NPPES file of Aug 9, 2026

Louis Chung, MD

Hospitalist Physician · New York, NY

Louis Chung, MD is a hospitalist physician with a practice address in New York, New York, and NPI 1639486517, issued on Sep 13, 2010. Check the license (New York 258623, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639486517
Name
Louis Chung
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
258623 NY
Self-reported in NPPES; status is on the state search
Practice location
575 Lexington Ave, New York, NY 10022
Phone
(212) 746-4071
Enumerated
Sep 13, 2010
Record last updated
Aug 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110503000561); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 575 Lexington Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sonia BasraPhysical Therapist1295127009
  2. Alexander Chen, MDInternal Medicine Physician1912609181
  3. Kristen Crisara, DPTPhysical Therapist1730460809
  4. Prachi Dalal, PTPhysical Therapist1396074191
  5. Debora Farazmand, RPHPharmacist1720264526
  6. Joel Grad, M.D.Orthopaedic Hand Surgery Physician1285883942

Verify Louis Chung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 258623
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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The MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Weill Medical College OF CornellNew York, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Louis Chung among 2,067 hospitalist physician records in New York

Louis Chung, MD is one of 2,067 hospitalist physician records with a practice address in New York. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 28% of them.

  • NPI issued2010 · 28% of these records are older, 69% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated2000 · median 2013 among the 1,716 with a school on file
  • Record last updated2020 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in New York

There are 2,067 hospitalist physician records in New York.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Pooja Singh, M.DNew York, NY 100221417288861
  2. Michael Amador, MDNew York, NY 100211609519073
  3. Alaska Fierro, MDNew York, NY 100211659068625
  4. Rateb Fouad, MDNew York, NY 100211386376317
  5. Alan Ge, MDNew York, NY 100211477203149
  6. Jesse Gruber, MDNew York, NY 100211679149199
  7. Jason GusdorfNew York, NY 100211164125654
  8. Rebecca Kim, MDNew York, NY 100211831832641

Common questions

What is Louis Chung, MD's NPI number?

Louis Chung, MD's National Provider Identifier (NPI) is 1639486517, issued on Sep 13, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Louis Chung, MD located?

The NPPES record lists a practice address at 575 Lexington Ave, New York, NY, 10022. Phone: (212) 746-4071. Providers update this record themselves, so call before visiting.

How can I verify Louis Chung, MD's license?

NPPES lists New York license number 258623, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Louis Chung, MD's MIPS final score?

The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.