Provider Profile
Nathan P. Vassill, PA-C
Unclaimed ProfileAbout Nathan Vassill
Nathan P. Vassill, PA-C is a physician assistant practicing in Somersworth, NH. Medicare claims data shows Nathan provided 815 services to 481 patients. The services billed most often include injection, triamcinolone acetonide, not otherwise specified, 10 mg, initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
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
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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) 742-2007
- Email not available
Practice Locations
7 MARSH BROOK DR SUITE 100
Somersworth, NH 03878
Procedures Most Often Billed to Medicare
815 services · 481 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
85 | As often as other peers in Physician Assistant |
| Aspiration and/or injection of fluid from small joint | Procedure | 20600 |
12 | Less often than most peers in Physician Assistant |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
338 | More 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 |
121 | More than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
88 | As often as other 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 |
66 | More often than most peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
43 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
31 | Less often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
20 | As often as other peers in Physician Assistant |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
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 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 29 related providers in 4 groups
Other physician assistants in Somersworth 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2010 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in NH who bill this service to Medicare most often.
Common questions
What kind of doctor is Nathan P. Vassill?
Nathan P. Vassill is a physician assistant in Somersworth, NH. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Nathan P. Vassill's address?
Nathan P. Vassill is listed at 7 Marsh Brook Dr Suite 100, Somersworth, NH 03878. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Nathan P. Vassill?
The number on file is (603) 742-2007. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Nathan P. Vassill?
Nathan P. Vassill's National Provider Identifier is 1528371473. 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 Nathan P. Vassill train?
Nathan P. Vassill attended Other, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Nathan P. Vassill have?
Nathan P. Vassill has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What procedures does Nathan P. Vassill perform?
According to Medicare billing data, Nathan P. Vassill performs procedures including aspiration and/or injection of fluid from large joint and aspiration and/or injection of fluid from small joint, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Nathan P. Vassill's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Nathan P. Vassill. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.