Doctor profile · Federal record

Dr. Mary Horner, PA-C

Physician Assistant · Lewes, DE

  • NPI 1366803645
  • Accepts Medicare
  • 11 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
33672 Bayview Medical Dr Fl 1
Lewes, DE 199581687
(302) 645-2437
fax (833) 629-0820

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
November 8, 2024
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Delaware #C5-0001050
Medicaid
PA #103366963001

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366803645. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
170
Distinct HCPCS
3
Medicare allowed
$20,200
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 121 80 $108
99215 Established patient office or other outpatient visit, 40-54 minutes 28 26 $151
99204 New patient office or other outpatient visit, 45-59 minutes 21 21 $141

In context: peer comparison

Among 13 peers in Lewes Physician Assistant, average services per provider: 353. This provider delivers 0.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$305
Transactions
14
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 4 $74.61
Eisai INC. 2 $49.25
Abbvie INC. 2 $42.77
Kyowa Kirin, INC. 2 $38.99
Alexion Pharmaceuticals, INC. 1 $36.31
Amneal Pharmaceuticals LLC 1 $26.93
Lilly USA, LLC 1 $21.85
Neurelis, INC. 1 $13.79

By nature of payment

Food and Beverage
$305

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
196
Patients
38
Total drug cost
$5,621
Drug Type Claims Patients Total cost
Memantine Hcl Generic 49 15 $2,338
Topiramate Generic 38 12 $391
Donepezil Hcl Generic 32 11 $576
Gabapentin Generic 30 0 $627
Sumatriptan Succinate Generic 19 0 $509
Carbidopa-Levodopa (Carbidopa/Levodopa) Brand 14 0 $485
Levetiracetam Generic 14 0 $696

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Horner's medical specialty?
Dr. Mary Horner practices Physician Assistant in Lewes, DE.
Where does Dr. Mary Horner practice?
Dr. Mary Horner practices at 33672 Bayview Medical Dr Fl 1, Lewes, DE 199581687. Office phone: 3026452437.
What is Dr. Mary Horner's NPI?
Dr. Mary Horner's National Provider Identifier (NPI) is 1366803645, issued by NPPES.
Does Dr. Mary Horner accept Medicare assignment?
Yes. Dr. Mary Horner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Horner commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.