WILLIAM HIESINGER MD
NPI 1093913667
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Palo Alto, CA

Active since July 05, 2007PECOS EnrolledAccepts Medicare Assignment
76.5/100
CMS Quality Rating
300 PASTEUR DR, PALO ALTO, CA 94304(650) 723-4000 Get Directions Write a Review

NPPES record last updated: April 27, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About William Hiesinger Md NPPES

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

WILLIAM HIESINGER MD (NPI 1093913667) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Palo Alto, California, licensed in California (A141989) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2007).

NPPES Registry Identity

NPI1093913667
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameWILLIAM HIESINGERCredential: MD
Location Address300 PASTEUR DRPalo Alto, CA 94304-2203
Mailing Address300 Pasteur Dr Ste 100Palo Alto, CA 94304-2203 · (650) 723-4000
Sole ProprietorNo
Medical School CMSPerelman School Of Med At The University Of PennsylvaniaGraduated 2007
Enumeration DateJuly 5, 2007
Last NPPES UpdateApril 27, 2024
NPPES CertifiedApril 27, 2024
NPI 1093913667 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
License Licensed in CA · A141989
Definition

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

Also ListedSurgeryTaxonomy 208600000X · License MT191341 (PA), A141989 (CA)
300 PASTEUR DR, Palo Alto, CA 94304

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

William Hiesinger 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 ID4486941804
PECOS Enrollment IDI20160928000731
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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
48 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94304 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$206.04 typical visit price
range $70.37 – $206.04
Typical copayment $51.51 (range $17.59 – $51.51)
Most-billed visit code 99205
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

76.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.31
Promoting Interoperability100
Improvement Activities40
Cost43.95

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.

Nurse Practitioner (Adult Health)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychosomatic Medicine)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychologist (Clinical)
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
PALO ALTO, CA 94304
Colon & Rectal Surgery
300 PASTEUR DR
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
PALO ALTO, CA 94304

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 William Hiesinger's NPI number?

The NPI number for William Hiesinger is 1093913667. It was assigned to this individual provider in the NPPES registry on July 5, 2007.

Where is William Hiesinger located?

William Hiesinger practices at 300 Pasteur Dr, Palo Alto, CA 94304. The listed phone number is (650) 723-4000.

What is William Hiesinger's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is William Hiesinger enrolled in Medicare?

Yes. William Hiesinger 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 William Hiesinger was last updated on April 27, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.