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DR. COSMO KWOK MD
NPI 1497175178
Physical Medicine & Rehabilitation - Pediatric Rehabilitation Medicine in Sacramento, CA

Active since April 22, 2014PECOS Enrolled
4860 Y ST STE 3850, SACRAMENTO, CA 95817(916) 734-5293 Get Directions Write a Review

NPPES record last updated: May 20, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 20, 2025, Oct 9, 2020, Feb 20, 2020 and 1 more (4 updates tracked since 2018).

About Dr. Cosmo Kwok Md NPPES

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

DR. COSMO KWOK MD (NPI 1497175178) is an individual pediatric rehabilitation medicine provider in Sacramento, California, licensed in California (C202756) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497175178
Entity TypeIndividualMale
Primary Taxonomy2081P0010X
Provider Legal NameDR. COSMO KWOKCredential: MD
Location Address4860 Y ST STE 3850Sacramento, CA 95817-2307
Mailing Address4860 Y St Ste 3850Sacramento, CA 95817-2307
Phone(916) 734-5293
Sole ProprietorNo
Enumeration DateApril 22, 2014
Last NPPES UpdateMay 20, 20254 updates tracked since enumeration
NPPES CertifiedMay 20, 2025
✔ NPI 1497175178 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysical Medicine & Rehabilitation · Pediatric Rehabilitation MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2081P0010X
License✔ Licensed in CA · C202756
Definition
A physiatrist who utilizes an interdisciplinary approach and addresses the prevention, diagnosis, treatment and management of congenital and childhood-onset physical impairments including related or secondary medical, physical, functional, psychosocial and vocational limitations or conditions, with an understanding of the life course of disability. This physician is trained in the identification of functional capabilities and selection of the best of rehabilitation intervention strategies, with an understanding of the continuum of care.
4860 Y ST STE 3850, Sacramento, CA 95817
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Cosmo Kwok Md 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 Reassignments

3

Medicare enrollment records show Cosmo Kwok reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The Univ Of Ca
Same address
Maternal & Fetal Medicine
4860 Y ST
Sacramento, CA 95817
  • Reassigned Medicare billing, California enrollment
  • 2,570 clinicians in this Medicare group
NPI 1013906973 (916) 734-6930
Shriners Hospitals For Children
1.1 mi
Anesthesiology
2425 STOCKTON BLVD
Sacramento, CA 95817
  • Reassigned Medicare billing, California enrollment
  • 105 clinicians in this Medicare group
NPI 1114415361 (916) 453-2000
Texas Children's Physician Group
1,607 mi
Pediatrics
6621 FANNIN ST
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Texas Childrens Physician Group
  • 2,498 clinicians in this Medicare group
NPI 1861675506 (832) 824-1000

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 19

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. PAUL MARTIN POLIS MD
Student in an Organized Health Care Education/Training Program
4860 Y ST STE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-5292
RILEY JOHN BARNES
Student in an Organized Health Care Education/Training Program
4860 Y ST STE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-5292
RANDI WONG
Student in an Organized Health Care Education/Training Program
4860 Y ST STE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-7041
LORI BJORK MD
Physical Medicine & Rehabilitation (Sports Medicine)
4860 Y ST STE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-6343
MARY ANNELISE RASMUSSEN
Physical Medicine & Rehabilitation (Pediatric Rehabilitation Medicine)
4860 Y ST STE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-5293
VARNEET KAUR BRAR BS, MD
Physical Medicine & Rehabilitation
4860 Y ST STE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-5292
LILY JUSTINE MD
Student in an Organized Health Care Education/Training Program
4860 Y ST STE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-5292
AARTHI MANJUNATHAN
Physical Medicine & Rehabilitation (Sports Medicine)
4860 Y ST STE 3850
SACRAMENTO, CA 95817
Sacramento County (916) 734-5293

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 Cosmo Kwok's NPI number?

The NPI number for Cosmo Kwok is 1497175178. It was assigned to this individual provider in the NPPES registry on April 22, 2014.

Where is Cosmo Kwok located?

Cosmo Kwok practices at 4860 Y St Ste 3850, Sacramento, CA 95817. The listed phone number is (916) 734-5293.

What is Cosmo Kwok's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation, specializing in Pediatric Rehabilitation Medicine, with taxonomy code 2081P0010X.

Is Cosmo Kwok enrolled in Medicare?

Yes. Cosmo Kwok is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Cosmo Kwok's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cosmo Kwok reassigns Medicare benefits to 3 organizations: Regents Of The Univ Of Ca (Sacramento, CA), Shriners Hospitals For Children (Sacramento, CA) and Texas Children's Physician Group (Houston, TX). 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 Cosmo Kwok's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cosmo Kwok accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 2 other insurers list Cosmo Kwok 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.

When was this NPI record last updated?

The NPPES record for Cosmo Kwok was last updated on May 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.