NPPES file of Aug 9, 2026

John L. Guariglia, DDS

Oral and Maxillofacial Surgery (Dentist) · Brentwood, NY

John L. Guariglia, DDS is an oral and maxillofacial surgery (dentist) with a practice address in Brentwood, New York, and NPI 1891779278, issued on Nov 30, 2005. Check the license (New York 042338, 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
1891779278
Name
John L. Guariglia
Credential
DDS
Primary taxonomy
Oral and Maxillofacial Surgery (Dentist) 1223S0112X
License number
042338 NY
Self-reported in NPPES; status is on the state search
Practice location
601 Suffolk Avenue, Brentwood, NY 11717
Phone
(631) 273-4888
Enumerated
Nov 30, 2005
Record last updated
Jul 13, 2026
Fax
(631) 273-4042
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 John L. Guariglia 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 042338
    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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26% more Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024

513 Medicare Part D claims for 262 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. 249 claims were for opioids.

  1. John Guariglia513
  2. Specialty average406

Most prescribed

  1. Hydrocodone-Acetaminophen122 claims
  2. Amoxicillin106 claims
  3. Tramadol Hcl59 claims
  4. Penicillin V Potassium55 claims
  5. Acetaminophen-Codeine35 claims
  6. Oxycodone-Acetaminophen29 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: $178.95

2 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 4,075 providers of this specialty with any payment received $1,077.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Guariglia$178.95
  2. Specialty average$1,077.58

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

John L. Guariglia among 665 oral and maxillofacial surgery (dentist) records in New York

John L. Guariglia, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% 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. Christopher First, DMDBrentwood, NY 117171831133362
  2. Sachin Jamdar, DDSBrentwood, NY 117171770567133
  3. Gregory Bohle, D.D.S., M.D.Centereach, NY 117201538303243
  4. Rebecca FisherBethpage, NY 117141508490186
  5. Jeff Rossman, DDSCold Spring Harbor, NY 117241184617797
  6. David Miller, D.D.SCommack, NY 117251285658120
  7. Andrew BernardBay Shore, NY 117061063435790
  8. Richard Haimes, DDSBay Shore, NY 117061588706246

Common questions

What is John L. Guariglia, DDS's NPI number?

John L. Guariglia, DDS's National Provider Identifier (NPI) is 1891779278, issued on Nov 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John L. Guariglia, DDS located?

The NPPES record lists a practice address at 601 Suffolk Avenue, Brentwood, NY, 11717. Phone: (631) 273-4888. Providers update this record themselves, so call before visiting.

How can I verify John L. Guariglia, DDS's license?

NPPES lists New York license number 042338, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does John L. Guariglia, DDS prescribe under Medicare Part D?

In 2024, John L. Guariglia, DDS had 513 Medicare Part D claims for 262 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.