Julia W. Tzeng, M.D.
Pediatric Nephrology Physician · Madera, CA
Julia W. Tzeng, M.D. is a pediatric nephrology physician with a practice address in Madera, California, and NPI 1912106634, issued on Jul 12, 2007. Check the license (California A106697, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Julia W. Tzeng
- Credential
- M.D.
- Primary taxonomy
- Pediatric Nephrology Physician 2080P0210X
- License number
- A106697 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9300 Valley Childrens PL, Madera, CA 93636
- Phone
- (559) 353-3000
- Enumerated
- Jul 12, 2007
- Record last updated
- Apr 13, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 1912106634 CA
- Medicare enrollment
- Enrolled (PECOS I20130808000125); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest pediatric nephrology physician records → All 116 in California → Look up another NPI →
Also registered at 9300 Valley Childrens PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Isra AbugrounPediatric Endocrinology Physician1437576436
- Nohemi AcunaSocial Worker1407408263
- Jillian AdneyDental Assistant1124584115
- Neha Ahuja, M.D.Pediatric Gastroenterology Physician1750728358
- Sayeh AkhavanStudent in an Organized Health Care Education/Training Program1487340154
- Nikita Akkala, DO, MSStudent in an Organized Health Care Education/Training Program1093506057
Verify Julia W. Tzeng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A106697Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average pediatric nephrology physician in 2024
20 Medicare Part D claims, against an average of 67 among the 387 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $19.89
1 payment: food and beverage; the largest payer was Kyowa Kirin, Inc. The 297 providers of this specialty with any payment received $3,704.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Valley Childrens Medical GroupModesto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Julia W. Tzeng among 116 pediatric nephrology physician records in California
Julia W. Tzeng, M.D. is one of 116 pediatric nephrology physician records with a practice address in California. 68% 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 43% of them.
- NPI issued2007 · 43% of these records are older, 43% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2007 · median 2007 among the 61 with a school on file
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0210X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Nephrology Physician providers in California
There are 116 pediatric nephrology physician records in California.
All 116 in California → Every provider in Madera → Pediatric Nephrology Physician nationwide →
The 8 pediatric nephrology physician records with the nearest ZIP codes
- Laide Jinadu, M.D.Madera, CA 936361063695799
- Syed Kamal, M.D.Madera, CA 936361346292836
- Nianzhou Xiao, M.D.Madera, CA 936361659504959
- Lyndon Senar, M.D., INC.Bakersfield, CA 933011275556672
- Alexandra BickiSan Francisco, CA 941431982139291
- Onur Cil, MD, PHDSan Francisco, CA 941431851741540
- Kristen Favel, MD, MPH, FRCPCSan Francisco, CA 941431619674504
- Alaa Hamed, MDSan Francisco, CA 941431518527290
Common questions
What is Julia W. Tzeng, M.D.'s NPI number?
Julia W. Tzeng, M.D.'s National Provider Identifier (NPI) is 1912106634, issued on Jul 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Julia W. Tzeng, M.D. located?
The NPPES record lists a practice address at 9300 Valley Childrens PL, Madera, CA, 93636. Phone: (559) 353-3000. Providers update this record themselves, so call before visiting.
How can I verify Julia W. Tzeng, M.D.'s license?
NPPES lists California license number A106697, 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 Julia W. Tzeng, M.D. prescribe under Medicare Part D?
In 2024, Julia W. Tzeng, M.D. had 20 Medicare Part D claims; the average among pediatric nephrology physician prescribers was 67. 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.