MARK ANTHONY DELA CRUZ SY III MD
NPI 1609309905
Anesthesiology - Pediatric Anesthesiology in Los Angeles, CA
About Mark Anthony Dela Cruz Sy Iii Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK ANTHONY DELA CRUZ SY III MD (NPI 1609309905) is an individual pediatric anesthesiology provider in Los Angeles, California, licensed in California (A171500) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
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
Mark Anthony Dela Cruz Sy Iii Md 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.
Medicare Billing Reassignments
4Medicare enrollment records show Mark Anthony Sy reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Glendale, CA 91206
- Reassigned Medicare billing, California enrollment
- 164 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 131 clinicians in this Medicare group
Simi Valley, CA 93065
- Reassigned Medicare billing, California enrollment
- 37 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90027 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
LOS ANGELES, CA 90027
LOS ANGELES, CA 90027
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 Mark Anthony Sy's NPI number?
The NPI number for Mark Anthony Sy is 1609309905. It was assigned to this individual provider in the NPPES registry on April 4, 2017.
Where is Mark Anthony Sy located?
Mark Anthony Sy practices at 4867 W Sunset Blvd, Los Angeles, CA 90027. The listed phone number is (323) 783-4011.
What is Mark Anthony Sy's specialty?
The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.
Is Mark Anthony Sy enrolled in Medicare?
Yes. Mark Anthony Sy 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 Mark Anthony Sy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Anthony Sy reassigns Medicare benefits to 4 organizations: Southern California Permanente Medical Group (Los Angeles, CA), Glendale Adventist Medical Center (Glendale, CA), White Memorial Medical Center (Los Angeles, CA) and Simi Valley Anesthesia Medical Group (Simi Valley, 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 Mark Anthony Sy'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 Mark Anthony Sy was last updated on September 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mark Anthony Dela Cruz Sy III, MD · NPI 1609309905
Pediatric Anesthesiology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 4, 2017.
## Identity
- **NPI:** 1609309905 (Entity type: Individual)
- **Enumerated:** April 4, 2017
- **Primary specialty:** Anesthesiology - Pediatric Anesthesiology · taxonomy 207LP3000X
- **State license:** A171500 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4867 W SUNSET BLVD, Los Angeles, CA 90027-5969
- **Phone:** (323) 783-4011
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1134151657, Los Angeles, CA); Glendale Adventist Medical Center (NPI 1336138403, Glendale, CA); White Memorial Medical Center (NPI 1215927470, Los Angeles, CA); Simi Valley Anesthesia Medical Group (NPI 1912936709, Simi Valley, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** September 26, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1609309905) · Data from the CMS NPPES public registry.