Accidental FallsAntihypertensive AgentsBlood Pressure Monitoring, Ambulatory
Dr. John Sim, MD
NPI1497857510PAC ID2163475427
- Medicare services, 2024
- 918
- Medicare patients, 2024
- 424
- Part D claims, 2024
- 5,809
- Publications
- 52
- Hospital affiliations
- 3
- Practice address
- 317 West Pueblo, Santa Barbara, CA 93105
- Practice phone
- Call (805) 681-7500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sansum Clinic
Surgery Center - Medicare-Certified · Santa Barbara, California
Find Dr. Sim'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.
Dr. John Sim is an internist in Santa Barbara, California
Dr. Sim practices at Sansum Clinic in Santa Barbara, California.
Dr. Sim's NPI, 1497857510, was assigned on September 1, 2006. Dr. Sim graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2000. Dr. Sim holds California license A82071.
NPI and contact details
- NPI
- 1497857510NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163475427
- NPI enumeration date
- September 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (805) 681-7500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Sim practices at Sansum Clinic in Santa Barbara, California
Dr. Sim's primary practice is Sansum Clinic, at 317 West Pueblo, Santa Barbara, CA 93105. The practice phone is (805) 681-7500.
- Sansum Clinic317 West Pueblo, Santa Barbara, CA 93105Phone(805) 681-7500
Source: Dmand AI Affiliation Data
Dr. John Sim is affiliated with 7 sites of care and 1 medical group
Dr. Sim's primary practice is Sansum Clinic in Santa Barbara, California. Dr. Sim is also affiliated with Santa Barbara Cottage Hospital. The medical group on file is Sansum Clinic. Dmand AI also links Dr. Sim to 2 more hospitals and 3 home health agencies, each named with a free account. Dr. Sim's employer is on file too: a surgery center (asc).
Sansum ClinicPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Sim's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sim practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sansum Clinic | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Sim is one of 16,751 internists in California
Internal medicine is Dr. Sim's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sim is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Sim's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Illinois license
Clinical focus
Dmand AI lists acid reflux, acute skin infection, adjustment disease, aneurysm, ankle or foot injury, arteritis, arthritis and asthma among the conditions Dr. Sim treats.
Internists near Dr. Sim
Counts of internists 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. John Sim billed Medicare for 918 services in 2024
CMS data shows 918 Medicare services from Dr. Sim across 13 procedure codes in 2024, for 424 Medicare patients. Medicare paid $95,751 for them. Every service was in an office.
Medicare services, 2024918
Medicare patients424
Paid by Medicare$95,751
Procedure codes13
Dr. Sim's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5622024: 50111%
- Other services
- 2023: 4122024: 36910%
- Tests and treatments
- 2023: 812024: 4841%
- Surgery
- 2023: 122024: 0100%
Dr. Sim compared with the California median for internists, 2024
- Dr. Sim
- California median
- Medicare services
- 918vs 3612.5 times
- Medicare patients
- 424vs 1512.8 times
- Part D claims
- 5,193vs 42112.3 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Sim'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.
Need commercial claims for Dr. Sim?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sim and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Sim treated 424 Medicare patients in 2024, average age 75
CMS counts 424 Medicare patients who saw Dr. Sim in 2024. The largest group is 65 to 74, with 197 patients. 75% of them have high cholesterol, and 59% have high blood pressure. 9% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sim's median patient age at 72, with 47% women.
Medicare patients, 2024424
Average age75
Average risk score0.98
Also on Medicaid9%
Dr. Sim's Medicare patients by age, 2024
Dr. Sim's Medicare patients by sex, 2024
- Women18544%
- Men23956%
Chronic conditions among Dr. Sim's Medicare patients, 2024
- High cholesterol75%
- High blood pressure59%
- Arthritis44%
- Diabetes18%
- Mood disorders18%
- Osteoporosis17%
- Chronic kidney disease16%
- Ischemic heart disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sim's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Sim wrote 5,809 Medicare Part D claims in 2024
In 2024, Dr. Sim wrote 5,809 Medicare Part D claims for 611 patients. 91% of them were for generic drugs. CMS names the drug for 5,193 of them, across 97 drugs with 11 or more claims each, at $279,324 in total drug cost. In 2023, CMS named 5,018 claims across 94 drugs.
Part D claims, 20245,809
Drugs named by CMS97
Total drug cost$279,324
Part D patients611
Dr. Sim's Part D claims by kind of drug, 2024
- Generic5,284 claims91%
- Brand-name505 claims9%
- Other20 claims0%
Dr. Sim'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. Sim's Part D claims, 2024
- Opioids4%225 of 5,809 claims
- Antibiotics1%60 of 5,809 claims
- Antipsychotics, patients 65 and over0%16 of 5,809 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: 5,0182024: 5,1933%
Drugs named by CMS: 97 in 2024, 94 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
Dr. John Sim offers telehealth to Medicare patients
Dr. Sim accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sim as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Sim has 52 publications on record
Dmand AI links 52 papers to Dr. Sim, published from 2008 to 2025. 2015 was the busiest year, with 8. Dr. Sim's most frequent co-authors are Csaba Pal Kovesdy, MD, Connie Meeyoung Rhee, MD and John Jung Uk Sim, MD.
Papers52
Years published2008 to 2025
Dr. Sim's papers by year, 2014 to 2025
Dr. Sim's most frequent co-authors
- Csaba Pal Kovesdy, MD25 shared papers
- Connie Meeyoung Rhee, MD12 shared papers
- John Jung Uk Sim, MD7 shared papers
Recent publications by Dr. Sim
Jt Comm J Qual Patient Saf
Hip FracturesQuality Indicators, Health Care
See who Dr. Sim researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sim works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Sim received $4,383 in industry payments from 2016 to 2023
CMS Open Payments shows 309 general payments to Dr. Sim from 29 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 99% of the total. Pfizer Inc. paid the most, $833.
General payments to Dr. Sim by program year, 2016 to 2023
General payments to Dr. Sim by kind, 2016 to 2023
$4.4Kin total
- Food and beverage$4,33599%
- Education$481%
Companies that paid Dr. Sim the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Sim has 1 award and honors on record
Dmand AI lists 1 award for Dr. Sim, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Sim
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. John Sim graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Sim graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2000.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John Sim accepts plans from 12 insurance carriers
Dr. Sim is in network with 12 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- +4 more carriersWith a free account
Plan types Dr. Sim accepts, by number of carriers
- PPO8
- HMO6
- Medicare6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. John Sim'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John Sim
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. John Sim's NPI number?
Dr. John Sim's NPI number is 1497857510. It was assigned on September 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Sim?
Dr. John Sim is an internist in Santa Barbara, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Sim practice?
Dr. Sim practices at 317 West Pueblo, Santa Barbara, CA 93105. Dr. Sim's primary practice is Sansum Clinic in Santa Barbara, California. Dmand AI also links Dr. Sim to 2 hospitals and 3 home health agencies.
What is Dr. John Sim's office phone number?
The practice phone on file for Dr. Sim is (805) 681-7500.
What is Dr. John Sim's medical license number?
Dr. Sim holds California license A82071, one of the licenses on file in 2 states.
Which states has Dr. John Sim been licensed in?
Dmand AI has state licenses on file for Dr. Sim in California (2003 to 2026) and Illinois (2000 to 2005).
Which hospitals is Dr. John Sim affiliated with?
Dr. Sim is affiliated with Santa Barbara Cottage Hospital. Dmand AI links Dr. Sim to 2 more hospitals.
What medical group is Dr. John Sim part of?
Dr. Sim is linked to Sansum Clinic.
Does Dr. John Sim accept Medicare?
Yes. CMS data shows Dr. Sim billed Medicare for 918 services in 2024, and Dr. Sim accepts Medicare assignment.
Does Dr. John Sim offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Sim as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. John Sim see?
CMS counts 424 Medicare patients who saw Dr. Sim in 2024, with an average age of 75.
Is Dr. John Sim board certified?
Yes. Dr. Sim is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. John Sim bill to Medicare?
In 2024, Dr. Sim's most billed Medicare services were medicare service (G0439), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. John Sim go to medical school?
Dr. Sim graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2000.
What drugs does Dr. John Sim prescribe most?
In 2024 Medicare Part D data, Dr. Sim's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. John Sim received payments from drug or device companies?
CMS Open Payments shows $4,383 in general payments to Dr. Sim from 29 companies from 2016 to 2023. The largest total came from Pfizer Inc.
How long has Dr. John Sim been practicing?
Dr. Sim graduated from medical school in 2000, 26 years ago.
Does Dr. John Sim do research?
Dmand AI links 52 publications to Dr. Sim, published from 2008 to 2025.
Who does Dr. John Sim publish with?
Dr. Sim's most frequent co-authors are Csaba Pal Kovesdy, MD (25 shared papers), Connie Meeyoung Rhee, MD (12 shared papers) and John Jung Uk Sim, MD (7 shared papers).
What insurance does Dr. John Sim accept?
Dr. Sim is in network with 12 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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