Doctor profile · Federal record

Dr. Richard Nasstrom, D.O.

Psychiatry Physician (CMS: Psychiatry) · Plymouth, NH

  • NPI 1144665712
  • Accepts Medicare
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1 Warren St
Plymouth, NH 032641416
(603) 945-8048
Additional location
111 Church St
Laconia, NH 032463432
(603) 524-1100

Credentials & registration

NPPES · NUCC
NPI registered
May 2013 — 13 yrs on file
Profile last updated
March 6, 2020
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
New Hampshire #18336

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144665712. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
215
Distinct HCPCS
2
Medicare allowed
$20,254
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 131 21 $113
90833 Psychotherapy with evaluation and management visit, 30 minutes 84 16 $65

In context: peer comparison

Among 1 peers in this city , average services per provider: 107. This provider delivers 2.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$93
Transactions
5
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 3 $49.28
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) 2 $44.03

By nature of payment

Food and Beverage
$93

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
403
Patients
40
Total drug cost
$9,460
Drug Type Claims Patients Total cost
Trazodone Hcl Generic 91 18 $854
Duloxetine Hcl Generic 68 11 $2,692
Venlafaxine Hcl Er (Venlafaxine Hcl) Brand 55 0 $3,412
Lamotrigine Generic 39 0 $513
Fluoxetine Hcl Generic 33 0 $236
Gabapentin Generic 27 0 $420
Clonazepam Generic 23 11 $94
Alprazolam Generic 17 0 $16
Escitalopram Oxalate Generic 14 0 $149
Mirtazapine Generic 14 0 $833

Frequently asked questions

Auto-generated from federal data
What is Dr. Richard Nasstrom's medical specialty?
Dr. Richard Nasstrom practices Psychiatry Physician in Plymouth, NH.
Where does Dr. Richard Nasstrom practice?
Dr. Richard Nasstrom practices at 1 Warren St, Plymouth, NH 032641416. Office phone: 6039458048.
What is Dr. Richard Nasstrom's NPI?
Dr. Richard Nasstrom's National Provider Identifier (NPI) is 1144665712, issued by NPPES.
Does Dr. Richard Nasstrom accept Medicare assignment?
Yes. Dr. Richard Nasstrom accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Richard Nasstrom commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Psychotherapy with evaluation and management visit (HCPCS 90833). Source: CMS Medicare Physician & Other Practitioners file.