Medicare Part D drug Data year 2024 Generic name Source: CMS Part D Prescribers

Diphenhydramine Hcl

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Part D claims

35,464

Prescriptions dispensed, refills included

Drug cost

$937,687

Paid at the pharmacy, in all

Prescribers

1,318

With 11 or more claims of it

In 2024, Medicare Part D recorded 35,464 claims for Diphenhydramine Hcl from 1,318 prescribers, at a total drug cost of $937,687 paid at the pharmacy by Medicare, patients and others.

Where it is prescribed

By the prescriber's state · 51 states and territories
Part D claims for Diphenhydramine Hcl by the state of the prescriber, 2024
State Relative to the most Prescribers Claims Drug cost
CA 222 6,395 $129,365
FL 111 3,202 $65,273
NY 69 2,648 $34,537
TX 87 1,979 $39,388
IL 45 1,703 $45,681
PA 52 1,338 $39,641
GA 54 1,069 $33,354
KY 12 949 $65,749
PR 35 909 $9,759
WA 29 900 $28,664
NJ 41 880 $11,843
MA 29 839 $33,291
OH 33 839 $26,551
AL 37 768 $11,944
AZ 30 732 $17,044
The other 36 states and territories
State Prescribers Claims Drug cost
TN 28 667 $19,069
MN 16 659 $26,444
CO 24 650 $37,168
MI 35 647 $22,282
NC 32 621 $30,644
MS 25 618 $5,739
OR 14 559 $16,019
VA 28 556 $20,092
MO 22 526 $13,241
LA 22 521 $3,460
IN 22 440 $15,405
OK 16 374 $20,503
NV 17 374 $3,233
UT 12 358 $10,165
ME 11 356 $35,480
WI 14 334 $13,271
MD 10 308 $3,943
AR 14 272 $3,269
SC 11 231 $9,727
CT 10 178 $2,530
DC 5 160 $1,714
IA 6 118 $3,040
KS 7 116 $5,093
ID 3 113 $3,274
NM 3 110 $1,198
NE 6 110 $4,498
DE 5 105 $1,062
WV 5 66 $2,008
RI 1 37 $1,446
NH 2 31 $1,375
ND 1 27 $3,266
AK 1 19 $3,158
SD 1 15 $348
VI 1 14 $60
HI 1 13 $70
WY 1 11 $2,312

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 50
Part D claims for Diphenhydramine Hcl by prescriber specialty, 2024
Specialty Relative to the most Prescribers Claims Drug cost
Neurology 227 4,899 $48,724
Hematology-Oncology 131 4,704 $32,086
Internal Medicine 168 4,503 $189,695
Family Practice 145 3,852 $160,818
Nurse Practitioner 141 3,436 $101,776
Gastroenterology 60 2,906 $139,693
Allergy/ Immunology 55 1,698 $89,784
Rheumatology 65 1,191 $10,243
Physician Assistant 40 1,112 $30,617
Psychiatry 45 1,083 $14,872
Infectious Disease 48 891 $18,140
Medical Oncology 18 855 $5,520
General Practice 15 558 $15,168
Psychiatry & Neurology 24 479 $4,812
Nephrology 13 403 $12,370

Specialty is the one printed on each prescriber's Medicare claims.

Largest prescribers

First 5 of 100 by claims · 2024

Two 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.

The prescribers with the most Part D claims of this drug in 2024
Prescriber Specialty State Claims Drug cost Related payments
Abigail Stocker Gastroenterology KY 718 $61,310 None on record
Zili He Hematology-Oncology NY 467 $1,191 None on record
Shijun XI Allergy/ Immunology CA 281 $20,086 None on record
Ratesh Khillan Medical Oncology NY 277 $976 None on record
George Urban Internal Medicine IL 252 $6,705 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 Patron

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.

Provenance

Source: CMS Medicare Part D Prescribers by Provider and Drug · data year 2024

We reproduce what CMS published. We do not verify, edit or correct the underlying records.

A prescription record is not evidence of wrongdoing, and nothing here is medical advice. Who Paid My Doc is independent and is not affiliated with, endorsed by or sponsored by CMS or any U.S. government agency.

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