DR. FLAVIUS ALEXANDRU BECA
NPI 1659909620
Ophthalmology - Retina Specialist in Walnut Creek, CA
About Dr. Flavius Alexandru Beca NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. FLAVIUS ALEXANDRU BECA (NPI 1659909620) is an individual retina specialist in Walnut Creek, California, licensed in California (A208658) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Thomas Jefferson University Hospital, and maintains a secondary practice location in Philadelphia.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Dr. Flavius Alexandru Beca 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
2Medicare enrollment records show Flavius Beca reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 230 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 11
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Thomas Jefferson University Hospital
Acute Care Hospitals · Philadelphia, PAWills Eye Hospital
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94598 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
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 Flavius Beca's NPI number?
The NPI number for Flavius Beca is 1659909620. It was assigned to this individual provider in the NPPES registry on March 27, 2020.
Where is Flavius Beca located?
Flavius Beca practices at 365 Lennon Ln Ste 250, Walnut Creek, CA 94598. The listed phone number is (925) 943-6800.
What is Flavius Beca's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.
Is Flavius Beca enrolled in Medicare?
Yes. Flavius Beca 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 Flavius Beca's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Flavius Beca reassigns Medicare benefits to 2 organizations: Bay Area Retina Associates (Walnut Creek, CA) and Wills Eye Ophthalmology Clinic, Inc (Philadelphia, PA). 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 Flavius Beca's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Flavius Beca affiliated with any hospitals?
According to CMS data, Flavius Beca is affiliated with Thomas Jefferson University Hospital and Wills Eye Hospital.
When was this NPI record last updated?
The NPPES record for Flavius Beca was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 days 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.
# Dr. Flavius Alexandru Beca · NPI 1659909620
Retina Specialist physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since March 27, 2020.
## Identity
- **NPI:** 1659909620 (Entity type: Individual)
- **Enumerated:** March 27, 2020
- **Primary specialty:** Ophthalmology - Retina Specialist · taxonomy 207WX0107X
- **State license:** A208658 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 365 LENNON LN STE 250, Walnut Creek, CA 94598-5915
- **Phone:** (925) 943-6800
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Bay Area Retina Associates (NPI 1174557805, Walnut Creek, CA); Wills Eye Ophthalmology Clinic, Inc (NPI 1184624009, Philadelphia, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** September 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1659909620) · Data from the CMS NPPES public registry.