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RONALD NGUYEN MD
NPI 1720436736
Anesthesiology in Santa Ana, CA

Active since May 31, 2016PECOS EnrolledAccepts Medicare Assignment
2802 S DIAMOND ST, SANTA ANA, CA 92704(714) 924-4830 Get Directions Write a Review

NPPES record last updated: May 31, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ronald Nguyen Md NPPES

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

RONALD NGUYEN MD (NPI 1720436736) is an individual anesthesiology provider in Santa Ana, California, licensed in California (142461) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (2014).

NPPES Registry Identity

NPI1720436736
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameRONALD NGUYENCredential: MD
Location Address2802 S DIAMOND STSanta Ana, CA 92704-6015
Mailing Address2802 S Diamond StSanta Ana, CA 92704-6015 · (714) 924-4830
Phone(714) 924-4830
Sole ProprietorYes
Medical School CMSSaint Louis University School Of MedicineGraduated 2014
Enumeration DateMay 31, 2016
✔ NPI 1720436736 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · 142461
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
2802 S DIAMOND ST, Santa Ana, CA 92704
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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 Nguyen 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.

PECOS PAC ID5991053878
PECOS Enrollment IDI20180809000610
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

2

Medicare enrollment records show Ronald Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Premiercare Anesthesia Fountain Valley Inc
2.1 mi
Anesthesiology
17100 EUCLID ST.
Fountain Valley, CA 97208
  • Reassigned Medicare billing, California enrollment
  • 59 clinicians in this Medicare group
NPI 1831536531 (714) 966-7200
Orange Coast Anesthesia Inc
6.8 mi
Anesthesiology
2601 E CHAPMAN AVE
Orange, CA 92869
  • Reassigned Medicare billing, California enrollment
  • 168 clinicians in this Medicare group
NPI 1508138256 (714) 633-0011

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 7

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.

Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
34 services34 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
22 services22 patients
Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
19 services19 patients
Injection of substance into lower spine canal 62322
This procedure involves injecting a substance into your lower spine canal, often for pain relief or diagnostic purposes. A needle is carefully inserted into the area, and the substance is then administered. It's generally safe and can provide valuable information about your spinal health.
19 services19 patients
Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447
This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.
15 services15 patients
Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance 64488
This procedure involves injecting a local anesthetic into the abdominal wall to manage pain. It's carried out on both sides of the abdomen using imaging guidance for precision. This helps numb the area, providing relief from discomfort.
14 services14 patients

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 Nguyen's NPI number?

The NPI number for Ronald Nguyen is 1720436736. It was assigned to this individual provider in the NPPES registry on May 31, 2016.

Where is Ronald Nguyen located?

Ronald Nguyen practices at 2802 S Diamond St, Santa Ana, CA 92704. The listed phone number is (714) 924-4830.

What is Ronald Nguyen's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Ronald Nguyen enrolled in Medicare?

Yes. Ronald Nguyen 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 Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Nguyen reassigns Medicare benefits to 2 organizations: Premiercare Anesthesia Fountain Valley Inc (Fountain Valley, CA) and Orange Coast Anesthesia Inc (Orange, 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 Ronald Nguyen'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 Nguyen was last updated on May 31, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.