NPPES file of Aug 9, 2026

Alexander D. Doan, MD

Nephrology Physician · San Jose, CA

Alexander D. Doan, MD is a nephrology physician with a practice address in San Jose, California, and NPI 1003859661, issued on Jun 13, 2006. Check the license (California A62476, 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
1003859661
Name
Alexander D. Doan
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A62476 CA
Self-reported in NPPES; status is on the state search
Practice location
105 N Bascom Ave, San Jose, CA 95128
Phone
(408) 998-2890
Enumerated
Jun 13, 2006
Record last updated
Aug 2, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(408) 998-2897
Medicare enrollment
Enrolled (PECOS I20050224001034); 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 105 N Bascom Ave

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

  1. Doylene Chan, PH.D.Counseling Psychologist1881977502
  2. Paul Cipriano, M.D.Vascular & Interventional Radiology Physician1669486700
  3. Visakha Goonewardena, M.DInternal Medicine Physician1326145673
  4. Olivia Hsia, M.D.Family Medicine Physician1518092857
  5. Sung-Eun Lim, DMDProsthodontics1891865192
  6. Maryam Malekian, MS, RDRegistered Dietitian1679811202

Verify Alexander D. Doan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A62476
    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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4.6 times the Medicare Part D claims of the average nephrology physician in 2024

6,802 Medicare Part D claims for 509 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims. 111 claims were for opioids.

  1. Alexander Doan6,802
  2. Specialty average1,465

Most prescribed

  1. Kerendia344 claims
  2. Amlodipine Besylate292 claims
  3. Atorvastatin Calcium259 claims
  4. Furosemide240 claims
  5. Farxiga234 claims
  6. Valsartan210 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): 83.6 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 score83.8
  2. Costout of 100 · 30%61.5
  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).

Industry payments in 2024: $4,845.55

189 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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. Alexander Doan$4,845.55
  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. EL Camino Health Medical Network LLCLos Gatos, CA

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

Alexander D. Doan among 1,468 nephrology physician records in California

Alexander D. Doan, 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 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
  • Graduated1995 · 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).

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. Lewis Haut, MDSan Jose, CA 951281760490510
  2. June Lugovoy, MDSan Jose, CA 951281508822248
  3. Jiann-Gang Luo, MDSan Jose, CA 951281043403066
  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 Alexander D. Doan, MD's NPI number?

Alexander D. Doan, MD's National Provider Identifier (NPI) is 1003859661, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alexander D. Doan, MD located?

The NPPES record lists a practice address at 105 N Bascom Ave, San Jose, CA, 95128. Phone: (408) 998-2890. Providers update this record themselves, so call before visiting.

How can I verify Alexander D. Doan, MD's license?

NPPES lists California license number A62476, 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 Alexander D. Doan, MD prescribe under Medicare Part D?

In 2024, Alexander D. Doan, MD had 6,802 Medicare Part D claims for 509 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Alexander D. Doan, MD's MIPS final score?

The 2023 MIPS final score is 83.6 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.