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DR. DAWN JOHNSON LEONARD M.D.
NPI 1063490167
Surgery in Wheaton, MD

Active since January 09, 2006PECOS EnrolledAccepts Medicare Assignment
HOLY CROSS HEALTH CANCER CENTER, 11006 VEIRS MILL RD - SUITE L1, WHEATON, MD 20902(301) 681-4422(301) 557-1361 Get Directions Write a Review

NPPES record last updated: November 25, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 14, 2020, Aug 23, 2018 (2 updates tracked since 2018).

About Dr. Dawn Johnson Leonard M.d. NPPES

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

DR. DAWN JOHNSON LEONARD M.D. (NPI 1063490167) is an individual surgery provider in Wheaton, Maryland, licensed in Maryland (D0063740) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1063490167
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameDR. DAWN JOHNSON LEONARDCredential: M.D.
Location AddressHOLY CROSS HEALTH CANCER CENTER, 11006 VEIRS MILL RD - SUITE L1Wheaton, MD 20902
Mailing Address11006 Veirs Mill Rd Ste L1Wheaton, MD 20902-2587 · (301) 681-4422 · Fax (301) 557-1361
Phone(301) 681-4422
Fax(301) 557-1361
Sole ProprietorNo
Medical School CMSHoward University College Of MedicineGraduated 1996
Enumeration DateJanuary 9, 2006
Last NPPES UpdateNovember 25, 20242 updates tracked since enumeration
NPPES CertifiedNovember 22, 2024
✔ NPI 1063490167 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in MD · D0063740✔ Licensed in DC · MD30734✔ Licensed in DE · C1-0023818
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
HOLY CROSS HEALTH CANCER CENTER, Wheaton, MD 20902
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Other Names 1

Former Name (1)Dr. Dawn Nicole Johnson M.d.

Secondary Practice Locations 3

Location 14701 Ogletown Stanton Rd Ste 1500Newark, DE 19713-7022 · Phone (302) 623-4343
Location 23800 Reservoir Rd NWWashington, DC 20007 · Phone (301) 260-3292 · Fax (301) 260-3293
Location 35401 Old Court RdRandallstown, MD 21133-5103 · Phone (410) 701-4488 · Fax (410) 496-8722

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AmeriHealth Caritas Next.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. Dawn Johnson Leonard 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 ID9234153776
PECOS Enrollment IDI20180209000097
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 Reassignments

2

Medicare enrollment records show Dawn Leonard reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Professional Services Of Holy Cross
0.4 mi
Health Service
11006 VEIRS MILL RD STE L1
Wheaton, MD 20902
  • Reassigned Medicare billing, District of Columbia enrollment
  • 234 clinicians in this Medicare group
NPI 1598448052 (301) 682-4422
Sinai Hospital Of Baltimore Inc
18 mi
Colon & Rectal Surgery
8875 CENTRE PARK DR STE D
Columbia, MD 21045
  • Reassigned Medicare billing, Maryland enrollment
  • Also billed through NPI 1568225282 (Maryland)
  • 9 clinicians in this Medicare group
NPI 1689437311 (410) 601-0601

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 7

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 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.
53 services53 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
39 services34 patients
Partial removal of breast 19301
A partial removal of the breast, also known as a lumpectomy, involves taking out a portion of the breast tissue to eliminate concerning cells. It's typically performed when the problem area is limited in size. This procedure helps to preserve most of the breast's appearance while aiming to remove all the unhealthy cells.
29 services22 patients
Injection of radioactive material for x-ray identification of lymph node 38792
This procedure involves injecting a safe radioactive substance into your body. It travels to your lymph nodes, making them visible on X-ray images. This helps in identifying any abnormal nodes for further examination. It's a standard part of many diagnostic processes.
21 services21 patients
Biopsy or removal of deep lymph nodes of underarm 38525
A biopsy or removal of deep underarm lymph nodes is a procedure where a small sample of lymph node tissue is taken for testing. This helps in diagnosing or ruling out conditions like infections or cancers. It involves a small incision and is typically done under local or general anesthesia.
20 services20 patients
Imaging of lymph nodes during surgery 38900
Imaging of lymph nodes during surgery involves taking detailed pictures of your lymph nodes to help surgeons see and assess them in real-time. This procedure can aid in detecting disease, guiding treatment, and improving surgical precision.
20 services20 patients

Hospital Affiliations CMS Care Compare

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

Holy Cross Hospital

Acute Care Hospitals · Silver Spring, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number210004
Location1500 Forest Glen RoadSilver Spring, MD 20910 · Montgomery County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20902 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
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
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.

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 Dawn Leonard's NPI number?

The NPI number for Dawn Leonard is 1063490167. It was assigned to this individual provider in the NPPES registry on January 9, 2006. The provider is also known as Dr. Dawn Nicole Johnson M.D..

Where is Dawn Leonard located?

Dawn Leonard practices at Holy Cross Health Cancer Center 11006 Veirs Mill Rd - Suite L1, Wheaton, MD 20902. The listed phone number is (301) 681-4422.

What is Dawn Leonard's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Dawn Leonard enrolled in Medicare?

Yes. Dawn Leonard 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 organizations bill Medicare for Dawn Leonard's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dawn Leonard reassigns Medicare benefits to 2 organizations: Professional Services Of Holy Cross (Wheaton, MD) and Sinai Hospital Of Baltimore Inc (Columbia, MD). Each 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 Dawn Leonard's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dawn Leonard accept?

Health plans from AmeriHealth Caritas Next list Dawn Leonard 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 Dawn Leonard affiliated with any hospitals?

According to CMS data, Dawn Leonard is affiliated with Holy Cross Hospital.

When was this NPI record last updated?

The NPPES record for Dawn Leonard was last updated on November 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.