Sierra Pena, MD
NPI 1962573964 · Family Medicine Physician · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sierra Pena, MD is a Family Medicine Physician provider in San Luis Obispo, CA (NPI 1962573964).
Provider details
- NPI number
- 1962573964
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD00039993 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
116 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $121 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 28 | $120 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 20 | $16 |
| Admn Sarscov2 Vacc 1 Dose90480 | 16 | $41 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 16 | $85 |
Typical Medicare-allowed amounts for these services range $16–$121 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 131 | 44 |
| Atorvastatin Calcium | 71 | 31 |
| Losartan Potassium | 70 | 29 |
| Levothyroxine Sodium | 64 | 25 |
| Amlodipine Besylate | 55 | 24 |
| Lisinopril | 53 | 19 |
| Gabapentin |
Practice location
Mailing address
Additional practice locations (2)
- 1250 Peach St Ste aSan Luis Obispo, CA 93401-2871Phone: (805) 543-4043Fax: (805) 543-7640
- 3400 California Ave SwSuite 300Seattle, WA 98116-3307Phone: (206) 320-3399Fax: (206) 320-5506
Registry dates
- Enumerated
- 2006-11-13
- Last updated
- 2025-02-27
- Certified
- 2025-02-27
Frequently asked questions
- What is Sierra Pena's NPI number?
- Sierra Pena's National Provider Identifier (NPI) is 1962573964, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Pena's specialty?
- Sierra Pena is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sierra Pena located?
- Sierra Pena's practice location on file with NPPES is 1250 Peach St Ste B, San Luis Obispo, CA 93401-2869.
- What is Sierra Pena's phone number?
- The practice phone number listed in the NPPES registry for Sierra Pena is (805) 543-4043.
- Does Sierra Pena accept Medicare?
- Sierra Pena is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sierra Pena's NPI active?
- Yes — Sierra Pena's NPI (1962573964) is active in the NPPES registry as of the last update on 2025-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.