Doctor profile · Federal record

Dr. Katrina Allen, PA-C

Physician Assistant · Windham, NH

  • NPI 1336613181
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
125 Indian Road Road
Windham, NH 03087
(603) 890-6330
fax (603) 458-7626
Additional location
7 1/2 Olesen RD
Derry, NH 030384847
(603) 489-3162
Mailing address
360 US Highway 1 Byp Unit 102
Portsmouth, NH 038017105

Credentials & registration

NPPES · NUCC
NPI registered
January 2019 — 7 yrs on file
Profile last updated
November 14, 2023
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
New Hampshire #1477

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336613181. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
258
Distinct HCPCS
8
Medicare allowed
$19,602
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 56 53 $108
99204 New patient office or other outpatient visit, 45-59 minutes 47 47 $142
99213 Established patient office or other outpatient visit, 20-29 minutes 35 35 $77
87804 Detection test by immunoassay with direct visual observation for influenza virus 30 15 $16
99203 New patient office or other outpatient visit, 30-44 minutes 29 29 $96
81003 Automated urinalysis test 24 22 $2
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 22 21 $16
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 15 15 $35

In context: peer comparison

Among 3 peers in Windham Physician Assistant, average services per provider: 26. This provider delivers 9.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$94
Transactions
4
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 4 $93.83

By nature of payment

Food and Beverage
$94

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
128
Patients
126
Total drug cost
$956
Drug Type Claims Patients Total cost
Prednisone Generic 37 37 $83
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 27 27 $227
Cephalexin Generic 24 23 $162
Azithromycin Generic 17 16 $100
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 12 12 $253
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 11 11 $131

Frequently asked questions

Auto-generated from federal data
What is Dr. Katrina Allen's medical specialty?
Dr. Katrina Allen practices Physician Assistant in Windham, NH.
Where does Dr. Katrina Allen practice?
Dr. Katrina Allen practices at 125 Indian Road Road, Windham, NH 03087. Office phone: 6038906330.
What is Dr. Katrina Allen's NPI?
Dr. Katrina Allen's National Provider Identifier (NPI) is 1336613181, issued by NPPES.
Does Dr. Katrina Allen accept Medicare assignment?
Yes. Dr. Katrina Allen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katrina Allen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.