PETER SHAY JOHNSTON MD
NPI 1194946095
Orthopaedic Surgery in Leonardtown, MD

Q: What is Peter Johnston's NPI number?

The NPI number for Peter Johnston is 1194946095. It was assigned to this individual provider in the NPPES registry on May 1, 2007.

Q: What is Peter Johnston's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Q: When was this NPI record last updated?

The NPPES record for Peter Johnston was last updated on May 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 01, 2007PECOS EnrolledAccepts Medicare Assignment

23000 MOAKLEY STREET, SUITE 102, LEONARDTOWN, MD 20650(301) 475-5555(301) 475-8535 Get Directions Write a Review

NPPES record last updated: May 9, 2013. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Peter Shay Johnston Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PETER SHAY JOHNSTON MD (NPI 1194946095) is an individual orthopaedic surgery provider in Leonardtown, Maryland, licensed in Maryland (D0072342) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Medstar Saint Mary's Hospital, and is a graduate of Wayne State University School Of Medicine (2005).

NPPES Registry Identity

NPI1194946095

Entity TypeIndividualMale

Primary Taxonomy207X00000X

Provider Legal NamePETER SHAY JOHNSTONCredential: MD

Location Address23000 MOAKLEY STREET, SUITE 102Leonardtown, MD 20650

Mailing Address23000 Moakley Street, Suite 102Leonardtown, MD 20650 · (301) 475-5555 · Fax (301) 475-8535

Phone(301) 475-5555

Fax(301) 475-8535

Sole ProprietorYes

Medical School CMSWayne State University School Of MedicineGraduated 2005

Enumeration DateMay 1, 2007

Last NPPES UpdateMay 9, 2013

✔ NPI 1194946095 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207X00000X

License✔ Licensed in MD · D0072342

Definition

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

23000 MOAKLEY STREET, Leonardtown, MD 20650

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Peter Shay Johnston Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6507037652

PECOS Enrollment IDI20110921000132

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 22

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

980 services604 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

640 services136 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

532 services407 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

160 services144 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

154 services137 patients

Test or measurement for functional capacity, each 15 minutes 97750

This procedure measures your functional capacity, or ability to perform tasks, over 15-minute intervals. It can help identify limitations or improvements in your physical abilities. The test may involve activities like walking, lifting, or bending.

132 services113 patients

X-ray of upper spine, 2-3 views 72040

An X-ray of the upper spine, with 2-3 views, is a painless procedure that employs a small amount of radiation to capture images of your neck and upper back. It assists in diagnosing conditions like arthritis, fractures, or spinal deformities.

100 services99 patients

Prosthetic repair of shoulder joint, total shoulder 23472

Total shoulder prosthetic repair is a surgical procedure to replace a damaged shoulder joint with artificial components. It aims to relieve pain and restore mobility. The procedure involves replacing the ball (humeral head) and socket (glenoid) of the shoulder joint.

75 services74 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

69 services67 patients

Incision of shoulder tendon 23405

An incision of the shoulder tendon is a surgical procedure where a small cut is made to access the affected tendon. It's typically done to repair damage, such as a tear, and can help to alleviate pain and restore shoulder function. The procedure is performed under anesthesia.

62 services62 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

52 services43 patients

Removal of extensive shoulder joint tissue using an endoscope 29823

This procedure, known as arthroscopic debridement, involves using a small camera (endoscope) to view your shoulder joint. Damaged or unwanted tissue is then carefully removed. This minimally invasive technique aims to reduce pain and improve joint mobility.

44 services44 patients

Repair of shoulder rotator cuff using an endoscope 29827

This procedure, known as arthroscopic rotator cuff repair, helps fix tears in the shoulder's rotator cuff. An endoscope, a small camera, is used to view the shoulder inside. Using small tools, the surgeon repairs the torn tissue. This minimally invasive approach often leads to a quicker recovery.

41 services41 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

39 services26 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

37 services37 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

37 services36 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

26 services22 patients

Anchoring of biceps tendon 23430

Anchoring of the biceps tendon is a surgical procedure aimed at restoring stability to your arm. The surgeon secures your biceps tendon to the bone using special anchors, which helps to reduce pain and improve arm function.

21 services21 patients

Release of tendon connecting biceps muscle and shoulder using an endoscope 29828

This procedure involves using a small camera, known as an endoscope, to view and release the tendon connecting your biceps muscle and shoulder. It can help reduce pain and improve mobility. The procedure is minimally invasive, promoting quicker recovery.

20 services20 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

19 services18 patients

Shaving of part of shoulder bone and repair of ligament using an endoscope 29826

This procedure involves using a tiny camera, called an endoscope, to view and repair a damaged shoulder ligament. Simultaneously, a small portion of the shoulder bone is shaved to alleviate discomfort and improve movement. It's a minimally invasive technique that aids in a quicker recovery.

13 services13 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Medstar Saint Mary's Hospital

Acute Care Hospitals · Leonardtown, MD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210028

Location25500 Point Lookout RoadLeonardtown, MD 20650 · St. Marys County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20650 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$89.75 typical visit price

range $57.99 – $175.57

Typical copayment $22.43 (range $14.49 – $43.89)

Most-billed visit code 99203

Established Patient

$72.23 typical visit price

range $18.66 – $143.02

Typical copayment $18.05 (range $4.66 – $35.75)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Neuromuscular stimulator, electronic shock unit E0745

DME-Other DME · category DE000N

1 supplier13 claims13 services$59.34 avg. paid by Medicare

Shoulder orthosis, acromio/clavicular (canvas and webbing type), prefabricated, off-the-shelf L3670

DME-Orthotic Devices · category DF000N

1 supplier22 claims22 services$100.53 avg. paid by Medicare

Wrist hand finger orthosis, without joint(s), prefabricated, off-the-shelf, any type L3809

DME-Orthotic Devices · category DF000N

1 supplier12 claims12 services$185.12 avg. paid by Medicare

Wrist hand orthosis, wrist extension control cock-up, non molded, prefabricated, off-the-shelf L3908

DME-Orthotic Devices · category DF000N

1 supplier13 claims13 services$51.22 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ELIZABETH G. FORREST M.D.

Physical Medicine & Rehabilitation

23000 MOAKLEY STREET, SUITE 102
LEONARDTOWN, MD 20650

St. Mary's County (301) 475-5555

DR. PATRICIA TURNER M.D.

Orthopaedic Surgery

23000 MOAKLEY STREET, SUITE 102
LEONARDTOWN, MD 20650

St. Mary's County (301) 475-5555

ROBERT E MILLER MD FAAP PA

Pediatrics

23000 MOAKLEY STREET, SUITE 103
LEONARDTOWN, MD 20650

St. Mary's County (301) 475-7222

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Peter Johnston's NPI number?

The NPI number for Peter Johnston is 1194946095. It was assigned to this individual provider in the NPPES registry on May 1, 2007.

Where is Peter Johnston located?

Peter Johnston practices at 23000 Moakley Street Suite 102, Leonardtown, MD 20650. The listed phone number is (301) 475-5555.

What is Peter Johnston's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Peter Johnston enrolled in Medicare?

Yes. Peter Johnston is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Peter Johnston affiliated with any hospitals?

According to CMS data, Peter Johnston is affiliated with Medstar Saint Mary's Hospital.

When was this NPI record last updated?

The NPPES record for Peter Johnston was last updated on May 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.