RONALD REA TOLENTINO ATIENZA C.R.N.A
NPI 1316279938
Nurse Anesthetist, Certified Registered in Downey, CA
About Ronald Rea Tolentino Atienza C.r.n.a NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RONALD REA TOLENTINO ATIENZA C.R.N.A (NPI 1316279938) is an individual nurse anesthetist, certified registered in Downey, California, licensed in California (3951) and active in the NPI registry since February 2010. He is a graduate of Other (2010).
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
Ronald Rea Tolentino Atienza C.r.n.a 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
6Medicare enrollment records show Ronald Rea Atienza reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bellflower, CA 90706
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Monterey Park, CA 91755
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Lightning Anesthesia Nursing Services PC
- 20 clinicians in this Medicare group
Hawthorne, CA 90250
- Reassigned Medicare billing, California enrollment
- 11 clinicians in this Medicare group
Santa Monica, CA 90403
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
Fontana, CA 92336
- Reassigned Medicare billing, California enrollment
- 55 clinicians in this Medicare group
Crescent City, CA 95531
- Reassigned Medicare billing, California enrollment
- 134 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90242 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.
DOWNEY, CA 90242
DOWNEY, CA 90242
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 Ronald Rea Atienza's NPI number?
The NPI number for Ronald Rea Atienza is 1316279938. It was assigned to this individual provider in the NPPES registry on February 6, 2010.
Where is Ronald Rea Atienza located?
Ronald Rea Atienza practices at 9333 Imperial Hwy, Downey, CA 90242. The listed phone number is (562) 657-9000.
What is Ronald Rea Atienza's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Ronald Rea Atienza enrolled in Medicare?
Yes. Ronald Rea Atienza 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 Ronald Rea Atienza's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Rea Atienza reassigns Medicare benefits to 6 organizations: Southern California Permanente Medical Group (Bellflower, CA), Lightning Anesthesia Nursing Services, P.C. (Monterey Park, CA), Sky Anesthesia Inc. (Hawthorne, CA), West Ridge Anesthesia PC (Santa Monica, CA), Jp Anesthesia Inc (Fontana, CA) and 1 more organization, listed in the Medicare section above. 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 Ronald Rea Atienza'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 Ronald Rea Atienza was last updated on October 23, 2021. 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.
# Ronald Rea Tolentino Atienza, C.R.N.A · NPI 1316279938
Nurse Anesthetist, Certified Registered physician in Downey, California. Individual provider, active in the CMS NPPES registry since February 6, 2010.
## Identity
- **NPI:** 1316279938 (Entity type: Individual)
- **Enumerated:** February 6, 2010
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 3951 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9333 IMPERIAL HWY, Downey, CA 90242-2812
- **Phone:** (562) 657-9000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1043242555, Bellflower, CA); Lightning Anesthesia Nursing Services, P.C. (NPI 1710672316, Monterey Park, CA); Sky Anesthesia Inc. (NPI 1962050401, Hawthorne, CA); West Ridge Anesthesia PC (NPI 1932686748, Santa Monica, CA); Jp Anesthesia Inc (NPI 1609590926, Fontana, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** October 23, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1316279938) · Data from the CMS NPPES public registry.