NPPES file of Aug 9, 2026

John Cohen, DDS

Oral and Maxillofacial Surgery (Dentist) · Lennox, CA

John Cohen, DDS is an oral and maxillofacial surgery (dentist) with a practice address in Lennox, California, and NPI 1154492379, issued on Nov 10, 2006. Check the license (California 40423, as entered in NPPES) with the California 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
1154492379
Name
John Cohen
Credential
DDS
Primary taxonomy
Oral and Maxillofacial Surgery (Dentist) 1223S0112X
License number
40423 CA
Self-reported in NPPES; status is on the state search
Practice location
10823 Hawthorne Blvd Ste A, Lennox, CA 90304
Phone
(818) 786-6000
Enumerated
Nov 10, 2006
Record last updated
Oct 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(818) 786-8820
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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Also registered at 10823 Hawthorne Blvd Ste A

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

  1. Bass Hanson, DDSDentist1306069505

Verify John Cohen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 40423
    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
Find the California license search

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42% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024

235 Medicare Part D claims for 89 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D.

  1. John Cohen235
  2. Specialty average406

Most prescribed

  1. Amoxicillin90 claims
  2. Ibuprofen75 claims
  3. Chlorhexidine Gluconate26 claims
  4. Azithromycin16 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: $166.45

2 payments; by number, the most common kind was travel and lodging; the largest payer was A-dec, Inc. 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 Cohen$166.45
  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 Cohen among 987 oral and maxillofacial surgery (dentist) records in California

John Cohen, DDS is one of 987 oral and maxillofacial surgery (dentist) records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 66% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 7% of these records are
  • Record last updated2020 · 67% 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 California 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 California

There are 987 oral and maxillofacial surgery (dentist) records in California.

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

  1. Richard Boudreau, D.D.S.Marina Del Rey, CA 902921003952334
  2. Ameet Chopra, DDSRedondo Beach, CA 902781124200522
  3. Robert Posek, DDSRedondo Beach, CA 902781518173582
  4. J Arce, DDS INCRedondo Beach, CA 902771114091014
  5. Barry Johnsin, D.D.S.Redondo Beach, CA 902771841210036
  6. Richard Schell, DDSRedondo Beach, CA 902771083799415
  7. Joshua Wohlgemuth, D.D.S.Redondo Beach, CA 902771174978720
  8. Ariel Farahi, DMD, MDRancho Palos Verdes, CA 902751578919726

Common questions

What is John Cohen, DDS's NPI number?

John Cohen, DDS's National Provider Identifier (NPI) is 1154492379, issued on Nov 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Cohen, DDS located?

The NPPES record lists a practice address at 10823 Hawthorne Blvd Ste A, Lennox, CA, 90304. Phone: (818) 786-6000. Providers update this record themselves, so call before visiting.

How can I verify John Cohen, DDS's license?

NPPES lists California license number 40423, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Cohen, DDS prescribe under Medicare Part D?

In 2024, John Cohen, DDS had 235 Medicare Part D claims for 89 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.