Shanti Leon Guerrero, MD/MPH
NPI 1386033090 · Family Medicine Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shanti Leon Guerrero, MD/MPH is a Family Medicine Physician provider in Oakland, CA (NPI 1386033090).
Provider details
- NPI number
- 1386033090
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD/MPH
- Sex
- Female
- Sole proprietor
- No
- License
- A155088 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 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
22 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 22 | $4 |
Typical Medicare-allowed amounts for these services range $4–$4 (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 |
|---|---|---|
| Atorvastatin Calcium | 102 | 32 |
| Metformin Hcl | 64 | 20 |
| Amlodipine Besylate | 63 | 18 |
| Lisinopril | 44 | 14 |
| Fluticasone Propionate | 37 | 13 |
| Gabapentin | 36 | 11 |
| Losartan Potassium | 29 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-01-19
- Last updated
- 2023-03-29
- Certified
- 2023-03-29
Frequently asked questions
- What is Shanti Leon Guerrero's NPI number?
- Shanti Leon Guerrero's National Provider Identifier (NPI) is 1386033090, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shanti Leon Guerrero's specialty?
- Shanti Leon Guerrero is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Shanti Leon Guerrero located?
- Shanti Leon Guerrero's practice location on file with NPPES is 3451 E 12th St, Oakland, CA 94601-3463.
- What is Shanti Leon Guerrero's phone number?
- The practice phone number listed in the NPPES registry for Shanti Leon Guerrero is (510) 535-3500.
- Does Shanti Leon Guerrero accept Medicare?
- Shanti Leon Guerrero is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shanti Leon Guerrero's NPI active?
- Yes — Shanti Leon Guerrero's NPI (1386033090) is active in the NPPES registry as of the last update on 2023-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.