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Edit this profileAt a glance
- 23000 Moakley Street, Suite 102, Leonardtown, MD 20650
About Dr. Johnston
Based in Leonardtown, MD, Peter S. Johnston, MD is listed in the NPI registry under orthopedic surgery. Peter graduated from Wayne State University School of Medicine in 2005. Peter is also listed as specializing in orthopaedic surgery. Medicare claims data shows Peter provided 3,265 services to 2,176 patients. The services billed most often include x-ray of shoulder, minimum of 2 views, injection, triamcinolone acetonide, not otherwise specified, 10 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1194946095 identifies this record in the national registry.
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
- (301) 475-5555
- Email not available
Practice Locations
23000 MOAKLEY STREET SUITE 102
Leonardtown, MD 20650
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Elbow, hand, and wrist
Foot and ankle
Hip
Shoulder
Sports and soft tissue
Trauma and bone
Foot & Ankle
Spine
Procedures & services
Most searched procedures
Evaluation and nonsurgical
Arthroscopy
Foot & Ankle
Foot and ankle
Hand & Wrist
Hand and upper extremity
Injections & Non-Surgical
Injections & pain relief
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
Shoulder surgery
Trauma & Fractures
Trauma and fixation
Procedures Most Often Billed to Medicare
3,265 services · 2,176 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
154 | More often than most peers in Orthopedic Surgery |
| Prosthetic repair of shoulder joint, total shoulder | Procedure | 23472 |
75 | More than most peers in Orthopedic Surgery |
| Incision of shoulder tendon | Procedure | 23405 |
62 | More than most peers in Orthopedic Surgery |
| Removal of extensive shoulder joint tissue using an endoscope | Procedure | 29823 |
44 | More than most peers in Orthopedic Surgery |
| Repair of shoulder rotator cuff using an endoscope | Procedure | 29827 |
41 | More than most peers in Orthopedic Surgery |
| Anchoring of biceps tendon | Procedure | 23430 |
21 | More often than most peers in Orthopedic Surgery |
| Release of tendon connecting biceps muscle and shoulder using an endoscope | Procedure | 29828 |
20 | More often than most peers in Orthopedic Surgery |
| Shaving of part of shoulder bone and repair of ligament using an endoscope | Procedure | 29826 |
13 | Less often than most peers in Orthopedic Surgery |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
980 | More than most peers in Orthopedic Surgery |
| X-ray of upper spine, 2-3 views | Imaging | 72040 |
100 | More than most peers in Orthopedic Surgery |
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 orthopedic surgeons at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 26 related providers in 4 groups
Other orthopedic surgeons in Leonardtown 2
Same specialty, same city.
Trained at Wayne State University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Wayne State 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 MD who bill this service to Medicare most often.
Common questions
What is Dr. Johnston's specialty?
Dr. Johnston is an orthopedic surgeon in Leonardtown, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopedic Surgery”.
NPI registry
Where can I find Dr. Johnston?
Dr. Johnston is listed at 23000 Moakley Street Suite 102, Leonardtown, MD 20650. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Johnston?
The number on file is (301) 475-5555. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Johnston?
Dr. Johnston's National Provider Identifier is 1194946095. 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
What is Dr. Johnston's medical education?
Dr. Johnston attended Wayne State University School of Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Johnston have?
Dr. Johnston has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Johnston known for?
According to Medicare billing data, Dr. Johnston performs procedures including aspiration and/or injection of fluid from large joint, prosthetic repair of shoulder joint, total shoulder and incision of shoulder tendon; reads or performs imaging such as x-ray of shoulder, minimum of 2 views and x-ray of upper spine, 2-3 views; provides treatments such as test or measurement for functional capacity, each 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Johnston's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnston. If this is you, claiming it is free.
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