1. Home
  2. Directory
  3. Pennsylvania
  4. Philadelphia
  5. Thoracic Surgery Cardiothoracic Vascular Surgery
  6. NPI Profile

LOUIS FERNANDEZ CHAI M.D.
NPI 1164870689
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Philadelphia, PA

Active since May 25, 2016PECOS EnrolledAccepts Medicare Assignment
333 COTTMAN AVE, PHILADELPHIA, PA 19111(215) 728-6900(215) 728-2773 Get Directions Write a Review

NPPES record last updated: May 29, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Louis Fernandez Chai M.d. NPPES

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

LOUIS FERNANDEZ CHAI M.D. (NPI 1164870689) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD465049) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Temple Health - Chestnut Hill Hospital, and is a graduate of Rutgers R W Johnson Medical School (cam/new Bruns/pisc) (2016).

NPPES Registry Identity

NPI1164870689
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameLOUIS FERNANDEZ CHAICredential: M.D.
Location Address333 COTTMAN AVEPhiladelphia, PA 19111-2434
Mailing Address3500 N Broad StPhiladelphia, PA 19140-4106 · (215) 707-2433
Phone(215) 728-6900
Fax(215) 728-2773
Sole ProprietorNo
Medical School CMSRutgers R W Johnson Medical School (cam/new Bruns/pisc)Graduated 2016
Enumeration DateMay 25, 2016
Last NPPES UpdateMay 29, 2025
NPPES CertifiedMay 29, 2025
✔ NPI 1164870689 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
License✔ Licensed in PA · MD465049
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.
333 COTTMAN AVE, Philadelphia, PA 19111
Open in Google Maps ↗

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

Louis Fernandez Chai 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 ID5991215709
PECOS Enrollment IDI20250611000093
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Temple Health - Chestnut Hill Hospital

Acute Care Hospitals · Philadelphia, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390026
Location8835 Germantown AvenuePhiladelphia, PA 19118 · Philadelphia County
Emergency services

Temple University Hospital

Acute Care Hospitals · Philadelphia, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390027
Location3401 North Broad StreetPhiladelphia, PA 19140 · Philadelphia County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19111 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
$180.99 typical visit price
range $59.88 – $180.99
Typical copayment $45.24 (range $14.97 – $45.24)
Most-billed visit code 99205
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
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.

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.

FOX CHASE CANCER CENTER MEDICAL GROUP, INC.
Anesthesiology
333 COTTMAN AVE, MED STAFF OFFICE
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-6900
JAMES SUN MD
Surgery (Surgical Oncology)
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 854-9799
MS. MALA T KAILASAM MD
Internal Medicine
333 COTTMAN AVE, FOX CHASE CANCER CENTER
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-6900
HEALTH SERVICES OF FOX CHASE CANCER CTR.
Radiology (Diagnostic Radiology)
333 COTTMAN AVE, RADIOLOGY ASSOCIATES OF FCCC
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-6900
ELENA DREYZIN PA-C
Physician Assistant
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (888) 369-2427
FREWEINI TESFALEDET PA
Physician Assistant
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-6900
MARIUSZ A WASIK MD
Pathology (Anatomic Pathology)
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-3675
DR. BARBARA C. CAVANAUGH M.D.
Radiology (Diagnostic Radiology)
333 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 728-3883

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 Louis Chai's NPI number?

The NPI number for Louis Chai is 1164870689. It was assigned to this individual provider in the NPPES registry on May 25, 2016.

Where is Louis Chai located?

Louis Chai practices at 333 Cottman Ave, Philadelphia, PA 19111. The listed phone number is (215) 728-6900.

What is Louis Chai's specialty?

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

Is Louis Chai enrolled in Medicare?

Yes. Louis Chai 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.

Is Louis Chai affiliated with any hospitals?

According to CMS data, Louis Chai is affiliated with Temple Health - Chestnut Hill Hospital and Temple University Hospital.

When was this NPI record last updated?

The NPPES record for Louis Chai was last updated on May 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.