Shann Mika Ruiz, NP
NPI 1689140139 · Nurse Practitioner · Stanford, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shann Mika Ruiz, NP is a Nurse Practitioner provider in Stanford, CA (NPI 1689140139).
Provider details
- NPI number
- 1689140139
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 95009787 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing 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
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
383 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 260 | $184 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 69 | $132 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 54 | $139 |
Typical Medicare-allowed amounts for these services range $132–$184 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 229 | 64 |
| Abiraterone Acetate | 170 | 38 |
| Relugolixbrand: Orgovyx | 61 | — |
| Axitinibbrand: Inlyta | 43 | — |
| Enzalutamidebrand: Xtandi | 38 | — |
| Darolutamidebrand: Nubeqa | 29 | — |
| Cabozantinib S-Malatebrand: Cabometyx | 27 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$191 across 4 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
Additional practice locations (2)
- 200 Brannan St Apt 135San Francisco, CA 94107-6004Phone: (650) 346-4413
- 200 Brannan St Apt 135San Francisco, CA 94107-6004Phone: (650) 346-4413
Registry dates
- Enumerated
- 2018-10-22
- Last updated
- 2025-12-30
- Certified
- 2025-12-30
Frequently asked questions
- What is Shann Mika Ruiz's NPI number?
- Shann Mika Ruiz's National Provider Identifier (NPI) is 1689140139, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shann Mika Ruiz's specialty?
- Shann Mika Ruiz is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Shann Mika Ruiz located?
- Shann Mika Ruiz's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305.
- What is Shann Mika Ruiz's phone number?
- The practice phone number listed in the NPPES registry for Shann Mika Ruiz is (650) 723-4000.
- Does Shann Mika Ruiz accept Medicare?
- Shann Mika Ruiz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shann Mika Ruiz's NPI active?
- Yes — Shann Mika Ruiz's NPI (1689140139) is active in the NPPES registry as of the last update on 2025-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.