NPPES file of Aug 9, 2026

Lenny Deguzman, APN

Gerontology Nurse Practitioner · Arlington Heights, IL

Lenny Deguzman, APN is a gerontology nurse practitioner with a practice address in Arlington Heights, Illinois, and NPI 1285240473, issued on Sep 22, 2020. Check the license (Illinois 209-021895, as entered in NPPES) with the Illinois 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285240473
Name
Lenny Deguzman
Credential
APN
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
209-021895 IL
Self-reported in NPPES; status is on the state search
Practice location
800 W Central RD, Arlington Heights, IL 60005
Phone
(847) 618-5075
Enumerated
Sep 22, 2020
Record last updated
Sep 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(847) 618-3259
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 800 W Central RD

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

  1. Fiaz Ahmed, MDAnesthesiology Physician1407924251
  2. Syed Ahmed, MDAnesthesiology Physician1124187257
  3. Catherine Ahn, MDAnesthesiology Physician1245308022
  4. Juli AistarsOncology Clinical Nurse Specialist1861883209
  5. A Akbar, M.D.Anesthesiology Physician1144203282
  6. Ayham Alagha, M.D.Hospitalist Physician1851779151

Verify Lenny Deguzman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209-021895
    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 Illinois license search

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51% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

677 Medicare Part D claims for 126 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 92 claims were for opioids.

  1. Lenny Deguzman677
  2. Specialty average1,369

Most prescribed

  1. Warfarin Sodium81 claims
  2. Tramadol Hcl41 claims
  3. Clobazam40 claims
  4. Levothyroxine Sodium30 claims
  5. Potassium Chloride30 claims
  6. Hydrocodone-Acetaminophen25 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.

The MIPS final score for 2023 (Medicare payment program): 89.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score79.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Lenny Deguzman among 292 gerontology nurse practitioner records in Illinois

Lenny Deguzman, APN is one of 292 gerontology nurse practitioner records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 52% of them.

  • NPI issued2020 · 52% of these records are older, 42% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2021 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Illinois

There are 292 gerontology nurse practitioner records in Illinois.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Kristin Ryan, APNArlington Heights, IL 600051972042521
  2. Julie Kollins, APNArlington Heights, IL 600041689157737
  3. Rafie Davidov, A.P.N.-C.N.P.Elk Grove Village, IL 600071649712373
  4. Constance Lokos, ADVANCE PRACTICE NURElk Grove Village, IL 600071952323693
  5. Marcin GalicaDes Plaines, IL 600161952970006
  6. Enkhtuya GelegdorjDes Plaines, IL 600161265246144
  7. Denise Tener, AGPCNP-BCDes Plaines, IL 600161376086074
  8. Rahmana Aziz Smith, AGACNP-BC, NPDes Plaines, IL 600191346824620

Common questions

What is Lenny Deguzman, APN's NPI number?

Lenny Deguzman, APN's National Provider Identifier (NPI) is 1285240473, issued on Sep 22, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Lenny Deguzman, APN located?

The NPPES record lists a practice address at 800 W Central RD, Arlington Heights, IL, 60005. Phone: (847) 618-5075. Providers update this record themselves, so call before visiting.

How can I verify Lenny Deguzman, APN's license?

NPPES lists Illinois license number 209-021895, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Lenny Deguzman, APN prescribe under Medicare Part D?

In 2024, Lenny Deguzman, APN had 677 Medicare Part D claims for 126 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions only.

What is Lenny Deguzman, APN's MIPS final score?

The 2023 MIPS final score is 89.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.