NPPES file of Aug 9, 2026

Lewis Clayman, D.M.D., M.D.

Oral and Maxillofacial Surgery (Dentist) · Pinole, CA

Lewis Clayman, D.M.D., M.D. is an oral and maxillofacial surgery (dentist) with a practice address in Pinole, California, and NPI 1992799613, issued on Sep 8, 2005. Check the license 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
1992799613
Name
Lewis Clayman
Credential
D.M.D., M.D.
Primary taxonomy
Oral and Maxillofacial Surgery (Dentist) 1223S0112X
License number
049855 MI
Self-reported in NPPES; status is on the state search
Practice location
2150 Appian Way, Pinole, CA 94564
Phone
(510) 724-3922
Enumerated
Sep 8, 2005
Record last updated
Apr 12, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(510) 724-3922
Medicaid ID
103322652 MI
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 2150 Appian Way

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

  1. Jennie Byrd, M.D.Physical Medicine & Rehabilitation Physician1306891668
  2. Gary Gadwood, M.D.Surgery Physician1730245416
  3. Frayda GarfinkleMarriage & Family Therapist1063748291
  4. Brady Lyons, DMDOral and Maxillofacial Surgery (Dentist)1730256702
  5. Thomas Mampalam, M.D.Neurological Surgery Physician1619059854
  6. Barbara McCoy, R.N., PSY.DClinical Psychologist1609034602

Verify Lewis Clayman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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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40% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024

242 Medicare Part D claims for 120 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. 22 claims were for opioids.

  1. Lewis Clayman242
  2. Specialty average406

Most prescribed

  1. Chlorhexidine Gluconate101 claims
  2. Ibuprofen78 claims
  3. Amoxicillin15 claims
  4. Acetaminophen-Codeine13 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: $171.78

3 payments; by number, the most common kind was food and beverage; the largest payer was Zimvie 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. Lewis Clayman$171.78
  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.

Oral and Maxillofacial Surgery (Dentist) providers in California

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

Other oral and maxillofacial surgery (dentist) records in California

  1. Allan AbayevLoma Linda, CA1992649479
  2. Hooman Adamous, DMDBellflower, CA1497917439
  3. David Adams, DDSFresno, CA1831282755
  4. Arman Afifi, D.D.S., M.D.Cupertino, CA1528494598
  5. Payam Afzali, DDS, MDLos Angeles, CA1326350851
  6. Jacob Agatstein, D.M.D.Torrance, CA1932410842
  7. Jasmine Aghajani, DDSBeverly Hills, CA1871966622
  8. Virginia AgustinLa Puente, CA1376726315
  9. David Ahn, DMDSan Francisco, CA1265865216
  10. Junil Ahn, D.D.S.,M.D.Aliso Viejo, CA1992829949

Common questions

What is Lewis Clayman, D.M.D., M.D.'s NPI number?

Lewis Clayman, D.M.D., M.D.'s National Provider Identifier (NPI) is 1992799613, issued on Sep 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Lewis Clayman, D.M.D., M.D. located?

The NPPES record lists a practice address at 2150 Appian Way, Pinole, CA, 94564. Phone: (510) 724-3922. Providers update this record themselves, so call before visiting.

How can I verify Lewis Clayman, D.M.D., M.D.'s license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Lewis Clayman, D.M.D., M.D. prescribe under Medicare Part D?

In 2024, Lewis Clayman, D.M.D., M.D. had 242 Medicare Part D claims for 120 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.