CALVIN ENG M.D.
NPI 1225039092
Ophthalmology in Monterey Park, CA
About Calvin Eng M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CALVIN ENG M.D. (NPI 1225039092) is an individual ophthalmology provider in Monterey Park, California, licensed in California (G55239) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
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
Calvin Eng 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.
Medicare Billing Reassignments
3Medicare enrollment records show Calvin Eng reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Monterey Park, CA 91754
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Pasadena, CA 91105
- Reassigned Medicare billing, California enrollment
- 2 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 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 9
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 91754 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.
MONTEREY PARK, CA 91754
MONTEREY PARK, CA 91754
MONTEREY PARK, CA 91754
MONTEREY PARK, CA 91754
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 Calvin Eng's NPI number?
The NPI number for Calvin Eng is 1225039092. It was assigned to this individual provider in the NPPES registry on August 3, 2005.
Where is Calvin Eng located?
Calvin Eng practices at 850 S Atlantic Blvd Suite 301, Monterey Park, CA 91754. The listed phone number is (626) 289-8260.
What is Calvin Eng's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Calvin Eng enrolled in Medicare?
Yes. Calvin Eng 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 Calvin Eng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Calvin Eng reassigns Medicare benefits to 3 organizations: Eng Medical Associates (Monterey Park, CA), Eng And Chang Partnership (Pasadena, CA) and Healthcare Partners Affiliates Medical Group (Los Angeles, 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 Calvin Eng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Calvin Eng accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Calvin Eng 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 Calvin Eng was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Calvin Eng, M.D. · NPI 1225039092
Ophthalmology physician in Monterey Park, California. Individual provider, active in the CMS NPPES registry since August 3, 2005.
## Identity
- **NPI:** 1225039092 (Entity type: Individual)
- **Enumerated:** August 3, 2005
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** G55239 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 850 S ATLANTIC BLVD, SUITE 301, Monterey Park, CA 91754-4730
- **Phone:** (626) 289-8260 · **Fax:** (626) 289-4242
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Eng Medical Associates (NPI 1295802643, Monterey Park, CA); Eng And Chang Partnership (NPI 1245398882, Pasadena, CA); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 1984
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid GR0048692 (CA); Medicaid GR0048690 (CA); Medicaid 00G552390 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1225039092) · Data from the CMS NPPES public registry.