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Edit this profileAt a glance
- 330 Borthwick Ave, Suite 300, Portsmouth, NH 03801
About David Ryan
David Ryan, PA is a physician assistant practicing in Portsmouth, NH. David is also listed as specializing in physician assistant — surgical. According to Medicare claims data, David cared for 109 Medicare patients across 112 services. The services billed most often include initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes. This provider record is associated with NPI 1437409372.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (603) 433-4666
- Email not available
Practice Locations
330 BORTHWICK AVE SUITE 300
Portsmouth, NH 03801
Procedures Most Often Billed to Medicare
112 services · 109 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of spine bone for insertion of neurostimulator electrode plate in spine | Procedure | 63655 |
13 | Too few peers to compare |
| Insertion or replacement of spinal neurostimulator generator or receiver | Procedure | 63685 |
11 | Less often than most peers in Physician Assistant |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
11 | Less often than most peers in Physician Assistant |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
35 | More often than most peers in Physician Assistant |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
16 | Less often than most peers in Physician Assistant |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
15 | Less often than most peers in Physician Assistant |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
11 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 3 groups
Other physician assistants in Portsmouth 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Other 7
Providers who graduated from the same medical school in the same year.
Common questions
What does David Ryan specialize in?
David Ryan is a physician assistant in Portsmouth, NH. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is David Ryan located?
David Ryan is listed at 330 Borthwick Ave Suite 300, Portsmouth, NH 03801. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is David Ryan's phone number?
The number on file is (603) 433-4666. Contact the office directly to confirm availability and scheduling.
NPI registry
What is David Ryan's NPI number?
David Ryan's National Provider Identifier is 1437409372. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did David Ryan train?
David Ryan attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How long has David Ryan been practicing?
David Ryan has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What does David Ryan do most often?
According to Medicare billing data, David Ryan performs procedures including removal of spine bone for insertion of neurostimulator electrode plate in spine, insertion or replacement of spinal neurostimulator generator or receiver and partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has David Ryan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by David Ryan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.