Dr. Darith S. Khay, MD
- Medicare services, 2024
- 192
- Medicare patients, 2024
- 83
- Part D claims, 2024
- 11,872
- Hospital affiliations
- 1
- Industry payments
- $9,213
- Practice address
- 225 N Jackson Avenue, San Jose, CA 95116
- Practice phone
- Call (408) 259-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Khay'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. Darith S. Khay is a family medicine physician in San Jose, California
Dr. Khay practices at Regional Medical Center in San Jose, California, part of County of Santa Clara, CA.
Dr. Khay's NPI, 1295761609, was assigned on June 25, 2006. Dr. Khay graduated from John A. Burns School of Medicine in 1996. Dr. Khay holds California license A67883.
- NPI
- 1295761609NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274549480
- NPI enumeration date
- June 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 259-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Darith S. Khay practices at Regional Medical Center in San Jose, California
Dr. Khay's primary practice is Regional Medical Center, at 225 N Jackson Avenue, San Jose, CA 95116 in Santa Clara County. The practice phone is (408) 259-5000.
- Regional Medical Center225 N Jackson Avenue, San Jose, CA 95116 · Santa Clara CountyPhone(408) 259-5000
Source: Dmand AI Affiliation Data
Dr. Darith S. Khay is affiliated with 3 sites of care
Dr. Khay's primary practice is Regional Medical Center in San Jose, California, part of County of Santa Clara, CA. Dmand AI also links Dr. Khay to 2 physician offices, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Darith S. Khay's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Khay practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Regional Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across County of Santa Clara, CA and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Darith S. Khay is one of 15,680 family medicine physicians in California
Family medicine is Dr. Khay's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Khay's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists acute skin infection, arthritis, chronic diabetes, chronic hypertension, chronic nasal allergies, chronic obstructive pulmonary disease (COPD), contact dermatitis and fluid and electrolyte imbalances among the conditions Dr. Khay treats.
Family medicine physicians near Dr. Khay
Counts of family 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. Darith S. Khay billed Medicare for 192 services in 2024
CMS data shows 192 Medicare services from Dr. Khay across 4 procedure codes in 2024, for 83 Medicare patients. Medicare paid $9,503 for them. Every service was in an office.
Dr. Khay's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1602024: 14211%
- Other services
- 2023: 372024: 2922%
- Tests and treatments
- 2023: 362024: 2142%
Dr. Khay compared with the California median for family medicine physicians, 2024
- Dr. Khay
- California median
- Medicare services
- 192vs 24622% below
- Medicare patients
- 83vs 11830% below
- Part D claims
- 11,308vs 83313.6 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Khay'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Khay and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Darith S. Khay treated 83 Medicare patients in 2024, average age 71
CMS counts 83 Medicare patients who saw Dr. Khay in 2024. The largest group is 65 to 74, with 60 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Khay's median patient age at 62, with 57% women.
Dr. Khay's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Khay's Medicare patients by sex, 2024
- Women6477%
- Men1923%
Chronic conditions among Dr. Khay's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes42%
- Chronic kidney disease28%
- Osteoporosis23%
- Anxiety18%
- Arthritis13%
- PTSD13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Khay's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Darith S. Khay wrote 11,872 Medicare Part D claims in 2024
In 2024, Dr. Khay wrote 11,872 Medicare Part D claims for 400 patients. 85% of them were for generic drugs. CMS names the drug for 11,308 of them, across 135 drugs with 11 or more claims each, at $957,655 in total drug cost. In 2023, CMS named 11,560 claims across 142 drugs.
Dr. Khay's Part D claims by kind of drug, 2024
- Generic10,107 claims85%
- Brand-name1,658 claims14%
- Other107 claims1%
Dr. Khay'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. Khay's Part D claims, 2024
- Opioids2%269 of 11,872 claims
- Antibiotics2%197 of 11,872 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: 11,5602024: 11,3082%
Drugs named by CMS: 135 in 2024, 142 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. Darith S. Khay takes part in Medicare
Dr. Khay accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Darith S. Khay received $9,213 in industry payments from 2016 to 2025
CMS Open Payments shows 174 general payments to Dr. Khay from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. GlaxoSmithKline, LLC. paid the most, $980.
General payments to Dr. Khay by program year, 2016 to 2025
General payments to Dr. Khay by kind, 2016 to 2025
- Food and beverage$9,06198%
- Education$1522%
Companies that paid Dr. Khay the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Darith S. Khay graduated from John A. Burns School of Medicine
Dr. Khay graduated from John A. Burns School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Darith S. Khay accepts plans from 15 insurance carriers
Dr. Khay is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Khay accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Darith S. Khay'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Darith S. Khay
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. Darith S. Khay's NPI number?
Dr. Darith S. Khay's NPI number is 1295761609. It was assigned on June 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Darith S. Khay?
Dr. Darith S. Khay is a family medicine physician in San Jose, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Darith S. Khay practice?
Dr. Khay practices at 225 N Jackson Avenue, San Jose, CA 95116. Dr. Khay's primary practice is Regional Medical Center in San Jose, California, part of County of Santa Clara, CA. Dmand AI also links Dr. Khay to 2 physician offices.
What is Dr. Darith S. Khay's office phone number?
The practice phone on file for Dr. Khay is (408) 259-5000.
What is Dr. Darith S. Khay's medical license number?
Dr. Khay holds California license A67883, one of the licenses on file in 2 states.
Which states has Dr. Darith S. Khay been licensed in?
Dmand AI has state licenses on file for Dr. Khay in California (1999 to 2027) and Pennsylvania (1998 to 2000).
Which hospitals is Dr. Darith S. Khay affiliated with?
Dr. Khay practices at Regional Medical Center in San Jose, California.
Does Dr. Darith S. Khay accept Medicare?
Yes. CMS data shows Dr. Khay billed Medicare for 192 services in 2024, and Dr. Khay accepts Medicare assignment.
How many Medicare patients does Dr. Darith S. Khay see?
CMS counts 83 Medicare patients who saw Dr. Khay in 2024, with an average age of 71.
What services does Dr. Darith S. Khay bill to Medicare?
In 2024, Dr. Khay's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0008).
Show 5 more questionsShow fewer questions
Where did Dr. Darith S. Khay go to medical school?
Dr. Khay graduated from John A. Burns School of Medicine in 1996.
What drugs does Dr. Darith S. Khay prescribe most?
In 2024 Medicare Part D data, Dr. Khay's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
Has Dr. Darith S. Khay received payments from drug or device companies?
CMS Open Payments shows $9,213 in general payments to Dr. Khay from 27 companies from 2016 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Darith S. Khay been practicing?
Dr. Khay graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Darith S. Khay accept?
Dr. Khay is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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