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MANIK WIJESINGHE M.D.
NPI 1750579181
Anesthesiology in Castro Valley, CA

Active since October 10, 2007PECOS EnrolledAccepts Medicare Assignment
20103 LAKE CHABOT RD, SUITE 420, CASTRO VALLEY, CA 94546(888) 202-0437 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Manik Wijesinghe M.d. NPPES

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

MANIK WIJESINGHE M.D. (NPI 1750579181) is an individual anesthesiology provider in Castro Valley, California, licensed in California (A88773) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (2003).

NPPES Registry Identity

NPI1750579181
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMANIK WIJESINGHECredential: M.D.
Location Address20103 LAKE CHABOT RD, SUITE 420Castro Valley, CA 94546-5305
Mailing AddressDept # 34237, Po Box 39000San Francisco, CA 94139 · (888) 202-0437
Phone(888) 202-0437
Sole ProprietorYes
Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 2003
Enumeration DateOctober 10, 2007
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1750579181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A88773
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
20103 LAKE CHABOT RD, Castro Valley, CA 94546
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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

Manik Wijesinghe 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 ID3072672971
PECOS Enrollment IDI20081106000838
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 Manik Wijesinghe reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Alameda Anesthesia Associates Medical Group, Inc
Same address
Anesthesiology
20103 LAKE CHABOT RD
Castro Valley, CA 94546
  • Reassigned Medicare billing, California enrollment
  • 30 clinicians in this Medicare group
NPI 1487602256 (510) 537-1234
Permanente Medical Group Inc
16 mi
Internal Medicine
1190 VETERANS BLVD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1639252604 (650) 299-2000

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.

DR. OLUWASEYI SEGUN BALASIRE M.D.
Hospitalist
20103 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Alameda County (510) 727-3256
LATRICIA A AMADEO RN
Registered Nurse
20103 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Alameda County (205) 915-5496
SARAH NOONBERG MD, PHD
Internal Medicine
20103 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Alameda County (510) 889-5082
DR. MOYRA N RASHEED M.B.B.S
Hospitalist
20103 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Alameda County (510) 727-3256
DOMINIC K TRAN PHARMD
Pharmacist (Ambulatory Care)
20103 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Alameda County (510) 537-1234
THOMAS EALES DO
Emergency Medicine
20103 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Alameda County (510) 727-3320
OMAR FAISAL SALEEM MD
Internal Medicine
20103 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Alameda County (510) 727-3256
HELENA CHUNG RD, MPH
Dietitian, Registered
20103 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Alameda County (510) 727-3204

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 Manik Wijesinghe's NPI number?

The NPI number for Manik Wijesinghe is 1750579181. It was assigned to this individual provider in the NPPES registry on October 10, 2007.

Where is Manik Wijesinghe located?

Manik Wijesinghe practices at 20103 Lake Chabot Rd Suite 420, Castro Valley, CA 94546. The listed phone number is (888) 202-0437.

What is Manik Wijesinghe's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Manik Wijesinghe enrolled in Medicare?

Yes. Manik Wijesinghe 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 Manik Wijesinghe's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Manik Wijesinghe reassigns Medicare benefits to 2 organizations: Alameda Anesthesia Associates Medical Group, Inc (Castro Valley, CA) and Permanente Medical Group Inc (Redwood City, CA). 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 Manik Wijesinghe'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 Manik Wijesinghe was last updated on February 11, 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.