Doctor profile · Federal record

Dr. David Ryan, PA

Surgical Physician Assistant (CMS: Physician Assistant) · Portsmouth, NH

  • NPI 1437409372
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 14 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
330 Borthwick Ave, Suite 300
Portsmouth, NH 038014174
(603) 433-4666
fax (603) 433-1338

Credentials & registration

NPPES · NUCC
NPI registered
September 2012 — 14 yrs on file
Profile last updated
December 13, 2023
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363AS0400X — NUCC code
State license (1)
New Hampshire #0979
Medicaid
NH #3106853

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437409372. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
103
Distinct HCPCS
5
Medicare allowed
$8,066
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 29 24 $77
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 29 27 $67
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 21 18 $42
63047 Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 13 13 $140
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 11 11 $110

In context: peer comparison

Among 4 peers in Portsmouth Surgical Physician Assistant, average services per provider: 42. This provider delivers 2.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
26
Patients
25
Total drug cost
$143
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 26 25 $143

Frequently asked questions

Auto-generated from federal data
What is Dr. David Ryan's medical specialty?
Dr. David Ryan practices Surgical Physician Assistant in Portsmouth, NH.
Where does Dr. David Ryan practice?
Dr. David Ryan practices at 330 Borthwick Ave, Portsmouth, NH 038014174. Office phone: 6034334666.
What is Dr. David Ryan's NPI?
Dr. David Ryan's National Provider Identifier (NPI) is 1437409372, issued by NPPES.
Does Dr. David Ryan accept Medicare assignment?
Yes. Dr. David Ryan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Ryan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.