DR. KATHLEEN ZAREMBA LADAS M.D.
NPI 1629093745
Ophthalmology in Silver Spring, MD

Active since July 12, 2006PECOS Enrolled
2101 MEDICAL PARK DR, SUITE 101, SILVER SPRING, MD 20902(301) 681-6600(301) 681-3799 Get Directions Write a Review

NPPES record last updated: January 2, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Kathleen Zaremba Ladas M.d. NPPES

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

DR. KATHLEEN ZAREMBA LADAS M.D. (NPI 1629093745) is an individual ophthalmology provider in Silver Spring, Maryland, licensed in Maryland (D30908) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629093745
Entity TypeIndividualFemale
Primary Taxonomy207W00000X
Provider Legal NameDR. KATHLEEN ZAREMBA LADASCredential: M.D.
Location Address2101 MEDICAL PARK DR, SUITE 101Silver Spring, MD 20902-4053
Mailing Address12117 Red Admiral WayGermantown, MD 20876-5939 · (301) 916-6160 · Fax (301) 916-9522
Fax(301) 681-3799
Sole ProprietorNo
Enumeration DateJuly 12, 2006
Last NPPES UpdateJanuary 2, 2008
✔ NPI 1629093745 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in MD · D30908
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

Other Identifiers 6

Other228253United Health Care-mamsi
Medicare UPIND09429
Medicare ID-Type Unspecified171879L99
Other0002Blue Cross/blue Shield
Other180012563Medicare - Railroad
Other180012563DC · Railroad Medicare

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Kathleen Zaremba Ladas 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 Kathleen Ladas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

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

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.

Physician Assistant
2101 MEDICAL PARK DR, SUITE 300E
SILVER SPRING, MD 20902
Audiologist
2101 MEDICAL PARK DR, SUITE 211
SILVER SPRING, MD 20902
Orthopaedic Surgery
2101 MEDICAL PARK DR, SUITE 110
SILVER SPRING, MD 20902
Clinic/Center (Multi-Specialty)
2101 MEDICAL PARK DR, SUITE 305
SILVER SPRING, MD 20902
Nurse Practitioner (Acute Care)
2101 MEDICAL PARK DR, SUITE 305
SILVER SPRING, MD 20902
Family Medicine
2101 MEDICAL PARK DR, #308
SILVER SPRING, MD 20902
Durable Medical Equipment & Medical Supplies
2101 MEDICAL PARK DR
SILVER SPRING, MD 20902
Orthopaedic Surgery
2101 MEDICAL PARK DR, SUITE 110
SILVER SPRING, MD 20902

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 Kathleen Ladas's NPI number?

The NPI number for Kathleen Ladas is 1629093745. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Kathleen Ladas located?

Kathleen Ladas practices at 2101 Medical Park Dr Suite 101, Silver Spring, MD 20902. The listed phone number is (301) 681-6600.

What is Kathleen Ladas's specialty?

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

Is Kathleen Ladas enrolled in Medicare?

Yes. Kathleen Ladas is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kathleen Ladas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Ladas 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 Kathleen Ladas'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 Kathleen Ladas was last updated on January 2, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.