NPPES file of Aug 9, 2026

Hector Luis Santiesteban, MEDICAL DOCTOR

Nephrology Physician · Daly City, CA

Hector Luis Santiesteban, MEDICAL DOCTOR is a nephrology physician with a practice address in Daly City, California, and NPI 1245235738, issued on Jun 20, 2005. Check the license (California G60085, 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
1245235738
Name
Hector Luis Santiesteban
Credential
MEDICAL DOCTOR
Primary taxonomy
Nephrology Physician 207RN0300X
License number
G60085 CA
Self-reported in NPPES; status is on the state search
Practice location
1800 Sullivan Ave RM 507, Daly City, CA 94015
Phone
(650) 472-9667
Enumerated
Jun 20, 2005
Record last updated
Mar 13, 2025
Fax
(650) 745-7250
Medicare enrollment
Enrolled (PECOS I20050801001166); accepts Medicare assignment
Medical or professional school
Emory University School Of Medicine, 1984
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 1800 Sullivan Ave RM 507

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

  1. Gerald Sydorak, M.D.Vascular Surgery Physician1619019312

Verify Hector Luis Santiesteban in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G60085
    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

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52% fewer Medicare Part D claims than the average nephrology physician in 2024

710 Medicare Part D claims for 128 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Hector Santiesteban710
  2. Specialty average1,465

Most prescribed

  1. Atorvastatin Calcium36 claims
  2. Metoprolol Tartrate33 claims
  3. Torsemide32 claims
  4. Lisinopril29 claims
  5. Cinacalcet Hcl26 claims
  6. Amlodipine Besylate25 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: $58.56

2 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. 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. Hector Santiesteban$58.56
  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 2 group practices

  1. County OF San MateoSan Mateo, CA
  2. San Mateo Dialysis AssociatesBurlingame, CA

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

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

Other nephrology physician records in California

  1. Antoine Abcar, MDLos Angeles, CA1245301159
  2. Basmah Abdalla, M.D.Los Angeles, CA1629394002
  3. Omaran Abdeen, M.D.Mission Hills, CA1700878410
  4. Joseph Abdelmalek, M.DSan Diego, CA1740485531
  5. Lama Abdelnour, MDLos Angeles, CA1477817542
  6. Amir Abdi Pour, MDLoma Linda, CA1912187477
  7. Anas Abou-Ismail, MDPalm Springs, CA1598078784
  8. Graham Abra, M.D.Stanford, CA1760644678
  9. Sreedhar Adapa, M.D.Visalia, CA1881997872
  10. Gbemisola Adenuga, M.D.Los Angeles, CA1952464661

Common questions

What is Hector Luis Santiesteban, MEDICAL DOCTOR's NPI number?

Hector Luis Santiesteban, MEDICAL DOCTOR's National Provider Identifier (NPI) is 1245235738, issued on Jun 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Hector Luis Santiesteban, MEDICAL DOCTOR located?

The NPPES record lists a practice address at 1800 Sullivan Ave RM 507, Daly City, CA, 94015. Phone: (650) 472-9667. Providers update this record themselves, so call before visiting.

How can I verify Hector Luis Santiesteban, MEDICAL DOCTOR's license?

NPPES lists California license number G60085, 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 Hector Luis Santiesteban, MEDICAL DOCTOR prescribe under Medicare Part D?

In 2024, Hector Luis Santiesteban, MEDICAL DOCTOR had 710 Medicare Part D claims for 128 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.