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LESLIE MERKEN P.T.
NPI 1700985215
Physical Therapist - Orthopedic in Walnut Creek, CA

Active since September 21, 2006Accepts Medicare Assignment
2405 SHADELANDS DR, WALNUT CREEK, CA 94598(925) 939-8585(925) 933-2709 Get Directions Write a Review

NPPES record last updated: January 14, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Leslie Merken P.t. NPPES

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

LESLIE MERKEN P.T. (NPI 1700985215) is an individual orthopedic provider in Walnut Creek, California, licensed in California (PT18456) and active in the NPI registry since September 2006. She is a graduate of Other (1992).

NPPES Registry Identity

NPI1700985215
Entity TypeIndividualFemale
Primary Taxonomy2251X0800X
Provider Legal NameLESLIE MERKENCredential: P.T.
Location Address2405 SHADELANDS DRWalnut Creek, CA 94598-2444
Mailing AddressPo Box 31396Walnut Creek, CA 94598-8396 · (925) 210-8636 · Fax (925) 933-2709
Phone(925) 939-8585
Fax(925) 933-2709
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateSeptember 21, 2006
Last NPPES UpdateJanuary 14, 2022
✔ NPI 1700985215 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysical Therapist · OrthopedicRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code2251X0800X
License✔ Licensed in CA · PT18456
Definition
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Orthopaedic Physical Therapy, who has demonstrated specialized knowledge and skill in human anatomy and physiology, movement science; pathology/pathophysiology, pain science, medical and surgical considerations, orthopaedic physical therapy theory and practice, and critical inquiry for evidence-based practice.
2405 SHADELANDS DR, Walnut Creek, CA 94598
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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

Leslie Merken P.t. 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 ID6507853959
PECOS Enrollment IDI20040427001726

Medicare Billing Reassignment

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

Permanente Medical Group Inc
18 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555

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

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.

DOUGLAS LANGE M.D.
Orthopaedic Surgery
2405 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-8585
DAVID ARAKAWA P.T.
Physical Therapist (Orthopedic)
2405 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-8585
ANNA GELLER
Nurse Practitioner (Family)
2405 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-8585
TIFFANY WATERS P.A.
Physician Assistant (Surgical)
2405 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-8585
MICHAEL YAO-JEN CHANG D.O.
Physical Medicine & Rehabilitation (Pain Medicine)
2405 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-8585
KELSEY MARLENE HULTS PA
Physician Assistant (Surgical)
2405 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-8585
STEVEN S JACOBS MD INC
Anesthesiology
2405 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-8585
TORAL M. DESAI P.T.
Physical Therapist (Orthopedic)
2405 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-8585

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 Leslie Merken's NPI number?

The NPI number for Leslie Merken is 1700985215. It was assigned to this individual provider in the NPPES registry on September 21, 2006.

Where is Leslie Merken located?

Leslie Merken practices at 2405 Shadelands Dr, Walnut Creek, CA 94598. The listed phone number is (925) 939-8585.

What is Leslie Merken's specialty?

The primary specialty registered for this NPI is Physical Therapist, specializing in Orthopedic, with taxonomy code 2251X0800X.

Is Leslie Merken enrolled in Medicare?

Yes. Leslie Merken 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 Leslie Merken's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Merken reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, CA). 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 Leslie Merken'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 Leslie Merken was last updated on January 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.