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DR. AIMAN ALASSAR MD, PHD
NPI 1316553878
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Palo Alto, CA

Active since September 21, 2020PECOS Enrolled
88.23/100
CMS Quality Rating
500 PASTEUR DR, PALO ALTO, CA 94304(650) 387-1866 Get Directions Write a Review

NPPES record last updated: October 16, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Oct 16, 2020, Sep 21, 2020 (2 updates tracked since 2020).

About Dr. Aiman Alassar Md, Phd NPPES

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

DR. AIMAN ALASSAR MD, PHD (NPI 1316553878) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Palo Alto, California, licensed in California (651) and active in the NPI registry since September 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1316553878
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameDR. AIMAN ALASSARCredential: MD, PHD
Location Address500 PASTEUR DRPalo Alto, CA 94304-1048
Mailing Address3051 Mark AveSanta Clara, CA 95051-2332 · (650) 521-2304
Phone(650) 387-1866
Sole ProprietorNo
Enumeration DateSeptember 21, 2020
Last NPPES UpdateOctober 16, 20202 updates tracked since enumeration
NPPES CertifiedOctober 16, 2020
✔ NPI 1316553878 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 · 651
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 ListedTransplant SurgeryTaxonomy 204F00000X · License 651 (CA)
500 PASTEUR DR, Palo Alto, CA 94304
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Aiman Alassar Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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.

88.23/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality72.93
Promoting Interoperability100
Improvement Activities40
Cost60

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. INDRANI GUZMAN DAS MD, MPH
Student in an Organized Health Care Education/Training Program
500 PASTEUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 723-4000
CALLIE KIYONO VANWINKLE
Student in an Organized Health Care Education/Training Program
500 PASTEUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 724-4750
DR. RAVNIT K. BHATIA DO
Internal Medicine (Geriatric Medicine)
500 PASTEUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 723-4000
DIVYA RAMAKRISHNAN MD
Student in an Organized Health Care Education/Training Program
500 PASTEUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 723-4000
HANS-CHRISTOPH RICHARD FREDERIK BECKER MD
Radiology (Diagnostic Radiology)
500 PASTEUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 723-4000
JUDITH SUNAH KIM PHARMD
Pharmacist
500 PASTEUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 723-8561
JON HOCHSTEIN
Student in an Organized Health Care Education/Training Program
500 PASTEUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 723-5000
KIMBERLY MAY LAU PHARMD
Pharmacist (Oncology)
500 PASTEUR DR
PALO ALTO, CA 94304
Santa Clara County (415) 290-1588

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 Aiman Alassar's NPI number?

The NPI number for Aiman Alassar is 1316553878. It was assigned to this individual provider in the NPPES registry on September 21, 2020.

Where is Aiman Alassar located?

Aiman Alassar practices at 500 Pasteur Dr, Palo Alto, CA 94304. The listed phone number is (650) 387-1866.

What is Aiman Alassar's specialty?

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

Is Aiman Alassar enrolled in Medicare?

Yes. Aiman Alassar is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Aiman Alassar was last updated on October 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.