NPPES file of Aug 9, 2026

Alexandra G. St. Louis, M.D.

Family Medicine Physician · Malverne, NY

Alexandra G. St. Louis, M.D. is a family medicine physician with a practice address in Malverne, New York, and NPI 1235679267, issued on Feb 23, 2017. Check the license (New York 319870, 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
1235679267
Name
Alexandra G. St. Louis
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
319870 NY
Self-reported in NPPES; status is on the state search
Practice location
306 Hempstead Ave, Malverne, NY 11565
Phone
(516) 678-0076
Enumerated
Feb 23, 2017
Record last updated
May 3, 2023
Fax
(516) 763-0981
Medicare enrollment
Enrolled (PECOS I20230213001576); 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 306 Hempstead Ave

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

  1. Mary Conley, NPFamily Nurse Practitioner1922166909
  2. Robert Curran, M.D.Internal Medicine Physician1700820818
  3. Mary Ann Glick, NPNurse Practitioner1447291596
  4. Aricha Harker-Mayo, MS, RD, CDNRegistered Dietitian1245448547
  5. Jennifer Khachadurian, D.O.Family Medicine Physician1306282330
  6. Christine Weiss, APN-CFamily Nurse Practitioner1376986687

Verify Alexandra G. St. Louis 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 319870
    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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38% fewer Medicare Part D claims than the average family medicine physician in 2024

2,211 Medicare Part D claims for 373 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Alexandra St. Louis2,211
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium151 claims
  2. Amlodipine Besylate126 claims
  3. Levothyroxine Sodium98 claims
  4. Losartan Potassium88 claims
  5. Escitalopram Oxalate74 claims
  6. Azithromycin69 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.

Industry payments in 2024: $1,120.18

54 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexandra St. Louis$1,120.18
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Chs Physician Partners PCRoslyn, NY

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

Alexandra G. St. Louis among 6,417 family medicine physician records in New York

Alexandra G. St. Louis, M.D. is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 77% of them.

  • NPI issued2017 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2016 · median 2007 among the 4,188 with a school on file
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 family medicine physician records list a practice address in Malverne

They are 4 of the 164 NPPES records with a practice address in Malverne, and 6,417 family medicine physician records in New York.

The 8 family medicine physician records with the nearest ZIP codes

  1. George Blatti, M.D.Malverne, NY 115651154489284
  2. Jennifer Khachadurian, D.O.Malverne, NY 115651306282330
  3. Darla Lynch, M.D.Malverne, NY 115651679767180
  4. Joel Attard, DOMerrick, NY 115661629485305
  5. Michael Belfiore, DOMerrick, NY 115661598801557
  6. Alexis Chiusano, FNPMerrick, NY 115661255911251
  7. Susan Groh, M.D.Merrick, NY 115661750360848
  8. Mark Haltrecht, D.O.Merrick, NY 115661366510620

Common questions

What is Alexandra G. St. Louis, M.D.'s NPI number?

Alexandra G. St. Louis, M.D.'s National Provider Identifier (NPI) is 1235679267, issued on Feb 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Alexandra G. St. Louis, M.D. located?

The NPPES record lists a practice address at 306 Hempstead Ave, Malverne, NY, 11565. Phone: (516) 678-0076. Providers update this record themselves, so call before visiting.

How can I verify Alexandra G. St. Louis, M.D.'s license?

NPPES lists New York license number 319870, 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 Alexandra G. St. Louis, M.D. prescribe under Medicare Part D?

In 2024, Alexandra G. St. Louis, M.D. had 2,211 Medicare Part D claims for 373 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.