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JOSEPH NGUYEN MD
NPI 1275982449
Anesthesiology in San Diego, CA

Active since June 08, 2016PECOS EnrolledAccepts Medicare Assignment
79.24/100
CMS Quality Rating
3626 RUFFIN RD, SAN DIEGO, CA 92123(588) 565-9666 Get Directions Write a Review

NPPES record last updated: March 31, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Joseph Nguyen Md NPPES

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

JOSEPH NGUYEN MD (NPI 1275982449) is an individual anesthesiology provider in San Diego, California, licensed in California (A161302) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1275982449
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameJOSEPH NGUYENCredential: MD
Location Address3626 RUFFIN RDSan Diego, CA 92123-1810
Mailing Address3626 Ruffin RdSan Diego, CA 92123-1810 · (858) 565-9666
Phone(588) 565-9666
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJune 8, 2016
Last NPPES UpdateMarch 31, 2022
NPPES CertifiedMarch 31, 2022
✔ NPI 1275982449 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A161302
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.
3626 RUFFIN RD, San Diego, CA 92123
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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

Joseph 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 ID8729370606
PECOS Enrollment IDI20220317001917
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 Reassignment

Medicare enrollment records show Joseph Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anesthesia Service Medical Group
Same address
Anesthesiology
3626 RUFFIN RD
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
  • 269 clinicians in this Medicare group
NPI 1053354233 (858) 565-9666

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 4

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 upper abdomen 00790
Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.
16 services16 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.
15 services15 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.
14 services14 patients
Anesthesia for other procedure on lower abdomen 00840
Anesthesia for a lower abdomen procedure involves medication to eliminate pain during surgery. You might be awake but relaxed and pain-free, or you may be completely unconscious. It's administered to ensure comfort and safety throughout the operation.
11 services11 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.24/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.57
Improvement Activities40

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.

THOMAS J. PIETUCH M.D.
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
DR. JEFFREY KOJI SAKIHARA M.D.
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
MARK SETH CHRISTOFFERSON MD
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
QUINN S HUME DO
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
STEVEN A. SALTZ M.D.
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
TATYANA FELDMAN MD
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
DR. JAMES BRIAN BILLYS MD
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
DARCI J. TOM M.D.
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666

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 Joseph Nguyen's NPI number?

The NPI number for Joseph Nguyen is 1275982449. It was assigned to this individual provider in the NPPES registry on June 8, 2016.

Where is Joseph Nguyen located?

Joseph Nguyen practices at 3626 Ruffin Rd, San Diego, CA 92123. The listed phone number is (588) 565-9666.

What is Joseph Nguyen's specialty?

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

Is Joseph Nguyen enrolled in Medicare?

Yes. Joseph 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 organization bills Medicare for Joseph Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Nguyen reassigns Medicare benefits to Anesthesia Service Medical Group (San Diego, CA). The 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 Joseph 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 Joseph Nguyen was last updated on March 31, 2022. 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.