DR. KENNETH WILLIAM DEFONTES III M.D.
NPI 1134415706
Orthopaedic Surgery in Towson, MD

Active since June 22, 2011PECOS EnrolledAccepts Medicare Assignment
8322 BELLONA AVE STE 100, TOWSON, MD 21204(410) 337-7900(410) 337-5321 Get Directions Write a Review

NPPES record last updated: August 1, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 1, 2018, Jun 27, 2018 (2 updates tracked since 2018).

About Dr. Kenneth William Defontes Iii M.d. NPPES

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

DR. KENNETH WILLIAM DEFONTES III M.D. (NPI 1134415706) is an individual orthopaedic surgery provider in Towson, Maryland, licensed in Maryland (D0084939) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with University Of Md St Joseph Medical Center, and is a graduate of Johns Hopkins University School Of Medicine (2011).

NPPES Registry Identity

NPI1134415706
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. KENNETH WILLIAM DEFONTES IIICredential: M.D.
Location Address8322 BELLONA AVE STE 100Towson, MD 21204
Mailing Address8322 Bellona Ave Ste 100Towson, MD 21204-2065 · (410) 337-7900 · Fax (410) 337-5321
Fax(410) 337-5321
Sole ProprietorNo
Medical School CMSJohns Hopkins University School Of MedicineGraduated 2011
Enumeration DateJune 22, 2011
Last NPPES UpdateAugust 1, 20182 updates tracked since enumeration
✔ NPI 1134415706 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in MD · D0084939
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.
Also ListedOrthopaedic Surgery · Foot and Ankle SurgeryTaxonomy 207XX0004X · License D0084939 (MD)
8322 BELLONA AVE STE 100, Towson, MD 21204

Other Identifiers 1

OtherD0084939MD · Maryland License

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Kenneth William Defontes Iii M.d. 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 ID143592543
PECOS Enrollment IDI20180824000543
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.

Medicare Billing Reassignment

Medicare enrollment records show Kenneth Defontes reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Orthopaedic Surgery
8322 BELLONA AVE, SUITE 100
Towson, MD 21204
  • Reassigned Medicare billing, Maryland enrollment
  • 31 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 20

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.
525 services280 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.
338 services92 patients
X-ray of foot, minimum of 3 views 73630
An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.
300 services164 patients
X-ray of ankle, minimum of 3 views 73610
An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.
289 services135 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.
115 services115 patients
Aspiration and/or injection of fluid from medium joint 20605
This procedure involves a needle being inserted into a medium-sized joint, such as a knee or shoulder, to remove (aspirate) excess fluid. Sometimes, medication may also be injected into the joint to reduce inflammation and pain.
47 services39 patients

Hospital Affiliations CMS Care Compare

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

University Of MD St Joseph Medical Center

Acute Care Hospitals · Towson, MD
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210063
Location7601 Osler DriveTowson, MD 21204 · Baltimore County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21204 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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
57%82 patients3/55-star benchmark: 100%
Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
73%66 patients3/55-star benchmark: 100%
Urinary Incontinence: Assessment of Presence or Absence of Urinary Incontinence in Women Aged 65 Years and Older
Percentage of female patients aged 65 years and older who were assessed for the presence or absence of urinary incontinence within 12 months
98%46 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
2 suppliers13 claims13 services$8.36 avg. paid by Medicare
Ankle orthosis, ankle gauntlet or similar, with or without joints, prefabricated, off-the-shelf L1902
DME-Orthotic Devices · category DF003N
3 suppliers43 claims43 services$70.88 avg. paid by Medicare
Walking boot, pneumatic and/or vacuum, with or without joints, with or without interface material, prefabricated, off-the-shelf L4361
DME-Orthotic Devices · category DF003N
3 suppliers65 claims66 services$233.26 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 16

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

Physical Therapist
8322 BELLONA AVE STE 100
TOWSON, MD 21204
Physician Assistant (Surgical)
8322 BELLONA AVE STE 100
TOWSON, MD 21204
Physical Medicine & Rehabilitation (Sports Medicine)
8322 BELLONA AVE STE 100
TOWSON, MD 21204
Physical Therapist
8322 BELLONA AVE STE 100
TOWSON, MD 21204
Nurse Practitioner (Acute Care)
8322 BELLONA AVE STE 100
TOWSON, MD 21204
Occupational Therapist
8322 BELLONA AVE STE 100
TOWSON, MD 21204
Orthopaedic Surgery
8322 BELLONA AVE STE 100
TOWSON, MD 21204
Physician Assistant
8322 BELLONA AVE STE 100
TOWSON, MD 21204

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 Kenneth Defontes's NPI number?

The NPI number for Kenneth Defontes is 1134415706. It was assigned to this individual provider in the NPPES registry on June 22, 2011.

Where is Kenneth Defontes located?

Kenneth Defontes practices at 8322 Bellona Ave Ste 100, Towson, MD 21204. The listed phone number is (410) 337-7900.

What is Kenneth Defontes's specialty?

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

Is Kenneth Defontes enrolled in Medicare?

Yes. Kenneth Defontes 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.

Which organization bills Medicare for Kenneth Defontes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Defontes reassigns Medicare benefits to University Of Maryland St. Joseph Orthopaedics, LLC (Towson, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kenneth Defontes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kenneth Defontes accept?

Health plans from Taro Health list Kenneth Defontes 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 Kenneth Defontes affiliated with any hospitals?

According to CMS data, Kenneth Defontes is affiliated with University Of MD St Joseph Medical Center.

When was this NPI record last updated?

The NPPES record for Kenneth Defontes was last updated on August 1, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.