NPPES file of Aug 9, 2026

Marguerite Grossman, DDS

Oral and Maxillofacial Surgery (Dentist) · Brooklyn, NY

Marguerite Grossman, DDS is an oral and maxillofacial surgery (dentist) with a practice address in Brooklyn, New York, and NPI 1497886543, issued on Mar 8, 2007. Check the license (New York 047727, as entered in NPPES) with the New York board that licenses this profession; 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
1497886543
Name
Marguerite Grossman
Credential
DDS
Primary taxonomy
Oral and Maxillofacial Surgery (Dentist) 1223S0112X
License number
047727 NY
Self-reported in NPPES; status is on the state search
Practice location
1441 43RD St Ste 1, Brooklyn, NY 11219
Phone
(718) 787-5656
Enumerated
Mar 8, 2007
Record last updated
Jul 21, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Marguerite Grossman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 047727
    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
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93% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024

30 Medicare Part D claims for 18 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Marguerite Grossman30
  2. Specialty average406

Most prescribed

  1. Amoxicillin11 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.

Marguerite Grossman among 665 oral and maxillofacial surgery (dentist) records in New York

Marguerite Grossman, DDS is one of 665 oral and maxillofacial surgery (dentist) 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 46% of them.

  • NPI issued2007 · 46% of these records are older, 37% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 13% of these records are
  • Record last updated2026 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Oral and Maxillofacial Surgery (Dentist) providers in New York

There are 665 oral and maxillofacial surgery (dentist) records in New York.

The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes

  1. Andrew Onyejiuwa, DMDBrooklyn, NY 112181619002912
  2. Michael Sole, DDSBrooklyn, NY 112201427277516
  3. Fred Lane, DDSBklyn, NY 112161134288335
  4. Ghazal Mahjoubi, DMDBrooklyn, NY 112221043568751
  5. Charles Ptak, D.D.S.Brooklyn, NY 112221083629778
  6. Paul Baker, DDSBrooklyn, NY 112151790829653
  7. Francis Chionchio, DDSBrooklyn, NY 112151235273194
  8. Avi Feygin, DMDBrooklyn, NY 112231396083952

Common questions

What is Marguerite Grossman, DDS's NPI number?

Marguerite Grossman, DDS's National Provider Identifier (NPI) is 1497886543, issued on Mar 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Marguerite Grossman, DDS located?

The NPPES record lists a practice address at 1441 43RD St Ste 1, Brooklyn, NY, 11219. Phone: (718) 787-5656. Providers update this record themselves, so call before visiting.

How can I verify Marguerite Grossman, DDS's license?

NPPES lists New York license number 047727, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Marguerite Grossman, DDS prescribe under Medicare Part D?

In 2024, Marguerite Grossman, DDS had 30 Medicare Part D claims for 18 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.