NPPES file of Aug 9, 2026

Klemens Nguyen Huynh, M.D.

Nephrology Physician · Highland, CA

Klemens Nguyen Huynh, M.D. is a nephrology physician with a practice address in Highland, California, and NPI 1184652935, issued on Jun 29, 2006. Check the license (California A69249, as entered in NPPES) on the Medical Board of California; 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
1184652935
Name
Klemens Nguyen Huynh
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A69249 CA
Self-reported in NPPES; status is on the state search
Practice location
7223 Church St, Highland, CA 92346
Phone
(909) 882-0702
Enumerated
Jun 29, 2006
Record last updated
Oct 23, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(909) 886-6704
Medicare enrollment
Enrolled (PECOS I20040623000754); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1997
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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Also registered at 7223 Church St

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

  1. Linda Doherty, PAPhysician Assistant1073724803
  2. Lailae Furutan, MDInternal Medicine Physician1912952771
  3. Hiep Le, M.D.Nephrology Physician1457393308
  4. Hung Nguyen, DOFamily Medicine Physician1588688832
  5. Hai Phan, MDNephrology Physician1104817840
  6. Roland Rodriguez, D.C.Chiropractor1780911081

Verify Klemens Nguyen Huynh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A69249
    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
Open 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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9% fewer Medicare Part D claims than the average nephrology physician in 2024

1,339 Medicare Part D claims for 184 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Klemens Huynh1,339
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium212 claims
  2. Farxiga145 claims
  3. Calcitriol118 claims
  4. Chlorthalidone90 claims
  5. Kerendia81 claims
  6. Nifedipine Er72 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: $2,847.76

82 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Klemens Huynh$2,847.76
  2. Specialty average$3,091.37

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

Bills Medicare through one group practice

  1. Nephrology Associates Medical Group IncRiverside, CA

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

Klemens Nguyen Huynh among 1,468 nephrology physician records in California

Klemens Nguyen Huynh, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1997 · median 2001 among the 1,128 with a school on file
  • Record last updated2012 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 nephrology physician records list a practice address in Highland

They are 8 of the 399 NPPES records with a practice address in Highland, and 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Hatem Ali, M.D.Highland, CA 923461821259466
  2. Mark Asef, M.D.Highland, CA 923461225561673
  3. Hiep Le, M.D.Highland, CA 923461457393308
  4. Oliver Le, MDHighland, CA 923461457746026
  5. Hai Phan, MDHighland, CA 923461104817840
  6. Edward Serros, MDHighland, CA 923461386665024
  7. Hoa Vu, MDHighland, CA 923461528041092
  8. Sunil Jain, MBBS, MDLoma Linda, CA 923501477750602

Common questions

What is Klemens Nguyen Huynh, M.D.'s NPI number?

Klemens Nguyen Huynh, M.D.'s National Provider Identifier (NPI) is 1184652935, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Klemens Nguyen Huynh, M.D. located?

The NPPES record lists a practice address at 7223 Church St, Highland, CA, 92346. Phone: (909) 882-0702. Providers update this record themselves, so call before visiting.

How can I verify Klemens Nguyen Huynh, M.D.'s license?

NPPES lists California license number A69249, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Klemens Nguyen Huynh, M.D. prescribe under Medicare Part D?

In 2024, Klemens Nguyen Huynh, M.D. had 1,339 Medicare Part D claims for 184 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.