Stephanie Sisneros, PA-C
NPI 1356397970 · Physician Assistant · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Sisneros, PA-C is a Physician Assistant provider in Mission Viejo, CA (NPI 1356397970).
Provider details
- NPI number
- 1356397970
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- License
- PA17178 (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
20 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
368 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) |
|---|---|---|
| Acupuncture With Electrical Stimulation, Each Additional 15 Minutes97814 | 210 | $33 |
| Acupuncture With Electrical Stimulation, Initial 15 Minutes97813 | 107 | $41 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $83 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 16 | $102 |
Typical Medicare-allowed amounts for these services range $33–$102 (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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Trazodone Hcl | 15 |
| Fluoxetine Hcl | 13 |
| Gabapentin | 13 |
| Sertraline Hcl | 13 |
| Aripiprazole | 11 |
| Lorazepam | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephanie Sisneros's NPI number?
- Stephanie Sisneros's National Provider Identifier (NPI) is 1356397970, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Sisneros's specialty?
- Stephanie Sisneros is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephanie Sisneros located?
- Stephanie Sisneros's practice location on file with NPPES is 26302 La Paz Rd, Mission Viejo, CA 92691-5313.
- What is Stephanie Sisneros's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Sisneros is (949) 768-3643.
- Does Stephanie Sisneros accept Medicare?
- Stephanie Sisneros is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Sisneros's NPI active?
- Yes — Stephanie Sisneros's NPI (1356397970) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.