Physician Profile
Unclaimed ProfileAbout HAMILTON
John Adam Hamilton, MD is a healthcare provider in Marshalltown, IA specializing in orthopedic surgery. John trained at Creighton University School of Medicine, graduating in 2006. John is also listed as specializing in orthopaedic surgery. Medicare claims data shows John provided 2,173 services to 839 patients.
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 kind of doctor is Dr. Hamilton?
Dr. Hamilton is an orthopedic surgeon in Marshalltown, IA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ORTHOPEDIC SURGERY”.
NPI registry
What is Dr. Hamilton's address?
Dr. Hamilton is listed at 421 E MERLE HIBBS BLVD, Marshalltown, IA 50158. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Hamilton?
The number on file is (641) 844-2213. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Hamilton?
Dr. Hamilton's National Provider Identifier is 1982720231. 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. Hamilton train?
Dr. Hamilton attended Creighton University School of Medicine, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Hamilton have?
Dr. Hamilton has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Hamilton perform?
According to Medicare billing data, Dr. Hamilton performs procedures including aspiration and/or injection of fluid from large joint, aspiration and/or injection of fluid from small joint and replacement of knee joint, both sides of knee, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Hamilton's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hamilton. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (641) 844-2213
- Email not available
Practice Locations
421 E MERLE HIBBS BLVD
Marshalltown, IA 50158
Procedures Most Often Billed to Medicare
2,173 services · 839 patients · 16 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
135 |
| Aspiration and/or injection of fluid from small joint | Procedure | 20600 |
27 |
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
19 |
| Repair of shoulder rotator cuff using an endoscope | Procedure | 29827 |
18 |
| Removal of extensive shoulder joint tissue using an endoscope | Procedure | 29823 |
18 |
| Application of elbow to finger cast | Procedure | 29075 |
18 |
| Release of tendon connecting biceps muscle and shoulder using an endoscope | Procedure | 29828 |
15 |
| Release and/or relocation of hand nerve | Procedure | 64721 |
12 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
1,280 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
217 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 2
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 — 24 related providers in 3 groups
Trained at Creighton University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2006 at Creighton University School of Medicine 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 IA 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.