Adelaida Alfiler, MD
NPI 1396047429 · Internal Medicine Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adelaida Alfiler, MD is a Internal Medicine Physician provider in Oakland, CA (NPI 1396047429).
Provider details
- NPI number
- 1396047429
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A114636 (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
15 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
17 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 17 | $140 |
Typical Medicare-allowed amounts for these services range $140–$140 (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 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 361 | 163 |
| Amlodipine Besylate | 297 | 140 |
| Fluticasone Propionate | 219 | 106 |
| Losartan Potassium | 218 | 102 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 157 | 62 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 157 | 78 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-11-22
- Last updated
- 2021-12-14
Frequently asked questions
- What is Adelaida Alfiler's NPI number?
- Adelaida Alfiler's National Provider Identifier (NPI) is 1396047429, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adelaida Alfiler's specialty?
- Adelaida Alfiler is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Adelaida Alfiler located?
- Adelaida Alfiler's practice location on file with NPPES is 1411 E 31st St, Oakland, CA 94602-1018.
- What is Adelaida Alfiler's phone number?
- The practice phone number listed in the NPPES registry for Adelaida Alfiler is (510) 437-4800.
- Does Adelaida Alfiler accept Medicare?
- Adelaida Alfiler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adelaida Alfiler's NPI active?
- Yes — Adelaida Alfiler's NPI (1396047429) is active in the NPPES registry as of the last update on 2021-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.