NPPES file of Aug 9, 2026

Jiann-Gang Frank Luo, MD

Nephrology Physician · San Jose, CA

Jiann-Gang Frank Luo, MD is a nephrology physician with a practice address in San Jose, California, and NPI 1043403066, issued on Aug 22, 2007. Check the license (California A94497, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043403066
Name
Jiann-Gang Frank Luo
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A94497 CA
Self-reported in NPPES; status is on the state search
Practice location
2220 Moorpark Ave, San Jose, CA 95128
Phone
(215) 266-5670
Enumerated
Aug 22, 2007
Record last updated
Nov 29, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(408) 885-5741
Medicare enrollment
Enrolled (PECOS I20090706000531); 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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Also registered at 2220 Moorpark Ave

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

  1. Leticia Cabello, PHARMDPharmacotherapy Pharmacist1144500257
  2. Elena Caviar, MS, RDRenal Nutrition Registered Dietitian1588904809
  3. Cynthia Delabahan, RDRenal Nutrition Registered Dietitian1558603662
  4. Wei-Chen Feng, MS, RDRenal Nutrition Registered Dietitian1508106717
  5. Catherine Hill, PHARMDPharmacist1124309380
  6. Marycarmel King, MSWSocial Worker1336647775

Verify Jiann-Gang Frank Luo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A94497
    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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7% fewer Medicare Part D claims than the average nephrology physician in 2024

1,361 Medicare Part D claims for 182 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Jiann-Gang Luo1,361
  2. Specialty average1,465

Most prescribed

  1. Furosemide178 claims
  2. Losartan Potassium115 claims
  3. Calcium Acetate74 claims
  4. Jardiance72 claims
  5. Sevelamer Carbonate71 claims
  6. Nifedipine Er62 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 practice group's MIPS final score for 2023 (Medicare payment program): 80.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score67.4
  2. Costout of 100 · 30%46.5
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. County OF Santa ClaraSan Jose, CA

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

Jiann-Gang Frank Luo among 1,468 nephrology physician records in California

Jiann-Gang Frank Luo, MD 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 2007, is newer than 52% of them.

  • NPI issued2007 · 52% of these records are older, 35% 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 updated2010 · 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).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Alexander Doan, MDSan Jose, CA 951281003859661
  2. Lewis Haut, MDSan Jose, CA 951281760490510
  3. June Lugovoy, MDSan Jose, CA 951281508822248
  4. Nicholas MonacoSan Jose, CA 951281457404816
  5. Nhat Pham, MDSan Jose, CA 951281568408763
  6. Anjali Saxena, MDSan Jose, CA 951281164527826
  7. Addy Squarer, MDSan Jose, CA 951281679581425
  8. Phillip Tse, M.D.San Jose, CA 951281184732901

Common questions

What is Jiann-Gang Frank Luo, MD's NPI number?

Jiann-Gang Frank Luo, MD's National Provider Identifier (NPI) is 1043403066, issued on Aug 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jiann-Gang Frank Luo, MD located?

The NPPES record lists a practice address at 2220 Moorpark Ave, San Jose, CA, 95128. Phone: (215) 266-5670. Providers update this record themselves, so call before visiting.

How can I verify Jiann-Gang Frank Luo, MD's license?

NPPES lists California license number A94497, 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 Jiann-Gang Frank Luo, MD prescribe under Medicare Part D?

In 2024, Jiann-Gang Frank Luo, MD had 1,361 Medicare Part D claims for 182 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Jiann-Gang Frank Luo, MD's MIPS final score?

The 2023 MIPS final score is 80.6 of 100, reported for the practice group. 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.