Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

PETER TZEE TSENG SUN MD
NPI 1043263304
Anesthesiology in San Jose, CA

Q: What is Peter Sun's NPI number?

The NPI number for Peter Sun is 1043263304. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Q: What is Peter Sun's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Peter Sun was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.

Active since May 18, 2006PECOS Enrolled

225 N JACKSON AVE, SAN JOSE, CA 95116(408) 259-5000(408) 928-7041 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Peter Tzee Tseng Sun Md NPPES

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

PETER TZEE TSENG SUN MD (NPI 1043263304) is an individual anesthesiology provider in San Jose, California, licensed in California (A25547) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Cincinnati College Of Medicine (1972).

NPPES Registry Identity

NPI1043263304

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NamePETER TZEE TSENG SUNCredential: MD

Location Address225 N JACKSON AVESan Jose, CA 95116-1603

Mailing AddressPo Box 84294Seattle, WA 98124-5594 · (503) 372-2740 · Fax (503) 372-2754

Phone(408) 259-5000

Fax(408) 928-7041

Sole ProprietorNo

Medical School CMSUniversity Of Cincinnati College Of MedicineGraduated 1972

Enumeration DateMay 18, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1043263304 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A25547

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.

225 N JACKSON AVE, San Jose, CA 95116

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Other Identifiers 1

Medicaid00A255470CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Peter Tzee Tseng Sun 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 ID6800952870

PECOS Enrollment IDI20090227000409

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.

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 other procedure on eye 00140

Anesthesia for an eye procedure involves administering medication to numb your eye and surrounding area, ensuring you feel no pain during the operation. It can be local (only the eye area) or general (whole body). It's safe and helps make the procedure comfortable.

136 services122 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…

2%203 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.

DR. JOHN J REDINSKI DO

Internal Medicine (Critical Care Medicine)

225 N JACKSON AVE
SAN JOSE, CA 95116

Santa Clara County (408) 347-4051

DR. KOMAL J BHATT MD

Internal Medicine

225 N JACKSON AVE
SAN JOSE, CA 95116

Santa Clara County (408) 259-5000

CHRISTINE LOUIE MD

Pathology (Anatomic Pathology & Clinical Pathology)

225 N JACKSON AVE
SAN JOSE, CA 95116

Santa Clara County (408) 259-5000

GERALD A WEISS M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

225 N JACKSON AVE
SAN JOSE, CA 95116

Santa Clara County (408) 866-4060

SHALIN HIRA PATEL M.D

Emergency Medicine

225 N JACKSON AVE
SAN JOSE, CA 95116

Santa Clara County (408) 923-7121

DR. LINDA LIEN TRAN PHARMD

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)

225 N JACKSON AVE, PHARMACY DEPARTMENT
SAN JOSE, CA 95116

Santa Clara County (408) 259-5000

QING WANG MD

Anesthesiology

225 N JACKSON AVE
SAN JOSE, CA 95116

Santa Clara County (408) 259-5000

DR. NIV E DECALO M.D.

Radiology (Diagnostic Radiology)

225 N JACKSON AVE
SAN JOSE, CA 95116

Santa Clara County (408) 259-5000

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 Peter Sun's NPI number?

The NPI number for Peter Sun is 1043263304. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Peter Sun located?

Peter Sun practices at 225 N Jackson Ave, San Jose, CA 95116. The listed phone number is (408) 259-5000.

What is Peter Sun's specialty?

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

Is Peter Sun enrolled in Medicare?

Yes. Peter Sun 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.

When was this NPI record last updated?

The NPPES record for Peter Sun was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.