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JOHN HANH NGUYEN M.D.
NPI 1992993893
Anesthesiology in Palo Alto, CA

Active since October 05, 2007PECOS EnrolledAccepts Medicare Assignment
795 EL CAMINO REAL, PALO ALTO, CA 94301(650) 853-2894 Get Directions Write a Review

NPPES record last updated: August 25, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About John Hanh Nguyen M.d. NPPES

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

JOHN HANH NGUYEN M.D. (NPI 1992993893) is an individual anesthesiology provider in Palo Alto, California, licensed in California (A96779) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Stanford, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1992993893
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameJOHN HANH NGUYENCredential: M.D.
Location Address795 EL CAMINO REALPalo Alto, CA 94301-2302
Mailing AddressDepartment Of Anesthesia, H3580, Stanford University Medical CenterStanford, CA 94305 · (408) 569-0524
Phone(650) 853-2894
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateOctober 5, 2007
Last NPPES UpdateAugust 25, 2023
NPPES CertifiedAugust 25, 2023
✔ NPI 1992993893 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A96779
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.
795 EL CAMINO REAL, Palo Alto, CA 94301
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Secondary Practice Location 1

Location 1Department of Anesthesia, H3580, Stanford University Medical CenterStanford, CA 94305 · Phone (408) 569-0524

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

John Hanh Nguyen 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.

PECOS PAC ID1850441122
PECOS Enrollment IDI20090608000287
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 John Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation
Same address
Multi-Specialty
795 EL CAMINO REAL
Palo Alto, CA 94301
NPI 1013950807 (650) 321-4121

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 2

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 procedure to correct abnormal heart rhythm 00410
Anesthesia for a procedure to correct abnormal heart rhythm ensures you won't feel pain during the treatment. It can be general, where you're completely asleep, or local, numbing only a specific area. Your vital signs are monitored to ensure safety during the procedure.
16 services16 patients
Anesthesia for x-ray or radiation therapy 01922
Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.
13 services12 patients

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.

DR. SHIRA BETH LIPTON M.D.
Dermatology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2982
DR. KATHERINE A KWIATKOWSKI MD
Psychiatry & Neurology (Psychiatry)
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2904
MS. HEATHER HUGHES ROSE PT
Physical Therapist
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (707) 280-2417
CRYSTAL TSAI MS, RD
Dietitian, Registered
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2961
RUTH ROTHMAN MD
Dermatology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-4865
WINONA TAN M.D.
Obstetrics & Gynecology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2917
SHERRY HUANG MD
Family Medicine
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2984
DR. JULIA MCKENZIE GABHART M.D.
Pediatrics
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 321-4121

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 John Nguyen's NPI number?

The NPI number for John Nguyen is 1992993893. It was assigned to this individual provider in the NPPES registry on October 5, 2007.

Where is John Nguyen located?

John Nguyen practices at 795 El Camino Real, Palo Alto, CA 94301. The listed phone number is (650) 853-2894.

What is John Nguyen's specialty?

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

Is John Nguyen enrolled in Medicare?

Yes. John 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 John Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Nguyen reassigns Medicare benefits to Sutter Bay Medical Foundation (Palo Alto, 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 John 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 John Nguyen was last updated on August 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.