Madelaine Ryan, NP
NPI 1376298539 · Nurse Practitioner · Stanford, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Madelaine Ryan, NP is a Nurse Practitioner provider in Stanford, CA (NPI 1376298539).
Provider details
- NPI number
- 1376298539
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 60087 (ID)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
4 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
428 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 144 | $52 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 124 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 61 | $62 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 35 | $28 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 26 | $112 |
| Hospital Discharge Day Management, 30 Minutes Or Less |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 463 | 171 |
| Metoprolol Succinate | 379 | 145 |
| Apixabanbrand: Eliquis | 295 | 103 |
| Carvedilol | 222 | 77 |
| Amlodipine Besylate | 202 | 83 |
| Losartan Potassium | 193 | 72 |
| Furosemide | 179 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$572 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-02-16
- Last updated
- 2024-10-29
- Certified
- 2024-10-24
Frequently asked questions
- What is Madelaine Ryan's NPI number?
- Madelaine Ryan's National Provider Identifier (NPI) is 1376298539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Madelaine Ryan's specialty?
- Madelaine Ryan is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Madelaine Ryan located?
- Madelaine Ryan's practice location on file with NPPES is 300 Pasteur Drive, Stanford, CA 94305.
- What is Madelaine Ryan's phone number?
- The practice phone number listed in the NPPES registry for Madelaine Ryan is (650) 723-4000.
- Does Madelaine Ryan accept Medicare?
- Madelaine Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Madelaine Ryan's NPI active?
- Yes — Madelaine Ryan's NPI (1376298539) is active in the NPPES registry as of the last update on 2024-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.