Dr. Louis Fernandez Chai, MD
- Part D claims, 2024
- 56
- Publications
- 11
- Hospital affiliations
- 3
- Industry payments
- $2,531
- Medical group
- 1
- Practice address
- 3401-41 N Broad St, Philadelphia, PA 19140
- Practice phone
- Call (215) 707-5303
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Temple University Hospital - Main Campus
Philadelphia, Pennsylvania
Find Dr. Chai's professional email, personal email and mobile number
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Dr. Louis Fernandez Chai is a general surgeon in Philadelphia, Pennsylvania
Dr. Chai practices at Temple University Hospital - Main Campus in Philadelphia, Pennsylvania.
Dr. Chai's NPI, 1164870689, was assigned on May 25, 2016. Dr. Chai graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) in 2016. Dr. Chai holds Pennsylvania license MT211068.
- NPI
- 1164870689NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991215709
- NPI enumeration date
- May 25, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (215) 707-5303
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Louis Fernandez Chai practices at Temple University Hospital - Main Campus in Philadelphia, Pennsylvania
Dr. Chai's primary practice is Temple University Hospital - Main Campus, at 3401-41 N Broad St, Philadelphia, PA 19140 in Philadelphia County. The practice phone is (215) 707-5303.
- Temple University Hospital - Main Campus3401-41 N Broad St, Philadelphia, PA 19140 · Philadelphia CountyPhone(215) 707-5303
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Louis Fernandez Chai is affiliated with 4 sites of care and 1 medical group
Dr. Chai's primary practice is Temple University Hospital - Main Campus in Philadelphia, Pennsylvania. Dr. Chai is also affiliated with Temple University Hospital. The medical group on file is Temple Faculty Physicians. Dmand AI also links Dr. Chai to 2 more hospitals, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Louis Fernandez Chai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chai practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Temple University Hospital - Main Campus | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Louis Fernandez Chai is one of 1,398 general surgeons in Pennsylvania
Surgery is Dr. Chai's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chai is licensed in Pennsylvania.
Specialties and state licenses
- Surgery, PennsylvaniaPrimary
General surgeons near Dr. Chai
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Louis Fernandez Chai's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Chai's median patient age at 73, with 67% women.
Dr. Chai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Louis Fernandez Chai wrote 56 Medicare Part D claims in 2024
In 2024, Dr. Chai wrote 56 Medicare Part D claims for 14 patients. 88% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $89 in total drug cost.
Dr. Chai's Part D claims by kind of drug, 2024
- Generic49 claims88%
- Brand-name and other7 claims13%
Dr. Chai's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chai's Part D claims, 2024
- Opioids23%13 of 56 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Louis Fernandez Chai takes part in Medicare
Dr. Chai accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Louis Fernandez Chai has 11 publications on record
Dmand AI links 11 papers to Dr. Chai, published from 2019 to 2025. 2024 was the busiest year, with 4. Dr. Chai's most frequent co-authors are Tim Nico Beck, MD, PhD, Whitney Burrows, MD and Melissa Calt.
Dr. Chai's papers by year, 2019 to 2025
Dr. Chai's most frequent co-authors
Recent publications by Dr. Chai
J Thorac Cardiovasc Surg
Thorac Surg Clin
See who Dr. Chai researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chai works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Louis Fernandez Chai received $2,531 in industry payments from 2017 to 2025
CMS Open Payments shows 29 general payments to Dr. Chai from 8 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 61% of the total. AtriCure, Inc. paid the most, $1,450.
General payments to Dr. Chai by program year, 2017 to 2025
General payments to Dr. Chai by kind, 2017 to 2025
- Food and beverage$1,53661%
- Travel and lodging$99539%
Companies that paid Dr. Chai the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Louis Fernandez Chai graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc)
Dr. Chai graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Louis Fernandez Chai's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Louis Fernandez Chai
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Louis Fernandez Chai's NPI number?
Dr. Louis Fernandez Chai's NPI number is 1164870689. It was assigned on May 25, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Louis Fernandez Chai?
Dr. Louis Fernandez Chai is a general surgeon in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Louis Fernandez Chai practice?
Dr. Chai practices at 3401-41 N Broad St, Philadelphia, PA 19140. Dr. Chai's primary practice is Temple University Hospital - Main Campus in Philadelphia, Pennsylvania. Dmand AI also links Dr. Chai to 2 hospitals.
What is Dr. Louis Fernandez Chai's office phone number?
The practice phone on file for Dr. Chai is (215) 707-5303.
What is Dr. Louis Fernandez Chai's medical license number?
Dr. Chai holds Pennsylvania license MT211068.
Which hospitals is Dr. Louis Fernandez Chai affiliated with?
Dr. Chai is affiliated with Temple University Hospital. Dmand AI links Dr. Chai to 2 more hospitals.
What medical group is Dr. Louis Fernandez Chai part of?
Dr. Chai is linked to Temple Faculty Physicians.
Does Dr. Louis Fernandez Chai accept Medicare?
Yes. CMS lists Dr. Chai as accepting Medicare assignment.
Where did Dr. Louis Fernandez Chai go to medical school?
Dr. Chai graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) in 2016.
What drugs does Dr. Louis Fernandez Chai prescribe most?
In 2023 Medicare Part D data, Dr. Chai's most prescribed drugs by claims were Oxycodone HCl.
Show 4 more questionsShow fewer questions
Has Dr. Louis Fernandez Chai received payments from drug or device companies?
CMS Open Payments shows $2,531 in general payments to Dr. Chai from 8 companies from 2017 to 2025. The largest total came from AtriCure, Inc.
How long has Dr. Louis Fernandez Chai been practicing?
Dr. Chai graduated from medical school in 2016, 10 years ago.
Does Dr. Louis Fernandez Chai do research?
Dmand AI links 11 publications to Dr. Chai, published from 2019 to 2025.
Who does Dr. Louis Fernandez Chai publish with?
Dr. Chai's most frequent co-authors are Tim Nico Beck, MD, PhD (1 shared paper), Whitney Burrows, MD (1 shared paper) and Melissa Calt (1 shared paper).
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