NPPES file of Aug 9, 2026

Louise Chuu, M.D.

Obstetrics & Gynecology Physician · New York, NY

Louise Chuu, M.D. is an obstetrics & gynecology physician with a practice address in New York, New York, and NPI 1811044001, issued on Jan 3, 2007. Check the license (New York 241629, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811044001
Name
Louise Chuu
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
241629 NY
Self-reported in NPPES; status is on the state search
Practice location
4 West 58TH Street 9TH Floor, New York, NY 10019
Phone
(929) 480-5400
Enumerated
Jan 3, 2007
Record last updated
Jun 4, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(917) 261-2841
Medicare enrollment
Enrolled (PECOS I20080402000406); accepts Medicare assignment
Medical or professional school
State University Of Ny Upstate Medical University, 2002
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 4 West 58TH Street 9TH Floor

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

  1. Kathryn Rutenberg, M.D.Obstetrics & Gynecology Physician1700887205

Verify Louise Chuu 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 241629
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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58% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

70 Medicare Part D claims for 21 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Louise Chuu70
  2. Specialty average165

Most prescribed

  1. Estradiol34 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. North Shore-Lij Medical PCNew York, NY

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

Louise Chuu among 3,174 obstetrics & gynecology physician records in New York

Louise Chuu, M.D. is one of 3,174 obstetrics & gynecology physician records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 51% of them.

  • NPI issued2007 · 51% of these records are older, 41% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2002 · median 2002 among the 1,870 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in New York

There are 3,174 obstetrics & gynecology physician records in New York.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Wesley Blank, M.D.New York, NY 100191861493405
  2. Barbara Deli, M.D.New York, NY 100191487655171
  3. Michelle Francis, M.D.New York, NY 100191801897442
  4. Azin Khanmohamadi, M.D.New York, NY 100191184712259
  5. Mindy Kwan, M.D., F.A.C.O.G.New York, NY 100191386708014
  6. Harry Lee, M.D.New York, NY 100191396746566
  7. Lisa Loehrke-Sichhart, DONew York, NY 100191366454688
  8. Richard Lumiere, M.D.New York, NY 100191982792925

Common questions

What is Louise Chuu, M.D.'s NPI number?

Louise Chuu, M.D.'s National Provider Identifier (NPI) is 1811044001, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Louise Chuu, M.D. located?

The NPPES record lists a practice address at 4 West 58TH Street 9TH Floor, New York, NY, 10019. Phone: (929) 480-5400. Providers update this record themselves, so call before visiting.

How can I verify Louise Chuu, M.D.'s license?

NPPES lists New York license number 241629, 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.

How much does Louise Chuu, M.D. prescribe under Medicare Part D?

In 2024, Louise Chuu, M.D. had 70 Medicare Part D claims for 21 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

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.