NPPES file of Aug 9, 2026

Alex Rader, D.D.S.

General Practice Dentistry · Walnut Creek, CA

Alex Rader, D.D.S. is a general practice dentistry with a practice address in Walnut Creek, California, and NPI 1982015517, issued on May 16, 2014. Check the license (California 45402, 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
1982015517
Name
Alex Rader
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
45402 CA
Self-reported in NPPES; status is on the state search
Practice location
1855 San Miguel Dr, Walnut Creek, CA 94596
Phone
(925) 932-1855
Enumerated
May 16, 2014
Record last updated
May 16, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(925) 932-9525
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 1855 San Miguel Dr

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

  1. Bret Annoni, D.D.S.General Practice Dentistry1982651295
  2. Bobby Aycock, M.D.Plastic Surgery Physician1063567873
  3. Joseph Barakeh, DO PHDOphthalmology Physician1013990613
  4. Michael Carpentier, D.D.S.General Practice Dentistry1568558476
  5. Mark Drucker, MDOphthalmology Physician1699753046
  6. Howard Friedman, PH.D.Clinical Neuropsychologist1578789780

Verify Alex Rader 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 45402
    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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7% fewer Medicare Part D claims than the average general practice dentistry in 2024

77 Medicare Part D claims for 35 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Alex Rader77
  2. Specialty average83

Most prescribed

  1. Chlorhexidine Gluconate26 claims
  2. Amoxicillin22 claims
  3. Azithromycin14 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: $663.81

6 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alex Rader$663.81
  2. Specialty average$597.01

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

Alex Rader among 17,852 general practice dentistry records in California

Alex Rader, D.D.S. is one of 17,852 general practice dentistry records with a practice address in California. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.

  • NPI issued2014 · 76% of these records are older, 22% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2014 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

71 general practice dentistry records list a practice address in Walnut Creek

They are 71 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Bret Annoni, D.D.S.Walnut Creek, CA 945961982651295
  2. Timothy Callahan, DDSWalnut Creek, CA 945961275633836
  3. Michael Carpentier, D.D.S.Walnut Creek, CA 945961568558476
  4. Maryam Doroudian, DDSWalnut Creek, CA 945961821018722
  5. Tsui Wai Eng, D.D.S.Walnut Creek, CA 945961245240845
  6. Grace-Mary Hume, D.D.S.Walnut Creek, CA 945961871689786
  7. Dwight Loder, DDSWalnut Creek, CA 945961538287784
  8. Mark Maher, DDSWalnut Creek, CA 945961306823539

Common questions

What is Alex Rader, D.D.S.'s NPI number?

Alex Rader, D.D.S.'s National Provider Identifier (NPI) is 1982015517, issued on May 16, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Alex Rader, D.D.S. located?

The NPPES record lists a practice address at 1855 San Miguel Dr, Walnut Creek, CA, 94596. Phone: (925) 932-1855. Providers update this record themselves, so call before visiting.

How can I verify Alex Rader, D.D.S.'s license?

NPPES lists California license number 45402, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Alex Rader, D.D.S. prescribe under Medicare Part D?

In 2024, Alex Rader, D.D.S. had 77 Medicare Part D claims for 35 beneficiaries; the average among general practice dentistry prescribers was 83. 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.