NPPES file of Aug 9, 2026

Clarence Ly, NP

Nurse Practitioner · Upland, CA

Clarence Ly, NP is a nurse practitioner with a practice address in Upland, California, and NPI 1356154595, issued on Jan 30, 2025. Check the license (California NP95031960, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356154595
Name
Clarence Ly
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
NP95031960 CA
Self-reported in NPPES; status is on the state search
Practice location
914 W Foothill Blvd Ste B, Upland, CA 91786
Phone
(909) 982-8944
Enumerated
Jan 30, 2025
Record last updated
Mar 13, 2025
Fax
(909) 985-0932
Medicare enrollment
Enrolled (PECOS I20250217001064); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →

Verify Clarence Ly 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 NP95031960    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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Bills Medicare through one group practice

  1. Mukesh Amin MD And Tejinder Singh MD IncUpland, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Clarence Ly among 8,223 nurse practitioner records in California

Clarence Ly, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 93% of them.

  • NPI issued2025 · 93% of these records are older, 3% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2024 · median 2017 among the 3,425 with a school on file
  • Record last updated2025 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

25 nurse practitioner records list a practice address in Upland

They are 25 of the 1,846 NPPES records with a practice address in Upland, and 8,223 nurse practitioner records in California.

All 8,223 in California → Every provider in Upland → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Gay Beseth, NPUpland, CA 917861346398286
  2. Cheryl Bock, NPUpland, CA 917861518980374
  3. Jody Bouma, N.P.Upland, CA 917861841425279
  4. Victor Campos, FNPUpland, CA 917861710034350
  5. Marie Carin-Parkes, NPUpland, CA 917861962687277
  6. David Frandsen, NPUpland, CA 917861710900584
  7. Chonn Gonzales, RNPUpland, CA 917861558483107
  8. Stephanie Jenniches, NPUpland, CA 917861114940988

Common questions

What is Clarence Ly, NP's NPI number?

Clarence Ly, NP's National Provider Identifier (NPI) is 1356154595, issued on Jan 30, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Clarence Ly, NP located?

The NPPES record lists a practice address at 914 W Foothill Blvd Ste B, Upland, CA, 91786. Phone: (909) 982-8944. Providers update this record themselves, so call before visiting.

How can I verify Clarence Ly, NP's license?

NPPES lists California license number NP95031960, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.