Emergency MedicineEmergency Service, HospitalLength of Stay
Dr. Barbara-Jean Gutierrez Santos, MD
NPI1679700017PAC ID5294984324
- Medicare services, 2024
- 20
- Medicare patients, 2024
- 29
- Part D claims, 2024
- 298
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 9965 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente - Fontana Medical Center
Fontana, California
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Dr. Barbara-Jean Gutierrez Santos is an emergency medicine physician in Fontana, California
Dr. Santos practices at Kaiser Permanente - Fontana Medical Center in Fontana, California.
Dr. Santos' NPI, 1679700017, was assigned on June 11, 2009. Dr. Santos graduated from UC Irvine School of Medicine in 2009. Dr. Santos' California license number on file is A121007.
NPI and contact details
- NPI
- 1679700017NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294984324
- NPI enumeration date
- June 11, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Barbara-Jean Gutierrez Santos practices at Kaiser Permanente - Fontana Medical Center in Fontana, California
Dr. Santos' primary practice is Kaiser Permanente - Fontana Medical Center, at 9965 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Kaiser Permanente - Fontana Medical Center9965 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Barbara-Jean Gutierrez Santos is affiliated with 2 sites of care and 1 medical group
Dr. Santos' primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California. Dr. Santos is also affiliated with Fontana Medical Center. The medical group on file is Southern California Permanente Medical Group.
Kaiser Permanente - Fontana Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Barbara-Jean Gutierrez Santos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Santos practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente - Fontana Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Barbara-Jean Gutierrez Santos is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Santos' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Santos is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Santos has a license on file in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Santos
Counts of emergency medicine physicians 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. Barbara-Jean Gutierrez Santos billed Medicare for 20 services in 2024
CMS data shows 20 Medicare services from Dr. Santos across 1 procedure code in 2024, for 29 Medicare patients. Medicare paid $1,396 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202420
Medicare patients29
Paid by Medicare$1,396
Procedure codes1
Dr. Santos' Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 232024: 2013%
Dr. Santos compared with the California median for emergency medicine physicians, 2024
- Dr. Santos
- California median
- Medicare services
- 20vs 26592% below
- Medicare patients
- 29vs 24388% below
- Part D claims
- 147vs 622.4 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Santos' 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.
Need commercial claims for Dr. Santos?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Santos and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Barbara-Jean Gutierrez Santos treated 29 Medicare patients in 2024, average age 68
CMS counts 29 Medicare patients who saw Dr. Santos in 2024. The largest group is 65 to 74, with 16 patients. 75% of them have high blood pressure, and 66% have high cholesterol. 59% are also on Medicaid. Their average risk score is 2.57, 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. Santos' median patient age at 42, with 59% women.
Medicare patients, 202429
Average age68
Average risk score2.57
Also on Medicaid59%
Dr. Santos' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Santos' Medicare patients by sex, 2024
- Women1448%
- Men1552%
Chronic conditions among Dr. Santos' Medicare patients, 2024
- High blood pressure75%
- High cholesterol66%
- Diabetes45%
- Arthritis41%
- Mood disorders38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Santos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Barbara-Jean Gutierrez Santos wrote 298 Medicare Part D claims in 2024
In 2024, Dr. Santos wrote 298 Medicare Part D claims for 192 patients. 92% of them were for generic drugs. CMS names the drug for 147 of them, across 6 drugs with 11 or more claims each, at $1,485 in total drug cost. In 2023, CMS named 107 claims across 5 drugs.
Part D claims, 2024298
Drugs named by CMS6
Total drug cost$1,485
Part D patients192
Dr. Santos' Part D claims by kind of drug, 2024
- Generic274 claims92%
- Brand-name and other24 claims8%
Dr. Santos' 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. Santos' Part D claims, 2024
- Opioids22%66 of 298 claims
- Antibiotics34%100 of 298 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: 1072024: 14737%
Drugs named by CMS: 6 in 2024, 5 in 2023.
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
How Dr. Barbara-Jean Gutierrez Santos takes part in Medicare
Dr. Santos accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Barbara-Jean Gutierrez Santos has 1 publication on record
Dmand AI links 1 paper to Dr. Santos. Dr. Santos' most frequent co-author is Bharath Chakravarthy, MD.
Papers1
Dr. Santos' most frequent co-authors
Recent publications by Dr. Santos
See who Dr. Santos researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Santos works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Barbara-Jean Gutierrez Santos graduated from UC Irvine School of Medicine
Dr. Santos graduated from UC Irvine School of Medicine in 2009.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Barbara-Jean Gutierrez Santos accepts plans from 2 insurance carriers
Dr. Santos is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Santos accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Barbara-Jean Gutierrez Santos's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Barbara-Jean Gutierrez Santos
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. Barbara-Jean Gutierrez Santos' NPI number?
Dr. Barbara-Jean Gutierrez Santos' NPI number is 1679700017. It was assigned on June 11, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Barbara-Jean Gutierrez Santos?
Dr. Barbara-Jean Gutierrez Santos is an emergency medicine physician in Fontana, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Barbara-Jean Gutierrez Santos practice?
Dr. Santos practices at 9965 Sierra Ave, Fontana, CA 92335. Dr. Santos' primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California.
What is Dr. Barbara-Jean Gutierrez Santos' office phone number?
The practice phone on file for Dr. Santos is (909) 427-5000.
What is Dr. Barbara-Jean Gutierrez Santos' medical license number?
Dr. Santos' California license number on file is A121007.
Which hospitals is Dr. Barbara-Jean Gutierrez Santos affiliated with?
Dr. Santos is affiliated with Fontana Medical Center.
What medical group is Dr. Barbara-Jean Gutierrez Santos part of?
Dr. Santos is linked to Southern California Permanente Medical Group.
Does Dr. Barbara-Jean Gutierrez Santos accept Medicare?
Yes. CMS data shows Dr. Santos billed Medicare for 20 services in 2024, and Dr. Santos accepts Medicare assignment.
How many Medicare patients does Dr. Barbara-Jean Gutierrez Santos see?
CMS counts 29 Medicare patients who saw Dr. Santos in 2024, with an average age of 68.
Is Dr. Barbara-Jean Gutierrez Santos board certified?
Yes. Dr. Santos is board certified in emergency medicine by the American Board of Emergency Medicine.
Show 7 more questionsShow fewer questions
What services does Dr. Barbara-Jean Gutierrez Santos bill to Medicare?
In 2024, Dr. Santos' most billed Medicare services were emergency department visit (99284).
Where did Dr. Barbara-Jean Gutierrez Santos go to medical school?
Dr. Santos graduated from UC Irvine School of Medicine in 2009.
What drugs does Dr. Barbara-Jean Gutierrez Santos prescribe most?
In 2024 Medicare Part D data, Dr. Santos' most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Cephalexin.
How long has Dr. Barbara-Jean Gutierrez Santos been practicing?
Dr. Santos graduated from medical school in 2009, 17 years ago.
Does Dr. Barbara-Jean Gutierrez Santos do research?
Dmand AI links 1 publication to Dr. Santos.
Who does Dr. Barbara-Jean Gutierrez Santos publish with?
Dr. Santos' most frequent co-authors are Bharath Chakravarthy, MD (1 shared paper).
What insurance does Dr. Barbara-Jean Gutierrez Santos accept?
Dr. Santos is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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