Hector Santiesteban, MEDICAL DOCTOR
NPI 1245235738 · Nephrology Physician · Daly City, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hector Santiesteban, MEDICAL DOCTOR is a Nephrology Physician provider in Daly City, CA (NPI 1245235738).
Provider details
- NPI number
- 1245235738
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MEDICAL DOCTOR
- Sex
- Male
- Sole proprietor
- No
- License
- G60085 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
343 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 97 | $132 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 88 | $400 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 76 | $87 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 59 | $192 |
| Hemodialysis Procedure With Physician Evaluation90935 | 23 | $78 |
Typical Medicare-allowed amounts for these services range $78–$400 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 36 | 17 |
| Metoprolol Tartrate | 33 | — |
| Torsemide | 32 | — |
| Lisinopril | 29 | — |
| Cinacalcet Hcl | 26 | — |
| Amlodipine Besylate | 25 | 13 |
| Levothyroxine Sodium | 25 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$59 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-20
- Last updated
- 2025-03-13
- Certified
- 2025-03-13
Frequently asked questions
- What is Hector Santiesteban's NPI number?
- Hector Santiesteban's National Provider Identifier (NPI) is 1245235738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hector Santiesteban's specialty?
- Hector Santiesteban is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Hector Santiesteban located?
- Hector Santiesteban's practice location on file with NPPES is 1800 Sullivan Ave Rm 507, Daly City, CA 94015-2225.
- What is Hector Santiesteban's phone number?
- The practice phone number listed in the NPPES registry for Hector Santiesteban is (650) 472-9667.
- Does Hector Santiesteban accept Medicare?
- Hector Santiesteban is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hector Santiesteban's NPI active?
- Yes — Hector Santiesteban's NPI (1245235738) is active in the NPPES registry as of the last update on 2025-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.