J Am Coll Surg
Esophageal pH MonitoringEsophagogastric JunctionGastroesophageal Reflux
Dr. Perisa Ruhi-Williams, MD
NPI1760989362
- Part D claims, 2024
- 46
- Publications
- 7
- MIPS score, 2024
- 89
- Hospital affiliations
- 2
- Industry payments
- $3,161
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ruhi-Williams' 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. Perisa Ruhi-Williams is a general surgeon in Stanford, California
Dr. Ruhi-Williams practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Ruhi-Williams' NPI, 1760989362, was assigned on April 10, 2018. Dr. Ruhi-Williams graduated from Virginia Tech Carilion School Of Medicine in 2018. Dr. Ruhi-Williams' California license number on file is A165142.
NPI and contact details
- NPI
- 1760989362NPI Registry (opens in a new tab)
- NPI enumeration date
- April 10, 2018
- NPI status
- Active
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Perisa Ruhi-Williams practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Ruhi-Williams' primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Perisa Ruhi-Williams is affiliated with 3 sites of care and 1 medical group
Dr. Ruhi-Williams' primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Ruhi-Williams to 1 more hospital and 1 group practice or clinic, each named with a free account. Dr. Ruhi-Williams' employer is on file too: a hospital.
Stanford Health Care1 hospitalName with a free account1 group practice or clinicName with a free accountEmployer: hospitalName with a free account
See all 4 affiliations for Dr. Ruhi-WilliamsSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Perisa Ruhi-Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruhi-Williams practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Perisa Ruhi-Williams is one of 2,926 general surgeons in California
Surgery is Dr. Ruhi-Williams' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Ruhi-Williams is board certified in surgery by the American Board of Surgery. Dr. Ruhi-Williams has a license on file in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Ruhi-Williams
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
2,926general surgeons in California71general surgeons in Stanford63general surgeons at Stanford Hospital at 300 Pasteur Drive
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Perisa Ruhi-Williams' patients have a median age of 45
Across all payers, Dmand AI patient panel data puts Dr. Ruhi-Williams' median patient age at 45, with 68% women.
Dr. Ruhi-Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women68%
- Men30%
Source: Dmand AI Patient Panel Data
Dr. Perisa Ruhi-Williams wrote 46 Medicare Part D claims in 2024
In 2024, Dr. Ruhi-Williams wrote 46 Medicare Part D claims for 30 patients. 89% of them were for generic drugs. CMS names the drug for 22 of them, across 1 drug with 11 or more claims each, at $70 in total drug cost. In 2023, CMS named 24 claims across 1 drug.
Part D claims, 202446
Drugs named by CMS1
Total drug cost$70
Part D patients30
Dr. Ruhi-Williams' Part D claims by kind of drug, 2024
- Generic41 claims89%
- Brand-name and other5 claims11%
Dr. Ruhi-Williams' 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. Ruhi-Williams' Part D claims, 2024
- Opioids52%24 of 46 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: 242024: 228%
Drugs named by CMS: 1 in 2024, 1 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. Perisa Ruhi-Williams scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Ruhi-Williams for performance year 2024, reported as part of a group.
Dr. Ruhi-Williams' MIPS scores, performance year 2024
- 89of 100Final score
- 87.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Perisa Ruhi-Williams has 7 publications on record
Dmand AI links 7 papers to Dr. Ruhi-Williams, published from 2022 to 2024. 2022 was the busiest year, with 3. The most frequent topics are COVID-19 and Pandemics. Dr. Ruhi-Williams has published most often in Am Surg. Dr. Ruhi-Williams' most frequent co-authors are Ninh T. Nguyen, MD, Alpesh Navin Amin, MD and Jeffry T. Nahmias, MD.
Papers7
Years published2022 to 2024
Dr. Ruhi-Williams' papers by year, 2022 to 2024
Topics Dr. Ruhi-Williams writes about most
- COVID-19
- Pandemics
Dr. Ruhi-Williams' most frequent co-authors
- Ninh T. Nguyen, MD4 shared papers
- Alpesh Navin Amin, MD2 shared papers
- Jeffry T. Nahmias, MD2 shared papers
Recent publications by Dr. Ruhi-Williams
COVID-19Extracorporeal Membrane OxygenationRespiratory Distress Syndrome
J Am Coll Surg
Cholecystectomy, LaparoscopicCholecystitis, AcuteCOVID-19
Adverse Childhood ExperiencesCOVID-19Pandemics
Int J Environ Res Public Health
CravingDelay DiscountingSmoking
See who Dr. Ruhi-Williams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ruhi-Williams works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Perisa Ruhi-Williams received $3,161 in industry payments from 2024 to 2025
CMS Open Payments shows 8 general payments to Dr. Ruhi-Williams from 3 drug and device companies from 2024 to 2025. Education make up the largest share, 63% of the total. Intuitive Surgical, Inc. paid the most, $2,056.
General payments to Dr. Ruhi-Williams by program year, 2024 to 2025
General payments to Dr. Ruhi-Williams by kind, 2024 to 2025
$3.2Kin total
- Education$2,00063%
- Honoraria$80025%
- Food and beverage$36111%
Companies that paid Dr. Ruhi-Williams the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Perisa Ruhi-Williams graduated from Virginia Tech Carilion School Of Medicine
Dr. Ruhi-Williams graduated from Virginia Tech Carilion School Of Medicine in 2018.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Perisa Ruhi-Williams accepts plans from 6 insurance carriers
Dr. Ruhi-Williams is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Ruhi-Williams accepts, by number of carriers
- HMO3
- Medicare3
- POS3
- PPO3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Perisa Ruhi-Williams'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 | Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Perisa Ruhi-Williams
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. Perisa Ruhi-Williams' NPI number?
Dr. Perisa Ruhi-Williams' NPI number is 1760989362. It was assigned on April 10, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Perisa Ruhi-Williams?
Dr. Perisa Ruhi-Williams is a general surgeon in Stanford, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Perisa Ruhi-Williams practice?
Dr. Ruhi-Williams practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Ruhi-Williams' primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Ruhi-Williams to 1 hospital and 1 group practice or clinic.
What is Dr. Perisa Ruhi-Williams' office phone number?
The practice phone on file for Dr. Ruhi-Williams is (650) 723-4000.
What is Dr. Perisa Ruhi-Williams' medical license number?
Dr. Ruhi-Williams' California license number on file is A165142.
Which hospitals is Dr. Perisa Ruhi-Williams affiliated with?
Dr. Ruhi-Williams practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Ruhi-Williams to 1 more hospital.
What medical group is Dr. Perisa Ruhi-Williams part of?
Dr. Ruhi-Williams is linked to Stanford Health Care.
What is Dr. Perisa Ruhi-Williams' MIPS score?
Dr. Ruhi-Williams' MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
Is Dr. Perisa Ruhi-Williams board certified?
Yes. Dr. Ruhi-Williams is board certified in surgery by the American Board of Surgery.
Where did Dr. Perisa Ruhi-Williams go to medical school?
Dr. Ruhi-Williams graduated from Virginia Tech Carilion School Of Medicine in 2018.
Show 6 more questionsShow fewer questions
What drugs does Dr. Perisa Ruhi-Williams prescribe most?
In 2024 Medicare Part D data, Dr. Ruhi-Williams' most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Perisa Ruhi-Williams received payments from drug or device companies?
CMS Open Payments shows $3,161 in general payments to Dr. Ruhi-Williams from 3 companies from 2024 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Perisa Ruhi-Williams been practicing?
Dr. Ruhi-Williams graduated from medical school in 2018, 8 years ago.
Does Dr. Perisa Ruhi-Williams do research?
Dmand AI links 7 publications to Dr. Ruhi-Williams, published from 2022 to 2024.
Who does Dr. Perisa Ruhi-Williams publish with?
Dr. Ruhi-Williams' most frequent co-authors are Ninh T. Nguyen, MD (4 shared papers), Alpesh Navin Amin, MD (2 shared papers) and Jeffry T. Nahmias, MD (2 shared papers).
What insurance does Dr. Perisa Ruhi-Williams accept?
Dr. Ruhi-Williams is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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