Dr. Kirsti Ilona Weng Elder, MD
- Medicare services, 2024
- 11
- Medicare patients, 2024
- 33
- Part D claims, 2024
- 103
- MIPS score, 2024
- 89
- Hospital affiliations
- 2
- 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. Elder's professional email, personal email and mobile number
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Dr. Kirsti Ilona Weng Elder is an internist in Stanford, California
Dr. Elder practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Elder's NPI, 1689769309, was assigned on October 4, 2006. Dr. Elder graduated from Tulane School of Medicine in 1985. Dr. Elder's California license number on file is A42867.
- NPI
- 1689769309NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092862540
- NPI enumeration date
- October 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kirsti Ilona Weng Elder practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Elder's 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. Kirsti Ilona Weng Elder is affiliated with 3 sites of care and 1 medical group
Dr. Elder's 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. Elder to 1 more hospital and 1 group practice or clinic, each named with a free account. Dr. Elder's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Kirsti Ilona Weng Elder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Elder 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. Kirsti Ilona Weng Elder is one of 16,751 internists in California
Internal medicine is Dr. Elder's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Elder is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Elder's licenses on file in 2 states: California and Louisiana.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Louisiana license
Clinical focus
Dmand AI lists acute skin infection, adjustment disease, asthma, bronchitis, chronic anemia, chronic diabetes, chronic hypertension and chronic kidney disease among the conditions Dr. Elder treats.
Internists near Dr. Elder
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. Kirsti Ilona Weng Elder billed Medicare for 11 services in 2024
CMS data shows 11 Medicare services from Dr. Elder across 1 procedure code in 2024, all of them office visits, for 33 Medicare patients. Medicare paid $655 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Elder's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1612024: 1193%
- Other services
- 2023: 282024: 0100%
Dr. Elder compared with the California median for internists, 2024
- Dr. Elder
- California median
- Medicare services
- 11vs 36197% below
- Medicare patients
- 33vs 15178% below
- Part D claims
- 16vs 42196% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Elder'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. Elder?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Elder and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kirsti Ilona Weng Elder treated 33 Medicare patients in 2024, average age 76
CMS counts 33 Medicare patients who saw Dr. Elder in 2024. The largest group is 65 to 74, with 13 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 39% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Elder's median patient age at 43, with 57% women.
Dr. Elder's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Elder's Medicare patients by sex, 2024
- Women1958%
- Men1442%
Chronic conditions among Dr. Elder's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis52%
- Ischemic heart disease42%
- Osteoporosis39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Elder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kirsti Ilona Weng Elder wrote 103 Medicare Part D claims in 2024
In 2024, Dr. Elder wrote 103 Medicare Part D claims for 45 patients. 86% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $52 in total drug cost. In 2023, CMS named 485 claims across 22 drugs.
Dr. Elder's Part D claims by kind of drug, 2024
- Generic89 claims86%
- Brand-name14 claims14%
Dr. Elder'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4852024: 1697%
Drugs named by CMS: 1 in 2024, 22 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. Kirsti Ilona Weng Elder 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. Elder for performance year 2024, reported as part of a group. Dr. Elder accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Elder's 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.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Kirsti Ilona Weng Elder has 1 award and honors on record
Dmand AI lists 1 award for Dr. Elder, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Elder
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Kirsti Ilona Weng Elder graduated from Tulane School of Medicine
Dr. Elder graduated from Tulane School of Medicine in 1985.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Kirsti Ilona Weng Elder accepts plans from 7 insurance carriers
Dr. Elder is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- NV State Medicaid
Plan types Dr. Elder accepts, by number of carriers
- Medicare5
- PPO5
- HMO2
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Kirsti Ilona Weng Elder'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)Clinician Public Reporting: Overall MIPS Performance (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. Kirsti Ilona Weng Elder
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. Kirsti Ilona Weng Elder's NPI number?
Dr. Kirsti Ilona Weng Elder's NPI number is 1689769309. It was assigned on October 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kirsti Ilona Weng Elder?
Dr. Kirsti Ilona Weng Elder is an internist in Stanford, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Kirsti Ilona Weng Elder practice?
Dr. Elder practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Elder's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Elder to 1 hospital and 1 group practice or clinic.
What is Dr. Kirsti Ilona Weng Elder's office phone number?
The practice phone on file for Dr. Elder is (650) 723-4000.
What is Dr. Kirsti Ilona Weng Elder's medical license number?
Dr. Elder's California license number on file is A42867, one of the licenses on file in 2 states.
Which states has Dr. Kirsti Ilona Weng Elder been licensed in?
Dmand AI has state licenses on file for Dr. Elder in California (1986 to 2025) and Louisiana (1985).
Which hospitals is Dr. Kirsti Ilona Weng Elder affiliated with?
Dr. Elder practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Elder to 1 more hospital.
What medical group is Dr. Kirsti Ilona Weng Elder part of?
Dr. Elder is linked to Stanford Health Care.
Does Dr. Kirsti Ilona Weng Elder accept Medicare?
Yes. CMS data shows Dr. Elder billed Medicare for 11 services in 2024, and Dr. Elder accepts Medicare assignment.
What is Dr. Kirsti Ilona Weng Elder's MIPS score?
Dr. Elder's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Kirsti Ilona Weng Elder see?
CMS counts 33 Medicare patients who saw Dr. Elder in 2024, with an average age of 76.
Is Dr. Kirsti Ilona Weng Elder board certified?
Yes. Dr. Elder is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Kirsti Ilona Weng Elder bill to Medicare?
In 2024, Dr. Elder's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Kirsti Ilona Weng Elder go to medical school?
Dr. Elder graduated from Tulane School of Medicine in 1985.
What drugs does Dr. Kirsti Ilona Weng Elder prescribe most?
In 2024 Medicare Part D data, Dr. Elder's most prescribed drugs by claims were Atorvastatin Calcium.
How long has Dr. Kirsti Ilona Weng Elder been practicing?
Dr. Elder graduated from medical school in 1985, 41 years ago.
What insurance does Dr. Kirsti Ilona Weng Elder accept?
Dr. Elder is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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