Physician Profile
Unclaimed ProfileAbout RYAN
David Ryan, PA is a physician assistant practising in Portsmouth, NH. David is also listed as specialising in physician assistant — surgical.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Ryan specialise in?
Dr. Ryan is a physician assistant in Portsmouth, NH. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PHYSICIAN ASSISTANT”.
NPI registry
Where is Dr. Ryan located?
Dr. 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 Dr. Ryan's phone number?
The number on file is (603) 433-4666. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Ryan's NPI number?
Dr. 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 Dr. Ryan go to medical school?
Dr. Ryan attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ryan been practising?
Dr. Ryan has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ryan do most often?
According to Medicare billing data, Dr. 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 Dr. Ryan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ryan. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
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 |
|---|---|---|---|
| Removal of spine bone for insertion of neurostimulator electrode plate in spine | Procedure | 63655 |
13 |
| Insertion or replacement of spinal neurostimulator generator or receiver | Procedure | 63685 |
11 |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
11 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
35 |
| 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 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
15 |
| 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 |
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 — 25 related providers in 4 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.
Also performs Removal of spine bone for insertion of neurostimulator electrode plate in spine 2
Providers in NH who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.