Sienna Go, M.D.
NPI 1295759298 · Family Medicine Physician · Costa Mesa, CA
Sienna Go, M.D. is a Family Medicine Physician provider in Costa Mesa, CA (NPI 1295759298).
Provider details
- NPI number
- 1295759298
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A053859 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 21 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 21 |
| Levothyroxine Sodium | 21 |
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
- 2006-07-26
- Last updated
- 2025-12-04
- Certified
- 2025-12-04
Frequently asked questions
- What is Sienna Go's NPI number?
- Sienna Go's National Provider Identifier (NPI) is 1295759298, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sienna Go's specialty?
- Sienna Go is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sienna Go located?
- Sienna Go's practice location on file with NPPES is 1 Mark Ln, Costa Mesa, CA 92626-6718.
- What is Sienna Go's phone number?
- The practice phone number listed in the NPPES registry for Sienna Go is (714) 457-4545.
- Is Sienna Go's NPI active?
- Yes — Sienna Go's NPI (1295759298) is active in the NPPES registry as of the last update on 2025-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.