Doctor profile · Federal record

Dr. Caroline Keyser, PA

Physician Assistant · Winchester, VA

  • NPI 1609338078
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
400 Campus Blvd Ste 210
Winchester, VA 226016906
(540) 536-3470
fax (540) 536-3471
Additional location
1840 Amherst St
Winchester, VA 226012808
(540) 536-8700
Mailing address
220 Campus Blvd Ste 210
Winchester, VA 226012889

Credentials & registration

NPPES · NUCC
NPI registered
April 2019 — 7 yrs on file
Profile last updated
April 24, 2023
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Virginia #0110-006606

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609338078. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
226
Distinct HCPCS
4
Medicare allowed
$25,775
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 131 111 $108
99215 Established patient office or other outpatient visit, 40-54 minutes 42 35 $152
99213 Established patient office or other outpatient visit, 20-29 minutes 41 38 $75
44205 Partial removal of small and large bowel with attachment of small and large bowel using an endoscope 12 12 $179

In context: peer comparison

Among 40 peers in this city , average services per provider: 93. This provider delivers 2.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$30
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Avita Medical Americas, Llc 1 $29.77

By nature of payment

Food and Beverage
$30

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
275
Patients
179
Total drug cost
$25,683
Drug Type Claims Patients Total cost
Metronidazole Generic 53 51 $146
Oxycodone Hcl Generic 38 38 $71
Promethazine Hcl Generic 36 33 $34
Enoxaparin Sodium Generic 33 28 $4,278
Erythromycin (Erythromycin Base) Brand 29 29 $2,113
Creon (Lipase/Protease/Amylase) Brand 27 0 $18,569
Levothyroxine Sodium Generic 17 0 $183
Metoprolol Tartrate Generic 16 0 $54
Pantoprazole Sodium Generic 14 0 $171
Omeprazole Generic 12 0 $64

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Caroline Keyser's medical specialty?
Dr. Caroline Keyser practices Physician Assistant in Winchester, VA.
Where does Dr. Caroline Keyser practice?
Dr. Caroline Keyser practices at 400 Campus Blvd Ste 210, Winchester, VA 226016906. Office phone: 5405363470.
What is Dr. Caroline Keyser's NPI?
Dr. Caroline Keyser's National Provider Identifier (NPI) is 1609338078, issued by NPPES.
Does Dr. Caroline Keyser accept Medicare assignment?
Yes. Dr. Caroline Keyser accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Caroline Keyser 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); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.