Dr. Cynthia S. Santillan, MD

  • San Diego, CA
  • Diagnostic radiologist
NPI1932132404PAC ID5294766234
Medicare services, 2024
4,724
Medicare patients, 2024
1,690
Publications
29
MIPS score, 2024
91
Hospital affiliations
3
Practice address
200 W Arbor Dr, San Diego, CA 92103
Practice phone
Call (619) 543-6222
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

See all 6 affiliations

Find Dr. Santillan's professional email, personal email and mobile number

Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.

View contacts for free

Dr. Cynthia S. Santillan is a diagnostic radiologist in San Diego, California

Dr. Santillan practices at UCSD Hillcrest Medical Center in San Diego, California.

Dr. Santillan's NPI, 1932132404, was assigned on July 8, 2006. Dr. Santillan graduated from WashU Medicine in 2000. Dr. Santillan holds California license A90879.

NPI and contact details
Medicare PAC ID
5294766234
NPI enumeration date
July 8, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(619) 543-6222
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
52
Medical school graduation
2000

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

Dr. Cynthia S. Santillan practices at UCSD Hillcrest Medical Center in San Diego, California

Dr. Santillan's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.

  • UCSD Hillcrest Medical Center
    200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Cynthia S. Santillan is affiliated with 4 sites of care and 2 medical groups

Dr. Santillan's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Santillan is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Santillan to 2 more hospitals and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Santillan

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. Cynthia S. Santillan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Santillan practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSD Hillcrest Medical CenterAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Santillan practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Cynthia S. Santillan is one of 4,096 diagnostic radiologists in California

Diagnostic radiology is Dr. Santillan's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Santillan is board certified in diagnostic radiology by the American Board of Radiology. Dr. Santillan is licensed in California.

Specialties and state licenses

  • Diagnostic radiology, CaliforniaPrimaryLicense A90879 · 2005 to 2027 · taxonomy 2085R0202X

Diagnostic radiologists near Dr. Santillan

Counts of diagnostic radiologists 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. Cynthia S. Santillan billed Medicare for 4,724 services in 2024

CMS data shows 4,724 Medicare services from Dr. Santillan across 27 procedure codes in 2024, for 1,690 Medicare patients. Medicare paid $99,425 for them.

Medicare services, 20244,724
Medicare patients1,690
Paid by Medicare$99,425
Procedure codes27

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

  • 2023
  • 2024
Other services
2023: 02024: 2,695
Imaging
2023: 1,6742024: 1,7826%
Tests and treatments
2023: 2702024: 23314%
Office and hospital visits
2023: 192024: 1426%

Where Dr. Santillan's Medicare services took place, 2024

  • In an office2,77059%
  • In a facility1,95441%

Dr. Santillan compared with the California median for diagnostic radiologists, 2024

  • Dr. Santillan
  • California median
Medicare services
4,724vs 2,2812.1 times
Medicare patients
1,690vs 1,34626% above

Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.

Dr. Santillan'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. Santillan

Need commercial claims for Dr. Santillan?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Santillan and other diagnostic radiologists in California.

Book a meeting

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

Dr. Cynthia S. Santillan treated 1,690 Medicare patients in 2024, average age 72

CMS counts 1,690 Medicare patients who saw Dr. Santillan in 2024. The largest group is 65 to 74, with 750 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 33% are also on Medicaid. Their average risk score is 2.41, 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. Santillan's median patient age at 60, with 55% women.

Medicare patients, 20241,690
Average age72
Average risk score2.41
Also on Medicaid33%

Dr. Santillan's Medicare patients by age, 2024

Dr. Santillan's Medicare patients by sex, 2024

  • Women84450%
  • Men84650%

Chronic conditions among Dr. Santillan's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol73%
  3. Arthritis48%
  4. Cancer36%
  5. Diabetes36%
  6. Chronic kidney disease35%
  7. Ischemic heart disease34%
  8. Mood disorders33%

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

Dr. Santillan's patients across all payers

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

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women55%
  • Men44%

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

Dr. Cynthia S. Santillan scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Santillan for performance year 2024, reported as part of a group. Dr. Santillan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Santillan's MIPS scores, performance year 2024

  • 91of 100Final score
  • 84.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 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

For MedTech and pharma teams

Find diagnostic radiologists like Dr. Santillan by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Cynthia S. Santillan has 29 publications on record

Dmand AI links 29 papers to Dr. Santillan, published from 2012 to 2023. 2013 was the busiest year, with 2. The most frequent topics are Magnetic Resonance Imaging, Tomography, X-Ray Computed and Liver Neoplasms. Dr. Santillan has published most often in Abdom Radiol (NY). Dr. Santillan's most frequent co-authors are Claude B. Sirlin, Yuko Kono, MD and William J. Sandborn, MD.

Papers29
Years published2012 to 2023

Dr. Santillan's papers by year, 2012 to 2023

Topics Dr. Santillan writes about most

  • Magnetic Resonance Imaging
  • Tomography, X-Ray Computed
  • Liver Neoplasms
  • Carcinoma, Hepatocellular
  • Contrast Media
  • Crohn Disease
  • Liver
  • Algorithms

Dr. Santillan's most frequent co-authors

Recent publications by Dr. Santillan

See all 29 publications and co-authors

See who Dr. Santillan researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Santillan works with, so you can find a warm path to the right diagnostic radiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Cynthia S. Santillan received $1,023 in industry payments from 2016 to 2025

CMS Open Payments shows 13 general payments to Dr. Santillan from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $308.

General payments to Dr. Santillan by program year, 2016 to 2025

Companies that paid Dr. Santillan the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Santillan

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

Dr. Cynthia S. Santillan graduated from WashU Medicine

Dr. Santillan graduated from WashU Medicine in 2000. Dr. Santillan is a member of ARRS, Association of University Radiologists, RSNA and Society of Abdominal Radiology.

  1. Medical schoolWashU Medicine
  2. Board certified in diagnostic radiologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Cynthia S. Santillan accepts plans from 9 insurance carriers

Dr. Santillan is in network with 9 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Molina
  • Regence Health Plans
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • +1 more carriersWith a free account

Plan types Dr. Santillan accepts, by number of carriers

  1. Medicare7
  2. PPO4
  3. HMO3
  4. POS3
  5. EPO1
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Cynthia S. Santillan'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)
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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. Cynthia S. Santillan

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. Cynthia S. Santillan's NPI number?

Dr. Cynthia S. Santillan's NPI number is 1932132404. It was assigned on July 8, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Cynthia S. Santillan?

Dr. Cynthia S. Santillan is a diagnostic radiologist in San Diego, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).

Where does Dr. Cynthia S. Santillan practice?

Dr. Santillan practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Santillan's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dmand AI also links Dr. Santillan to 2 hospitals and 1 medical group.

What is Dr. Cynthia S. Santillan's office phone number?

The practice phone on file for Dr. Santillan is (619) 543-6222.

What is Dr. Cynthia S. Santillan's medical license number?

Dr. Santillan holds California license A90879.

Which hospitals is Dr. Cynthia S. Santillan affiliated with?

Dr. Santillan is affiliated with Hillcrest Medical Center. Dmand AI links Dr. Santillan to 2 more hospitals.

What medical group is Dr. Cynthia S. Santillan part of?

Dr. Santillan is linked to UC San Diego Health. Dmand AI links Dr. Santillan to 1 more medical group.

Does Dr. Cynthia S. Santillan accept Medicare?

Yes. CMS data shows Dr. Santillan billed Medicare for 4,724 services in 2024, and Dr. Santillan accepts Medicare assignment.

What is Dr. Cynthia S. Santillan's MIPS score?

Dr. Santillan's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

How many Medicare patients does Dr. Cynthia S. Santillan see?

CMS counts 1,690 Medicare patients who saw Dr. Santillan in 2024, with an average age of 72.

Show 8 more questionsShow fewer questions

Is Dr. Cynthia S. Santillan board certified?

Yes. Dr. Santillan is board certified in diagnostic radiology by the American Board of Radiology.

What services does Dr. Cynthia S. Santillan bill to Medicare?

In 2024, Dr. Santillan's most billed Medicare services were medical supplies or transport (A9585), diagnostic imaging (74177) and diagnostic imaging (74018).

Where did Dr. Cynthia S. Santillan go to medical school?

Dr. Santillan graduated from WashU Medicine in 2000.

Has Dr. Cynthia S. Santillan received payments from drug or device companies?

CMS Open Payments shows $1,023 in general payments to Dr. Santillan from 8 companies from 2016 to 2025. The largest total came from Genentech, Inc.

How long has Dr. Cynthia S. Santillan been practicing?

Dr. Santillan graduated from medical school in 2000, 26 years ago.

Does Dr. Cynthia S. Santillan do research?

Dmand AI links 29 publications to Dr. Santillan, published from 2012 to 2023.

Who does Dr. Cynthia S. Santillan publish with?

Dr. Santillan's most frequent co-authors are Claude B. Sirlin (10 shared papers), Yuko Kono, MD (7 shared papers) and William J. Sandborn, MD (5 shared papers).

What insurance does Dr. Cynthia S. Santillan accept?

Dr. Santillan is in network with 9 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

Selling to diagnostic radiology practices?

See diagnostic radiologists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)