919 |
| PR | 341 | 12,945 | $326,200 |
| MD | 405 | 12,022 | $297,483 |
| WV | 303 | 11,844 | $248,875 |
| OR | 378 | 10,647 | $281,291 |
| CO | 388 | 9,724 | $254,637 |
| CT | 243 | 9,213 | $204,257 |
| NV | 250 | 7,679 | $170,340 |
| NE | 237 | 7,162 | $153,976 |
| UT | 203 | 5,375 | $160,054 |
| ID | 165 | 4,092 | $75,756 |
| NM | 129 | 3,786 | $102,194 |
| MT | 136 | 3,649 | $79,816 |
| SD | 102 | 3,634 | $74,184 |
| ME | 122 | 3,484 | $93,555 |
| NH | 90 | 3,403 | $74,366 |
| ND | 95 | 3,043 | $76,973 |
| RI | 66 | 2,576 | $71,007 |
| DE | 72 | 2,310 | $66,926 |
| WY | 67 | 1,499 | $34,865 |
| VT | 52 | 1,255 | $31,060 |
| HI | 32 | 1,032 | $32,746 |
| AK | 27 | 764 | $15,912 |
| DC | 33 | 738 | $20,882 |
| VI | 4 | 75 | $2,677 |
| AP | 1 | 55 | $700 |
| XX | 1 | 15 | $243 |
| AE | 1 | 13 | $306 |
| ZZ | 1 | 11 | $326 |
The state is where the prescriber practices, not where the patient lives. Totals are Medicare Part D claims only.
Which specialties prescribe it
Top 15 of 67| Specialty | Relative to the most | Prescribers | Claims | Drug cost |
|---|---|---|---|---|
| Neurology | 6,478 | 436,021 | $11,391,059 | |
| Family Practice | 9,064 | 209,252 | $4,235,253 | |
| Internal Medicine | 7,543 | 183,412 | $3,848,640 | |
| Nurse Practitioner | 5,576 | 156,266 | $3,521,512 | |
| Physician Assistant | 1,633 | 49,423 | $1,199,318 | |
| General Practice | 462 | 9,931 | $199,567 | |
| Geriatric Medicine | 264 | 8,584 | $152,381 | |
| Psychiatry | 185 | 4,612 | $88,217 | |
| Psychiatry & Neurology | 117 | 3,909 | $87,447 | |
| Emergency Medicine | 119 | 3,707 | $61,707 | |
| Hospitalist | 141 | 3,659 | $71,948 | |
| Nephrology | 48 | 1,827 | $37,236 | |
| Pediatric Medicine | 51 | 1,633 | $34,982 | |
| Neuropsychiatry | 30 | 1,572 | $35,395 | |
| Cardiology | 66 | 1,320 | $22,826 |
Specialty is the one printed on each prescriber's Medicare claims.
Largest prescribers
First 5 of 100 by claims · 2024Two separate records. Claims come from Medicare and related payments from Open Payments. They are shown in one row because they name the same product; they do not show that a payment affected a prescription.
| Prescriber | Specialty | State | Claims | Drug cost | Related payments |
|---|---|---|---|---|---|
| Fernando Gonzales Portillo | Neurology | FL | 1,379 | $21,847 | None on record |
| Naga Lakshmana Nidadavolu | Neurology | FL | 800 | $15,814 | None on record |
| Maheep Birdi | Neurology | CA | 701 | $18,136 | None on record |
| Robert Pearlstein | Internal Medicine | PA | 693 | $11,256 | None on record |
| Barry Vaught | Neurology | WV | 656 | $18,584 | None on record |
"No profile" means the prescriber has no Open Payments record here; "None on record" means no payment naming this product in the payment year. Related payments are general payments, and one that names several products is split evenly, so an amount is payments related to the product, not money paid for it. The list is the prescribers with the most claims, up to 100 per drug.
See more in the dashboard: 25 with a free account, all 100 with PatronOther names for primidone
What this means
Medicare Part D is the part of Medicare that covers prescription drugs dispensed at a pharmacy. Each year CMS publishes, for every prescriber and drug, how many claims were dispensed and what they cost. This page adds those up for one drug.
A claim is one prescription filled, refills included. Drug cost is the total paid at the pharmacy by Medicare, the patient and anyone else; it is not money to the prescriber. CMS leaves out any prescriber with fewer than 11 claims of a drug, so the prescriber count is a floor and a missing prescriber does not mean none.
Part D covers drugs dispensed to Medicare beneficiaries at a pharmacy. It does not include drugs given in a clinic or hospital, patients with other insurance, or the most recent year, which Medicare publishes about two years behind.