Maggie Chen, MD
Nephrology Physician · San Jose, CA
Maggie Chen, MD is a nephrology physician with a practice address in San Jose, California, and NPI 1649470683, issued on Jul 18, 2007. Check the license (California A113157, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maggie Chen
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A113157 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2360 Mckee RD, San Jose, CA 95116
- Phone
- (408) 729-7128
- Enumerated
- Jul 18, 2007
- Record last updated
- Jun 20, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (408) 729-4125
- Medicare enrollment
- Enrolled (PECOS I20120706000525); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 2360 Mckee RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Wen-Tsang Ku, M.D.Nephrology Physician1710986161
- Wen Kuan, L.AC.Acupuncturist1104290576
- Aimee Pham, L.AC.Acupuncturist1215250014
- Maria Carmela Rosales, M.D.Nephrology Physician1780706762
Verify Maggie Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A113157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average nephrology physician in 2024
4,091 Medicare Part D claims for 395 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Losartan Potassium373 claims
- Amlodipine Besylate309 claims
- Allopurinol246 claims
- Farxiga244 claims
- Atorvastatin Calcium123 claims
- Metformin Hcl115 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): 99.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,060.58
46 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Maggie Chen among 1,468 nephrology physician records in California
Maggie Chen, 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
- Graduated2008 · median 2001 among the 1,128 with a school on file
- Record last updated2014 · 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.
All 1,468 in California → Every provider in San Jose → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Jeongwon Choi, M.D.San Jose, CA 951161902213820
- Rashid Elahi, M.D.San Jose, CA 951161790753408
- Ning Fu, M.D.San Jose, CA 951161124224571
- Wen-Tsang Ku, M.D.San Jose, CA 951161710986161
- Ian McCoy, M.D.San Jose, CA 951161437597747
- Grace No, MDSan Jose, CA 951161386865731
- Kajal Patel, M.D.San Jose, CA 951161366630444
- Reena Ranpuria, MDSan Jose, CA 951161518173608
Common questions
What is Maggie Chen, MD's NPI number?
Maggie Chen, MD's National Provider Identifier (NPI) is 1649470683, issued on Jul 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Maggie Chen, MD located?
The NPPES record lists a practice address at 2360 Mckee RD, San Jose, CA, 95116. Phone: (408) 729-7128. Providers update this record themselves, so call before visiting.
How can I verify Maggie Chen, MD's license?
NPPES lists California license number A113157, 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 Maggie Chen, MD prescribe under Medicare Part D?
In 2024, Maggie Chen, MD had 4,091 Medicare Part D claims for 395 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Maggie Chen, MD's MIPS final score?
The 2023 MIPS final score is 99.6 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.