Stephanie Tsao, R.N., N.P.
NPI 1841401908 · Nurse Practitioner · San Francisco, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Tsao, R.N., N.P. is a Nurse Practitioner provider in San Francisco, CA (NPI 1841401908).
Provider details
- NPI number
- 1841401908
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R.N., N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 605858 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
48 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 32 | $95 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 16 | $95 |
Typical Medicare-allowed amounts for these services range $95–$95 (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 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 308 | 113 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 245 | 64 |
| Fluticasone Propionate | 134 | 63 |
| Montelukast Sodium | 108 | 36 |
| Levocetirizine Dihydrochloride | 94 | 32 |
| Albuterol Sulfatebrand: Ventolin Hfa | 80 | 28 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-24
- Last updated
- 2009-02-18
Frequently asked questions
- What is Stephanie Tsao's NPI number?
- Stephanie Tsao's National Provider Identifier (NPI) is 1841401908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Tsao's specialty?
- Stephanie Tsao is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephanie Tsao located?
- Stephanie Tsao's practice location on file with NPPES is 1001 Potrero Ave, San Francisco, CA 94110-3518.
- What is Stephanie Tsao's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Tsao is (510) 304-8458.
- Does Stephanie Tsao accept Medicare?
- Stephanie Tsao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Tsao's NPI active?
- Yes — Stephanie Tsao's NPI (1841401908) is active in the NPPES registry as of the last update on 2009-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.