NPPES file of Aug 9, 2026

Darren Smolkin, DDS

Endodontics · Torrance, CA

Darren Smolkin, DDS is an endodontics with a practice address in Torrance, California, and NPI 1720154651, issued on Nov 24, 2006. Check the license (California 45021, 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
1720154651
Name
Darren Smolkin
Credential
DDS
Primary taxonomy
Endodontics 1223E0200X
License number
45021 CA
Self-reported in NPPES; status is on the state search
Practice location
23520 Crenshaw Blvd, Torrance, CA 90505
Phone
(310) 539-7835
Enumerated
Nov 24, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(310) 248-3839
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 23520 Crenshaw Blvd

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

  1. Gordon Fong, D.D.S.General Practice Dentistry1437345824
  2. Janice Fukushima, DDSGeneral Practice Dentistry1972773257
  3. Mark Kahn, DDSGeneral Practice Dentistry1346216066
  4. Manuel RomanGeneral Practice Dentistry1285272120

Verify Darren Smolkin 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 45021
    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

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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27% more Medicare Part D claims than the average endodontics in 2024

154 Medicare Part D claims for 84 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Darren Smolkin154
  2. Specialty average121

Most prescribed

  1. Ibuprofen77 claims
  2. Amoxicillin67 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.

Darren Smolkin among 1,018 endodontics records in California

Darren Smolkin, DDS is one of 1,018 endodontics records with a practice address in California. 68% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 73% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 78% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endodontics providers in California

There are 1,018 endodontics records in California.

The 8 endodontics records with the nearest ZIP codes

  1. F. Mike Bardi, D.D.S.Torrance, CA 905051447382759
  2. Peter Endo, DDSTorrance, CA 905051083830673
  3. David Kelliny, BDS, DDSTorrance, CA 905051225435035
  4. Ray Kuwahara, D.D.S.Torrance, CA 905051740494525
  5. Timothy Kwon, D.D.S.Torrance, CA 905051740343441
  6. Sharon Kyomen, DDSTorrance, CA 905051598979387
  7. Todd Nakata, DDSTorrance, CA 905051053525857
  8. Ramin Noghreian, DDSTorrance, CA 905051043338056

Common questions

What is Darren Smolkin, DDS's NPI number?

Darren Smolkin, DDS's National Provider Identifier (NPI) is 1720154651, issued on Nov 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Darren Smolkin, DDS located?

The NPPES record lists a practice address at 23520 Crenshaw Blvd, Torrance, CA, 90505. Phone: (310) 539-7835. Providers update this record themselves, so call before visiting.

How can I verify Darren Smolkin, DDS's license?

NPPES lists California license number 45021, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Darren Smolkin, DDS prescribe under Medicare Part D?

In 2024, Darren Smolkin, DDS had 154 Medicare Part D claims for 84 beneficiaries; the average among endodontics prescribers was 121. 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.