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DR. WILLIAM D O'DONNELL M.D.
NPI 1215952437
Ophthalmology in Silver Spring, MD

Active since July 12, 2006PECOS Enrolled
2101 MEDICAL PARK DR, SILVER SPRING, MD 20902(301) 681-6600(301) 681-3799 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. William D O'donnell M.d. NPPES

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

DR. WILLIAM D O'DONNELL M.D. (NPI 1215952437) is an individual ophthalmology provider in Silver Spring, Maryland, licensed in Maryland (D0004530) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1215952437
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameDR. WILLIAM D O'DONNELLCredential: M.D.
Location Address2101 MEDICAL PARK DRSilver Spring, MD 20902-4053
Mailing Address12117 Red Admiral WayGermantown, MD 20876-5939 · (301) 916-6160 · Fax (301) 916-9522
Phone(301) 681-6600
Fax(301) 681-3799
Sole ProprietorNo
Enumeration DateJuly 12, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1215952437 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in MD · D0004530
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
2101 MEDICAL PARK DR, Silver Spring, MD 20902
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Other Identifiers 5

Medicare ID-Type Unspecified409593L99
Other180030694Medicare - Railroad
Other0003Blue Cross/blue Shield
Other255018United Healthcare - Mamsi
Medicare UPINC62591

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William D O'donnell M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 William O'donnell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ladas Eye Group PA
Same address
Ophthalmology
2101 MEDICAL PARK DR, SUITE 101
Silver Spring, MD 20902
  • Reassigned Medicare billing, District of Columbia enrollment
  • 14 clinicians in this Medicare group
NPI 1902837149 (301) 681-6600

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

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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
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.

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.

JUDY CAO
Physician Assistant
2101 MEDICAL PARK DR, SUITE 300E
SILVER SPRING, MD 20902
Montgomery County (301) 754-2222
RICHARD H ISRAEL PHD PA
Audiologist
2101 MEDICAL PARK DR, SUITE 211
SILVER SPRING, MD 20902
Montgomery County (301) 589-3277
JEFFREY A ABEND M.D.
Orthopaedic Surgery
2101 MEDICAL PARK DR, SUITE 110
SILVER SPRING, MD 20902
Montgomery County (301) 681-5400
MEDICAL FACULTY ASSOCIATES
Clinic/Center (Multi-Specialty)
2101 MEDICAL PARK DR, SUITE 305
SILVER SPRING, MD 20902
Montgomery County (301) 754-0834
JOSEPH BAXTER HAYMORE III MS, ACNP
Nurse Practitioner (Acute Care)
2101 MEDICAL PARK DR, SUITE 305
SILVER SPRING, MD 20902
Montgomery County (301) 754-0833
DR. WENDY WONG M.D.
Family Medicine
2101 MEDICAL PARK DR, #308
SILVER SPRING, MD 20902
Montgomery County (301) 681-8000
THE TRAINING ROOM INC
Durable Medical Equipment & Medical Supplies
2101 MEDICAL PARK DR
SILVER SPRING, MD 20902
Montgomery County (800) 500-1878
DRS LOEFFLER ABEND ORTHOPAEDIC ASSOCIATES PA
Orthopaedic Surgery
2101 MEDICAL PARK DR, SUITE 110
SILVER SPRING, MD 20902
Montgomery County (301) 681-5400

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 William O'donnell's NPI number?

The NPI number for William O'donnell is 1215952437. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is William O'donnell located?

William O'donnell practices at 2101 Medical Park Dr, Silver Spring, MD 20902. The listed phone number is (301) 681-6600.

What is William O'donnell's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is William O'donnell enrolled in Medicare?

Yes. William O'donnell is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William O'donnell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William O'donnell reassigns Medicare benefits to Ladas Eye Group PA (Silver Spring, 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 William O'donnell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William O'donnell was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.