DR. STEVEN GEORGE XANTHOPOULOS M.D.
NPI 1588736573
Anesthesiology in Menlo Park, CA

Q: What is Steven Xanthopoulos's NPI number?

The NPI number for Steven Xanthopoulos is 1588736573. It was assigned to this individual provider in the NPPES registry on November 14, 2006.

Q: What is Steven Xanthopoulos's specialty?

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

Active since November 14, 2006PECOS EnrolledAccepts Medicare Assignment

1422 EL CAMINO REAL, MENLO PARK, CA 94025(650) 903-9500(650) 903-9900 Get Directions Write a Review

NPPES record last updated: June 20, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Steven George Xanthopoulos M.d. NPPES

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

DR. STEVEN GEORGE XANTHOPOULOS M.D. (NPI 1588736573) is an individual anesthesiology provider in Menlo Park, California, licensed in California (A88715) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2003).

NPPES Registry Identity

NPI1588736573

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. STEVEN GEORGE XANTHOPOULOSCredential: M.D.

Location Address1422 EL CAMINO REALMenlo Park, CA 94025-4110

Mailing Address1422 El Camino RealMenlo Park, CA 94025-4110 · (650) 903-9500 · Fax (650) 903-9900

Phone(650) 903-9500

Fax(650) 903-9900

Sole ProprietorNo

Medical School CMSOtherGraduated 2003

Enumeration DateNovember 14, 2006

Last NPPES UpdateJune 20, 2014

✔ NPI 1588736573 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A88715

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.

1422 EL CAMINO REAL, Menlo Park, CA 94025

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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

Dr. Steven George Xanthopoulos 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 ID9032219613

PECOS Enrollment IDI20070711000815

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 Steven Xanthopoulos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

El Camino Anesthesia

18 mi

Anesthesiology

815 POLLARD RD
Los Gatos, CA 95032

Reassigned Medicare billing, California enrollment
84 clinicians in this Medicare group

NPI 1356910053 (408) 378-6131

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

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.

14 services14 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.

Reported Quality Measures

Post-Anesthetic Transfer of Care Measure: Procedure Room to a Post Anesthesia Care Unit (PACU)

Percentage of patients, regardless of age, who are under the care of an anesthesia practitioner and are admitted to a PACU or other non-ICU location in which a post-anesthetic formal transfer of care protocol or checklist which includes the key transfer of…

9%44 patients1/55-star benchmark: 100%

Pre-operative OSA assessment

Percentage of patients who undergo a surgical procedure in the operating room/procedure room that have a pre-operative assessment for Obstructive Sleep Apnea (OSA)

43%125 patients1/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

KATARZYNA M CIESIELSKI MD

Anesthesiology