DR. JOHN K. MARIANI DO
NPI 1811006885
Orthopaedic Surgery in Sewell, NJ

Q: What is John Mariani's NPI number?

The NPI number for John Mariani is 1811006885. It was assigned to this individual provider in the NPPES registry on August 30, 2006.

Q: What is John Mariani'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 John Mariani was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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 August 30, 2006PECOS EnrolledAccepts Medicare Assignment

570 EGG HARBOR RD, SUITE C4, SEWELL, NJ 08080(609) 267-9400(609) 267-9457 Get Directions Write a Review

NPPES record last updated: March 17, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. John K. Mariani Do NPPES

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

DR. JOHN K. MARIANI DO (NPI 1811006885) is an individual orthopaedic surgery provider in Sewell, New Jersey, licensed in New Jersey (25MB04123100) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with West Jersey Hospital, and is a graduate of Philadelphia College Of Osteopathic Medicine (1981).

NPPES Registry Identity

NPI1811006885

Entity TypeIndividualMale

Primary Taxonomy207X00000X

Provider Legal NameDR. JOHN K. MARIANICredential: DO

Location Address570 EGG HARBOR RD, SUITE C4Sewell, NJ 08080-2359

Mailing Address301 Lippincott Dr Ste 410Marlton, NJ 08053-4197

Phone(609) 267-9400

Fax(609) 267-9457

Sole ProprietorNo

Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 1981

Enumeration DateAugust 30, 2006

Last NPPES UpdateMarch 17, 2026

NPPES CertifiedMarch 17, 2026

✔ NPI 1811006885 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207X00000X

License✔ Licensed in NJ · 25MB04123100

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.

570 EGG HARBOR RD, Sewell, NJ 08080

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

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

Dr. John K. Mariani Do 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 ID5799843140

PECOS Enrollment IDI20101027000428

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 15

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.

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.

530 services333 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.

527 services93 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.

514 services213 patients

Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose J7324

Orthovisc is a treatment involving injections of a substance called hyaluronan into your joints. Hyaluronan is a natural substance in your joint fluid that aids in movement and reduces pain. The Orthovisc injections help replenish this substance, relieving joint pain.

496 services118 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.

392 services291 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

316 services150 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.

164 services164 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.

103 services94 patients

Replacement of knee joint, both sides of knee 27447

A bilateral knee joint replacement is a procedure where the damaged parts of both your knee joints are replaced with artificial parts. It aims to relieve pain and improve mobility. The process involves a surgical operation under anesthesia.

64 services63 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.

60 services53 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

55 services53 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

19 services19 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.

19 services19 patients

Hyaluronan or derivative, monovisc, for intra-articular injection, per dose J7327

Monovisc is a treatment involving an injection of hyaluronan or its derivative into a joint, often the knee. This substance, found naturally in joint fluid, helps lubricate and cushion the joint. The injection can help ease pain, improve mobility, and reduce inflammation caused by arthritis.

18 services12 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.

16 services15 patients

Hospital Affiliations CMS Care Compare 2

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

West Jersey Hospital

Acute Care Hospitals · Voorhees, NJ

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310022

Location100 Bowman DriveVoorhees, NJ 08043 · Camden County

Emergency services Birthing friendly

Jefferson Stratford Hospital

Acute Care Hospitals · Stratford, NJ

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310086

Location18 East Laurel RoadStratford, NJ 08084 · Camden County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08080 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

$94.90 typical visit price

range $61.59 – $185.05

Typical copayment $23.72 (range $15.39 – $46.26)

Most-billed visit code 99203

Established Patient

$76.45 typical visit price

range $20.08 – $150.98

Typical copayment $19.11 (range $5.02 – $37.74)

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.

Other Providers at the Same Location NPPES 20

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

KENNEDY MEDICAL GROUP PRACTICE, P.C.

Surgery

570 EGG HARBOR RD, SUITE C-2
SEWELL, NJ 08080

Gloucester County (856) 783-1987

ROWANSOM DEPT OF MATERNAL-FETAL MEDICINE

Obstetrics & Gynecology (Maternal & Fetal Medicine)

570 EGG HARBOR RD, SUITE C-2
SEWELL, NJ 08080

Gloucester County (856) 218-0300

ACADEMY ORTHOPEDICS, PA

Orthopaedic Surgery

570 EGG HARBOR RD, SUITE B2
SEWELL, NJ 08080

Gloucester County (856) 256-0051

DR. CHARLES FRANKLIN GRESHAM III MD

Urology

570 EGG HARBOR RD
SEWELL, NJ 08080

Gloucester County (877) 388-2778

SANDRA LYNN LEBER D.O.

Obstetrics & Gynecology

570 EGG HARBOR RD, SUITE C-2
SEWELL, NJ 08080

Gloucester County (856) 218-8300

BRIAN BEHLAU PT

Specialist

570 EGG HARBOR RD, SUITE B6
SEWELL, NJ 08080

Gloucester County (856) 218-8050

KEHUA LI MD

Dermatology (MOHS-Micrographic Surgery)

570 EGG HARBOR RD, SUITE C-1
SEWELL, NJ 08080

Gloucester County (856) 256-8899

MS. PATRICIA CATHERINE BOYLE MPT

Physical Therapist

570 EGG HARBOR RD
SEWELL, NJ 08080

Gloucester County (856) 218-8050

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 John Mariani's NPI number?

The NPI number for John Mariani is 1811006885. It was assigned to this individual provider in the NPPES registry on August 30, 2006.

Where is John Mariani located?

John Mariani practices at 570 Egg Harbor Rd Suite C4, Sewell, NJ 08080. The listed phone number is (609) 267-9400.

What is John Mariani's specialty?

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

Is John Mariani enrolled in Medicare?

Yes. John Mariani 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.

What insurance does John Mariani accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list John Mariani as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Mariani affiliated with any hospitals?

According to CMS data, John Mariani is affiliated with West Jersey Hospital and Jefferson Stratford Hospital.

When was this NPI record last updated?

The NPPES record for John Mariani was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.