Dr. Ashwin Peres-Da-Silva, MD

  • San Francisco, CA
  • Internist
NPI1083143390PAC ID8123397387
Medicare services, 2024
1,506
Medicare patients, 2024
746
Part D claims, 2024
3,043
Publications
4
MIPS score, 2024
100
Practice address
2333 Buchanan St, San Francisco, CA 94115
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD

Acute Care Hospital outpatient department · San Francisco, California

See all 6 affiliations

Find Dr. Peres-Da-Silva'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. Ashwin Peres-Da-Silva is an internist in San Francisco, California

Dr. Peres-Da-Silva practices at California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD in San Francisco, California.

Dr. Peres-Da-Silva's NPI, 1083143390, was assigned on June 8, 2017. Dr. Peres-Da-Silva graduated from Duke University School Of Medicine in 2017. Dr. Peres-Da-Silva's California license number on file is A166415.

NPI and contact details
Medicare PAC ID
8123397387
NPI enumeration date
June 8, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
35
Medical school graduation
2017

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

Dr. Ashwin Peres-Da-Silva practices at California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD in San Francisco, California

Dr. Peres-Da-Silva's primary practice is California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD, at 2333 Buchanan St, San Francisco, CA 94115.

  • California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD
    2333 Buchanan St, San Francisco, CA 94115

Source: Dmand AI Affiliation Data

Dr. Ashwin Peres-Da-Silva is affiliated with 5 sites of care and 1 medical group

Dr. Peres-Da-Silva's primary practice is California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD in San Francisco, California. Dr. Peres-Da-Silva is also affiliated with California Pacific Medical Center Van Ness Campus. The medical group on file is Pacific Inpatient Medical Group. Dmand AI also links Dr. Peres-Da-Silva to 3 more hospitals, each named with a free account.

California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPDAcute Care Hospital outpatient department · San Francisco, CaliforniaPrimary
California Pacific Medical Center Van Ness CampusAcute care hospital, San Francisco, CAPacific Inpatient Medical GroupPrimary care group, San Francisco, CA3 hospitalsNames with a free account
See all 6 affiliations for Dr. Peres-Da-Silva

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Ashwin Peres-Da-Silva's practice

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

EHR by site
SiteEHR vendor and product
California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPDAvailable with a free account
+4 more affiliated sitesAvailable 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. Peres-Da-Silva 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. Ashwin Peres-Da-Silva is one of 16,751 internists in California

Internal medicine is Dr. Peres-Da-Silva's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Peres-Da-Silva is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Peres-Da-Silva's licenses on file in 2 states: California and Michigan.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A166415 · 2019 to 2025 · taxonomy 207R00000X
  • Michigan license2017 to 2019

Clinical focus

Dmand AI lists arthritis, asthma, atherosclerosis, atrial fibrillation and flutter, chronic anemia, chronic diabetes, chronic hypertension and chronic obstructive pulmonary disease (COPD) among the conditions Dr. Peres-Da-Silva treats.

Internists near Dr. Peres-Da-Silva

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. Ashwin Peres-Da-Silva billed Medicare for 1,506 services in 2024

CMS data shows 1,506 Medicare services from Dr. Peres-Da-Silva across 11 procedure codes in 2024, for 746 Medicare patients. Medicare paid $170,425 for them.

Medicare services, 20241,506
Medicare patients746
Paid by Medicare$170,425
Procedure codes11

Dr. Peres-Da-Silva's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,1582024: 1,43023%
Other services
2023: 762024: 76No change

Where Dr. Peres-Da-Silva's Medicare services took place, 2024

  • In an office161%
  • In a facility1,49099%

Dr. Peres-Da-Silva compared with the California median for internists, 2024

  • Dr. Peres-Da-Silva
  • California median
Medicare services
1,506vs 3614.2 times
Medicare patients
746vs 1514.9 times
Part D claims
2,495vs 4215.9 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Peres-Da-Silva'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. Peres-Da-Silva

Need commercial claims for Dr. Peres-Da-Silva?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Peres-Da-Silva and other internists in California.

Book a meeting

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

Dr. Ashwin Peres-Da-Silva treated 746 Medicare patients in 2024, average age 79

CMS counts 746 Medicare patients who saw Dr. Peres-Da-Silva in 2024. The largest group is 75 to 84, with 247 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 77% are also on Medicaid. Their average risk score is 2.67, 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. Peres-Da-Silva's median patient age at 74, with 48% women.

Medicare patients, 2024746
Average age79
Average risk score2.67
Also on Medicaid77%

Dr. Peres-Da-Silva's Medicare patients by age, 2024

Dr. Peres-Da-Silva's Medicare patients by sex, 2024

  • Women36148%
  • Men38552%

Chronic conditions among Dr. Peres-Da-Silva's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol73%
  3. Alzheimer's and dementia58%
  4. Arthritis52%
  5. Mood disorders52%
  6. Depression49%
  7. Diabetes48%
  8. Chronic kidney disease45%

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

Dr. Peres-Da-Silva's patients across all payers

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

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women48%
  • Men46%

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

Dr. Ashwin Peres-Da-Silva wrote 3,043 Medicare Part D claims in 2024

In 2024, Dr. Peres-Da-Silva wrote 3,043 Medicare Part D claims for 296 patients. 89% of them were for generic drugs. CMS names the drug for 2,495 of them, across 56 drugs with 11 or more claims each, at $71,340 in total drug cost. In 2023, CMS named 782 claims across 30 drugs.

Part D claims, 20243,043
Drugs named by CMS56
Total drug cost$71,340
Part D patients296

Dr. Peres-Da-Silva's Part D claims by kind of drug, 2024

  • Generic2,710 claims89%
  • Brand-name and other333 claims11%

Dr. Peres-Da-Silva'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. Peres-Da-Silva's Part D claims, 2024

  • Opioids7%224 of 3,043 claims
  • Antibiotics2%61 of 3,043 claims
  • Antipsychotics, patients 65 and over1%20 of 3,043 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: 7822024: 2,495219%

Drugs named by CMS: 56 in 2024, 30 in 2023.

See all prescribing by Dr. Peres-Da-Silva

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. Ashwin Peres-Da-Silva scored 100 out of 100 in Medicare's MIPS program for 2024

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

Accepts Medicare assignment
Yes

Dr. Peres-Da-Silva's MIPS scores, performance year 2024

  • 100of 100Final score
  • 90of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 78of 100Cost

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

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

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

For MedTech and pharma teams

Find internists like Dr. Peres-Da-Silva 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. Ashwin Peres-Da-Silva has 4 publications on record

Dmand AI links 4 papers to Dr. Peres-Da-Silva, published from 2010 to 2017. 2017 was the busiest year, with 2. The most frequent topics are Arthroplasty, Replacement, Knee, Mice, Inbred C57BL and Mice, Knockout. Dr. Peres-Da-Silva's most frequent co-authors are David Edward Attarian, MD, Howard Y. Chang, MD and David W. Draper, MD.

Papers4
Years published2010 to 2017

Dr. Peres-Da-Silva's papers by year, 2010 to 2017

Topics Dr. Peres-Da-Silva writes about most

  • Arthroplasty, Replacement, Knee
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Signal Transduction

Dr. Peres-Da-Silva's most frequent co-authors

Recent publications by Dr. Peres-Da-Silva

See all 4 publications and co-authors

See who Dr. Peres-Da-Silva researches with

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

How network discovery works

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

Dr. Ashwin Peres-Da-Silva has 1 award and honors on record

Dmand AI lists 1 award for Dr. Peres-Da-Silva, most recently Resident Travel Grant in 2020.

Awards and honors for Dr. Peres-Da-Silva

  1. 2020
    • Resident Travel Grant

Source: Dmand AI Professional Profile Data

Dr. Ashwin Peres-Da-Silva graduated from Duke University School Of Medicine

Dr. Peres-Da-Silva graduated from Duke University School Of Medicine in 2017.

  1. Medical schoolDuke University School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Ashwin Peres-Da-Silva accepts plans from 1 insurance carrier

Dr. Peres-Da-Silva is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • CMS Medicare

Source: Dmand AI Insurance Network Data

Sources for Dr. Ashwin Peres-Da-Silva'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Awards and committee rolesDmand AI Professional Profile Data
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. Ashwin Peres-Da-Silva

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. Ashwin Peres-Da-Silva's NPI number?

Dr. Ashwin Peres-Da-Silva's NPI number is 1083143390. It was assigned on June 8, 2017, and it is active in the NPI Registry.

What kind of doctor is Dr. Ashwin Peres-Da-Silva?

Dr. Ashwin Peres-Da-Silva is an internist in San Francisco, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Ashwin Peres-Da-Silva practice?

Dr. Peres-Da-Silva practices at 2333 Buchanan St, San Francisco, CA 94115. Dr. Peres-Da-Silva's primary practice is California Pacific Medical Center - B.H. Cancer Care Center-Buchanan St - HOPD in San Francisco, California. Dmand AI also links Dr. Peres-Da-Silva to 3 hospitals.

What is Dr. Ashwin Peres-Da-Silva's medical license number?

Dr. Peres-Da-Silva's California license number on file is A166415, one of the licenses on file in 2 states.

Which states has Dr. Ashwin Peres-Da-Silva been licensed in?

Dmand AI has state licenses on file for Dr. Peres-Da-Silva in California (2019 to 2025) and Michigan (2017 to 2019).

Which hospitals is Dr. Ashwin Peres-Da-Silva affiliated with?

Dr. Peres-Da-Silva is affiliated with California Pacific Medical Center Van Ness Campus. Dmand AI links Dr. Peres-Da-Silva to 3 more hospitals.

What medical group is Dr. Ashwin Peres-Da-Silva part of?

Dr. Peres-Da-Silva is linked to Pacific Inpatient Medical Group.

Does Dr. Ashwin Peres-Da-Silva accept Medicare?

Yes. CMS data shows Dr. Peres-Da-Silva billed Medicare for 1,506 services in 2024, and Dr. Peres-Da-Silva accepts Medicare assignment.

What is Dr. Ashwin Peres-Da-Silva's MIPS score?

Dr. Peres-Da-Silva's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.

How many Medicare patients does Dr. Ashwin Peres-Da-Silva see?

CMS counts 746 Medicare patients who saw Dr. Peres-Da-Silva in 2024, with an average age of 79.

Show 8 more questionsShow fewer questions

Is Dr. Ashwin Peres-Da-Silva board certified?

Yes. Dr. Peres-Da-Silva is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Ashwin Peres-Da-Silva bill to Medicare?

In 2024, Dr. Peres-Da-Silva's most billed Medicare services were nursing facility care (99309), nursing facility care (99310) and nursing facility care (99306).

Where did Dr. Ashwin Peres-Da-Silva go to medical school?

Dr. Peres-Da-Silva graduated from Duke University School Of Medicine in 2017.

What drugs does Dr. Ashwin Peres-Da-Silva prescribe most?

In 2024 Medicare Part D data, Dr. Peres-Da-Silva's most prescribed drugs by claims were Amlodipine Besylate, Lisinopril and Furosemide.

How long has Dr. Ashwin Peres-Da-Silva been practicing?

Dr. Peres-Da-Silva graduated from medical school in 2017, 9 years ago.

Does Dr. Ashwin Peres-Da-Silva do research?

Dmand AI links 4 publications to Dr. Peres-Da-Silva, published from 2010 to 2017.

Who does Dr. Ashwin Peres-Da-Silva publish with?

Dr. Peres-Da-Silva's most frequent co-authors are David Edward Attarian, MD (2 shared papers), Howard Y. Chang, MD (1 shared paper) and David W. Draper, MD (1 shared paper).

What insurance does Dr. Ashwin Peres-Da-Silva accept?

Dr. Peres-Da-Silva is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

Selling to internal medicine practices?

See internists 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)