Dr. Sandra Gabriela Carias Zuniga, MD

  • South San Francisco, CA
  • Nephrologist
NPI1114378940PAC ID3072808484
Medicare services, 2024
1,343
Medicare patients, 2024
399
Part D claims, 2024
1,430
MIPS score, 2024
99
Hospital affiliations
3
Practice address
1200 El Camino Real, South San Francisco, CA 94080
Practice phone
Call (650) 742-3200
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Kaiser Permanente South San Francisco Medical Center

Hospital · South San Francisco, California

See all 7 affiliations

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Dr. Sandra Gabriela Carias Zuniga is a nephrologist in South San Francisco, California

Dr. Carias Zuniga practices at Kaiser Permanente South San Francisco Medical Center in South San Francisco, California, part of Kaiser Permanente.

Dr. Carias Zuniga's NPI, 1114378940, was assigned on June 22, 2016. Dr. Carias Zuniga holds North Carolina license 2020-03838.

NPI and contact details
Medicare PAC ID
3072808484
NPI enumeration date
June 22, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(650) 742-3200
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Sandra Gabriela Carias Zuniga practices at Kaiser Permanente South San Francisco Medical Center in South San Francisco, California

Dr. Carias Zuniga's primary practice is Kaiser Permanente South San Francisco Medical Center, at 1200 El Camino Real, South San Francisco, CA 94080 in San Mateo County. The practice phone is (650) 742-3200.

Source: Dmand AI Affiliation Data

Dr. Sandra Gabriela Carias Zuniga is affiliated with 5 sites of care and 2 medical groups

Dr. Carias Zuniga's primary practice is Kaiser Permanente South San Francisco Medical Center in South San Francisco, California, part of Kaiser Permanente. Dr. Carias Zuniga is also affiliated with San Leandro Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Carias Zuniga to 1 more hospital, 1 dialysis center, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Carias Zuniga

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Sandra Gabriela Carias Zuniga's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Carias Zuniga practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kaiser Permanente South San Francisco Medical CenterAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Sandra Gabriela Carias Zuniga is one of 1,401 nephrologists in California

Nephrology is Dr. Carias Zuniga's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Carias Zuniga is licensed in North Carolina.

Specialties and state licenses

  • Nephrology, North CarolinaPrimaryLicense 2020-03838 · taxonomy 207RN0300X

Nephrologists near Dr. Carias Zuniga

Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Sandra Gabriela Carias Zuniga billed Medicare for 1,343 services in 2024

CMS data shows 1,343 Medicare services from Dr. Carias Zuniga across 8 procedure codes in 2024, for 399 Medicare patients. Medicare paid $112,764 for them.

Medicare services, 20241,343
Medicare patients399
Paid by Medicare$112,764
Procedure codes8

Dr. Carias Zuniga's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,6442024: 91344%
Other services
2023: 02024: 264
Tests and treatments
2023: 5362024: 16669%

Where Dr. Carias Zuniga's Medicare services took place, 2024

  • In an office1,01275%
  • In a facility33125%

Dr. Carias Zuniga compared with the California median for nephrologists, 2024

  • Dr. Carias Zuniga
  • California median
Medicare services
1,343vs 1,08424% above
Medicare patients
399vs 30730% above
Part D claims
1,212vs 95527% above

Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.

Dr. Carias Zuniga's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Carias Zuniga

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Carias Zuniga and other nephrologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Sandra Gabriela Carias Zuniga treated 399 Medicare patients in 2024, average age 75

CMS counts 399 Medicare patients who saw Dr. Carias Zuniga in 2024. The largest group is 75 to 84, with 176 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 21% are also on Medicaid. Their average risk score is 3.06, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Carias Zuniga's median patient age at 64, with 39% women.

Medicare patients, 2024399
Average age75
Average risk score3.06
Also on Medicaid21%

Dr. Carias Zuniga's Medicare patients by age, 2024

Dr. Carias Zuniga's Medicare patients by sex, 2024

  • Women22857%
  • Men17143%

Chronic conditions among Dr. Carias Zuniga's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes61%
  5. Arthritis42%
  6. Ischemic heart disease39%
  7. Heart failure38%
  8. Mood disorders34%

Share of Medicare patients with each condition. A patient can have several.

Dr. Carias Zuniga's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women39%
  • Men61%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Sandra Gabriela Carias Zuniga wrote 1,430 Medicare Part D claims in 2024

In 2024, Dr. Carias Zuniga wrote 1,430 Medicare Part D claims for 285 patients. 88% of them were for generic drugs. CMS names the drug for 1,212 of them, across 25 drugs with 11 or more claims each, at $91,206 in total drug cost. In 2023, CMS named 1,165 claims across 27 drugs.

Part D claims, 20241,430
Drugs named by CMS25
Total drug cost$91,206
Part D patients285

Dr. Carias Zuniga's Part D claims by kind of drug, 2024

  • Generic1,264 claims88%
  • Brand-name166 claims12%

Dr. Carias Zuniga's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Carias Zuniga's Part D claims, 2024

  • Antibiotics2%32 of 1,430 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,1652024: 1,2124%

Drugs named by CMS: 25 in 2024, 27 in 2023.

See all prescribing by Dr. Carias Zuniga

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Sandra Gabriela Carias Zuniga scored 99 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Carias Zuniga for performance year 2024, reported as part of a group. Dr. Carias Zuniga accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Carias Zuniga's MIPS scores, performance year 2024

  • 99of 100Final score
  • 91.9of 100Quality
  • 40of 100Improvement Activities
  • 82of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Sandra Gabriela Carias Zuniga received $3,012 in industry payments from 2021 to 2024

CMS Open Payments shows 135 general payments to Dr. Carias Zuniga from 22 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 98% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,000.

General payments to Dr. Carias Zuniga by program year, 2021 to 2024

General payments to Dr. Carias Zuniga by kind, 2021 to 2024

$3Kin total
  • Food and beverage$2,95598%
  • Education$582%

Companies that paid Dr. Carias Zuniga the most, 2021 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Carias Zuniga

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Sandra Gabriela Carias Zuniga's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Sandra Gabriela Carias Zuniga

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Sandra Gabriela Carias Zuniga's NPI number?

Dr. Sandra Gabriela Carias Zuniga's NPI number is 1114378940. It was assigned on June 22, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Sandra Gabriela Carias Zuniga?

Dr. Sandra Gabriela Carias Zuniga is a nephrologist in South San Francisco, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Sandra Gabriela Carias Zuniga practice?

Dr. Carias Zuniga practices at 1200 El Camino Real, South San Francisco, CA 94080. Dr. Carias Zuniga's primary practice is Kaiser Permanente South San Francisco Medical Center in South San Francisco, California, part of Kaiser Permanente. Dmand AI also links Dr. Carias Zuniga to 1 hospital, 1 dialysis center, 1 group practice or clinic and 1 medical group.

What is Dr. Sandra Gabriela Carias Zuniga's office phone number?

The practice phone on file for Dr. Carias Zuniga is (650) 742-3200.

What is Dr. Sandra Gabriela Carias Zuniga's medical license number?

Dr. Carias Zuniga holds North Carolina license 2020-03838.

Which hospitals is Dr. Sandra Gabriela Carias Zuniga affiliated with?

Dr. Carias Zuniga practices at Kaiser Permanente South San Francisco Medical Center in South San Francisco, California. Dr. Carias Zuniga is also affiliated with San Leandro Medical Center. Dmand AI links Dr. Carias Zuniga to 1 more hospital.

What medical group is Dr. Sandra Gabriela Carias Zuniga part of?

Dr. Carias Zuniga is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Carias Zuniga to 1 more medical group.

Does Dr. Sandra Gabriela Carias Zuniga accept Medicare?

Yes. CMS data shows Dr. Carias Zuniga billed Medicare for 1,343 services in 2024, and Dr. Carias Zuniga accepts Medicare assignment.

What is Dr. Sandra Gabriela Carias Zuniga's MIPS score?

Dr. Carias Zuniga's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.

How many Medicare patients does Dr. Sandra Gabriela Carias Zuniga see?

CMS counts 399 Medicare patients who saw Dr. Carias Zuniga in 2024, with an average age of 75.

Show 4 more questionsShow fewer questions

What services does Dr. Sandra Gabriela Carias Zuniga bill to Medicare?

In 2024, Dr. Carias Zuniga's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99232) and medicare service (G2211).

What drugs does Dr. Sandra Gabriela Carias Zuniga prescribe most?

In 2024 Medicare Part D data, Dr. Carias Zuniga's most prescribed drugs by claims were Losartan Potassium, Amlodipine Besylate and Lisinopril.

Has Dr. Sandra Gabriela Carias Zuniga received payments from drug or device companies?

CMS Open Payments shows $3,012 in general payments to Dr. Carias Zuniga from 22 companies from 2021 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Sandra Gabriela Carias Zuniga been practicing?

Dr. Carias Zuniga graduated from medical school in 2014, 12 years ago.

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