Madeleine Oster, DNP, NP
- Medicare services, 2024
- 827
- Medicare patients, 2024
- 395
- Part D claims, 2024
- 432
- MIPS score, 2024
- 89
- Hospital affiliations
- 3
- 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 Madeleine Oster'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.
Madeleine Oster is a nurse practitioner in Stanford, California
Madeleine Oster practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Madeleine Oster's NPI, 1023654084, was assigned on November 25, 2019. Madeleine Oster graduated from University of Alabama School of Medicine in 2019. Madeleine Oster holds California license 95013926.
- NPI
- 1023654084NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466873716
- NPI enumeration date
- November 25, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Madeleine Oster practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Madeleine Oster'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
Madeleine Oster is affiliated with 3 sites of care and 2 medical groups
Madeleine Oster's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Madeleine Oster is also affiliated with Stanford Health Care Tri-Valley. The medical group on file is Stanford Health Care. Dmand AI also links Madeleine Oster to 1 more hospital and 1 medical group, each named with a free account. Madeleine Oster'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 Madeleine Oster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Madeleine Oster 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 sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Madeleine Oster is one of 5,983 nurse practitioners in California
Nurse practitioner is Madeleine Oster's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Madeleine Oster is licensed in California.
Specialties and state licenses
- Nurse practitioner, CaliforniaPrimary
Nurse practitioners near Madeleine Oster
Counts of nurse practitioners 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
Madeleine Oster billed Medicare for 827 services in 2024
CMS data shows 827 Medicare services from Madeleine Oster across 10 procedure codes in 2024, for 395 Medicare patients. Medicare paid $69,057 for them.
Madeleine Oster's Medicare services by type, 2024
- Office and hospital visits436
- Other services249
- Tests and treatments127
- Surgery15
Where Madeleine Oster's Medicare services took place, 2024
- In an office70085%
- In a facility12715%
Madeleine Oster compared with the California median for nurse practitioners, 2024
- Madeleine Oster
- California median
- Medicare services
- 827vs 2793.0 times
- Medicare patients
- 395vs 924.3 times
- Part D claims
- 373vs 366Close to median
Medians across 3,047 nurse practitioners in California with Dmand AI profiles that report each measure.
Madeleine Oster'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Madeleine Oster treated 395 Medicare patients in 2024, average age 76
CMS counts 395 Medicare patients who saw Madeleine Oster in 2024. The largest group is 65 to 74, with 158 patients. 75% of them have atrial fibrillation, and 75% have high blood pressure. 25% are also on Medicaid. Their average risk score is 2.13, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Madeleine Oster's median patient age at 69, with 46% women.
Madeleine Oster's Medicare patients by age, 2024
Madeleine Oster's Medicare patients by sex, 2024
- Women17444%
- Men22156%
Chronic conditions among Madeleine Oster's Medicare patients, 2024
- Atrial fibrillation75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease51%
- Heart failure45%
- Arthritis43%
- Chronic kidney disease40%
- Diabetes37%
Share of Medicare patients with each condition. A patient can have several.
Madeleine Oster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women46%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Madeleine Oster wrote 432 Medicare Part D claims in 2024
In 2024, Madeleine Oster wrote 432 Medicare Part D claims for 120 patients. 63% of them were for generic drugs. CMS names the drug for 373 of them, across 10 drugs with 11 or more claims each, at $147,856 in total drug cost.
Madeleine Oster's Part D claims by kind of drug, 2024
- Generic270 claims63%
- Brand-name162 claims38%
Madeleine Oster'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.
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
Madeleine Oster 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 Madeleine Oster for performance year 2024, reported as part of a group. Madeleine Oster accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Madeleine Oster as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Madeleine Oster'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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Madeleine Oster received $332 in industry payments in 2025
CMS Open Payments shows 2 general payments to Madeleine Oster from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. HeartFlow, Inc. paid the most, $192.
Companies that paid Madeleine Oster the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Madeleine Oster graduated from University of Alabama School of Medicine
Madeleine Oster graduated from University of Alabama School of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Madeleine Oster'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Madeleine Oster
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Madeleine Oster's NPI number?
Madeleine Oster's NPI number is 1023654084. It was assigned on November 25, 2019, and it is active in the NPI Registry.
What does Madeleine Oster specialize in?
Madeleine Oster is a nurse practitioner in Stanford, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Madeleine Oster practice?
Madeleine Oster practices at 300 Pasteur Drive, Stanford, CA 94305. Madeleine Oster's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Madeleine Oster to 1 hospital and 1 medical group.
What is Madeleine Oster's office phone number?
The practice phone on file for Madeleine Oster is (650) 723-4000.
What is Madeleine Oster's medical license number?
Madeleine Oster holds California license 95013926.
Which hospitals is Madeleine Oster affiliated with?
Madeleine Oster practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Madeleine Oster is also affiliated with Stanford Health Care Tri-Valley. Dmand AI links Madeleine Oster to 1 more hospital.
What medical group is Madeleine Oster part of?
Madeleine Oster is linked to Stanford Health Care. Dmand AI links Madeleine Oster to 1 more medical group.
Does Madeleine Oster accept Medicare?
Yes. CMS data shows Madeleine Oster billed Medicare for 827 services in 2024, and Madeleine Oster accepts Medicare assignment.
Does Madeleine Oster offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Madeleine Oster as offering telehealth services.
What is Madeleine Oster's MIPS score?
Madeleine Oster's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Madeleine Oster see?
CMS counts 395 Medicare patients who saw Madeleine Oster in 2024, with an average age of 76.
What services does Madeleine Oster bill to Medicare?
In 2024, Madeleine Oster's most billed Medicare services were office visit, established patient (99215), medicare service (G2212) and medicare service (G2211).
Where did Madeleine Oster go to medical school?
Madeleine Oster graduated from University of Alabama School of Medicine in 2019.
What drugs does Madeleine Oster prescribe most?
In 2024 Medicare Part D data, Madeleine Oster's most prescribed drugs by claims were Eliquis, Metoprolol Succinate and Flecainide Acetate.
Has Madeleine Oster received payments from drug or device companies?
CMS Open Payments shows $332 in general payments to Madeleine Oster from 2 companies from 2025 to 2025. The largest total came from HeartFlow, Inc.
How long has Madeleine Oster been practicing?
Madeleine Oster graduated from medical school in 2019, 7 years ago.
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