Doctor profile · Federal record

Dr. JOHN ALEXANDER, M.D.

Internal Medicine Physician (CMS: INTERNAL MEDICINE) · Pediatrics Physician · NASHUA, NH

  • NPI 1144259508
  • Accepts Medicare
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
17 PROSPECT ST
NASHUA, NH 030603956
(603) 594-6337
fax (603) 594-6330
Mailing address
PO BOX 3677
NASHUA, NH 030613677

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
April 7, 2014
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New Hampshire #13445
Medicaid
NH #3079234

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144259508. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
271
Distinct HCPCS
5
Medicare allowed
$30,203
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 131 75 $128
99213 Established patient office or other outpatient visit, 20-29 minutes 69 57 $90
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 47 47 $129
G0008 Administration of influenza virus vaccine 13 13 $31
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 11 11 $75

In context: peer comparison

Among 25 peers in this city , average services per provider: 105. This provider delivers 2.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
840
Patients
162
Total drug cost
$14,944
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 120 38 $1,672
Amlodipine Besylate Generic 74 21 $554
Gabapentin Generic 71 19 $1,095
Omeprazole Generic 68 16 $747
Levothyroxine Sodium Generic 61 17 $1,022
Oxycodone Hcl Generic 53 0 $1,965
Pantoprazole Sodium Generic 53 0 $679
Alprazolam Generic 49 0 $481
Duloxetine Hcl Generic 48 0 $2,147
Lisinopril Generic 47 12 $227