Doctor profile · Federal record

Dr. Patrick Nguyen, DO

Family Medicine Physician (CMS: Family Practice) · Merrimack, NH

  • NPI 1841256559
  • Accepts Medicare
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
399 Daniel Webster Hwy
Merrimack, NH 030544112
(603) 429-3155
fax (603) 424-8693
Mailing address
696 Daniel Webster Hwy
Merrimack, NH 030542748

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
December 13, 2016
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
New Hampshire #14089
Medicaid
PA #001708039

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841256559. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
774
Distinct HCPCS
10
Medicare allowed
$77,473
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 251 138 $125
99213 Established patient office or other outpatient visit, 20-29 minutes 135 96 $88
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 128 128 $129
83036 Hemoglobin a1c level 73 55 $9
99215 Established patient office or other outpatient visit, 40-54 minutes 67 54 $175
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 20 19 $15
81002 Urinalysis, manual test 19 19 $3
G0008 Administration of influenza virus vaccine 19 19 $31
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 18 18 $75
G0296 Counseling visit to discuss need for lung cancer screening using low dose ct scan (ldct) (service is for eligibility determination and shared decision making) 18 17 $28

In context: peer comparison

Among 7 peers in this city , average services per provider: 85. This provider delivers 9.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$190
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 1 $112.16
Gilead Sciences, Inc. 1 $78.24

By nature of payment

Food and Beverage
$190

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
776
Patients
287
Total drug cost
$8,357
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 97 44 $992
Amlodipine Besylate Generic 85 39 $696
Lisinopril Generic 76 30 $515
Simvastatin Generic 68 24 $451
Levothyroxine Sodium Generic 60 25 $652
Losartan Potassium Generic 56 23 $776
Alprazolam Generic 51 0 $130
Omeprazole Generic 46 21 $621
Lorazepam Generic 43 16 $139
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 37 17 $1,209

Frequently asked questions

Auto-generated from federal data
What is Dr. Patrick Nguyen's medical specialty?
Dr. Patrick Nguyen practices Family Medicine Physician in Merrimack, NH.
Where does Dr. Patrick Nguyen practice?
Dr. Patrick Nguyen practices at 399 Daniel Webster Hwy, Merrimack, NH 030544112. Office phone: 6034293155.
What is Dr. Patrick Nguyen's NPI?
Dr. Patrick Nguyen's National Provider Identifier (NPI) is 1841256559, issued by NPPES.
Does Dr. Patrick Nguyen accept Medicare assignment?
Yes. Dr. Patrick Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patrick Nguyen 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 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.