NPPES file of Aug 9, 2026

Dennis Louis Yam, N.P

Gerontology Nurse Practitioner · Delano, CA

Dennis Louis Yam, N.P is a gerontology nurse practitioner with a practice address in Delano, California, and NPI 1689029662, issued on Apr 27, 2016. Check the license (California AG0316137, 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
1689029662
Name
Dennis Louis Yam
Credential
N.P
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
AG0316137 CA
Self-reported in NPPES; status is on the state search
Practice location
1230 Jefferson St, Delano, CA 93215
Phone
(661) 725-7793
Enumerated
Apr 27, 2016
Record last updated
Apr 27, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(661) 725-0595
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 1230 Jefferson St

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

  1. Ramy Alnahhal, M.D.Internal Medicine Physician1457599185
  2. Radhey Bansal, MDInternal Medicine Physician1760457659
  3. Anna Mendoza, M.D.Family Medicine Physician1699742510
  4. John Nunez, PA-CPhysician Assistant1780743559
  5. Vijaykumar Patel, M.D.Internal Medicine Physician1043223431

Verify Dennis Louis Yam 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 AG0316137    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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44% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

767 Medicare Part D claims for 107 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Dennis Yam767
  2. Specialty average1,369

Most prescribed

  1. Atorvastatin Calcium58 claims
  2. Levothyroxine Sodium46 claims
  3. Amlodipine Besylate40 claims
  4. Lisinopril32 claims
  5. Metformin Hcl31 claims
  6. Hydrochlorothiazide27 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: $143.53

2 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 3,903 providers of this specialty with any payment received $742.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dennis Yam$143.53
  2. Specialty average$742.05

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

Gerontology Nurse Practitioner providers in California

There are 569 gerontology nurse practitioner records in California.

All 569 in California → Every provider in Delano →

Other gerontology nurse practitioner records in California

  1. Chelsea Abad, CRNP, AGPCNP - BCDuarte, CA1952848137
  2. Abigail Abar-Calica, N.P.Menlo Park, CA1639330269
  3. Maribeth Abedi, NURSE PRACTITIONERModesto, CA1992330625
  4. Michelle Abrams, NPThousand Oaks, CA1780154187
  5. Roman Emmanuel AcebedoCarson, CA1649102609
  6. Paritosh Acharya, NPSacramento, CA1992511943
  7. Lisa Adamek, NPRoseville, CA1134103625
  8. Piunik AghajaniBeverly Hills, CA1467382366
  9. Alice Ahn, NPDuarte, CA1790151405
  10. Angelica Ahonen, DNP, APRNSanta Ana, CA1427974450

Common questions

What is Dennis Louis Yam, N.P's NPI number?

Dennis Louis Yam, N.P's National Provider Identifier (NPI) is 1689029662, issued on Apr 27, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Dennis Louis Yam, N.P located?

The NPPES record lists a practice address at 1230 Jefferson St, Delano, CA, 93215. Phone: (661) 725-7793. Providers update this record themselves, so call before visiting.

How can I verify Dennis Louis Yam, N.P's license?

NPPES lists California license number AG0316137, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Dennis Louis Yam, N.P prescribe under Medicare Part D?

In 2024, Dennis Louis Yam, N.P had 767 Medicare Part D claims for 107 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.