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DR. ADELAIDA C ALFILER MD
NPI 1396047429
Internal Medicine in Oakland, CA

Active since November 22, 2010PECOS EnrolledAccepts Medicare Assignment
1411 E 31ST ST, OAKLAND, CA 94602(510) 437-4800 Get Directions Write a Review

NPPES record last updated: December 14, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Adelaida C Alfiler Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ADELAIDA C ALFILER MD (NPI 1396047429) is an individual internal medicine provider in Oakland, California, licensed in California (A114636) and active in the NPI registry since November 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2007).

NPPES Registry Identity

NPI1396047429
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ADELAIDA C ALFILERCredential: MD
Location Address1411 E 31ST STOakland, CA 94602-1018
Mailing Address1411 E 31st StOakland, CA 94602-1018 · (510) 437-4800
Phone(510) 437-4800
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateNovember 22, 2010
Last NPPES UpdateDecember 14, 2021
✔ NPI 1396047429 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A114636
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1411 E 31ST ST, Oakland, CA 94602
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Adelaida C Alfiler Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880851765
PECOS Enrollment IDI20120203000555
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94602 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. YVONNE DIANE ESCARSEGA MSW
Social Worker (Clinical)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4373
MR. JUAN CASILLAS JR. NP
Nurse Practitioner (Family)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4800
SADHANA SAMANT MD
Obstetrics & Gynecology
1411 E 31ST ST, OAKCARE MEDICAL GROUP
OAKLAND, CA 94602
Alameda County (510) 437-4323
PATRICIA SCOTT MEYER PA
Clinical Nurse Specialist (Emergency)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (209) 342-2300
NATHALIE BALOGUN MSW MPH
Social Worker (Clinical)
1411 E 31ST ST, ALAMEDA COUNTY MEDICAL CENTER - MEDICAL SOCAL WORK SRVC
OAKLAND, CA 94602
Alameda County (510) 437-4949
CYNTHIA MARIE ROWDEN RN
Registered Nurse (Ambulatory Care)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4373
DR. KAYLA ENRIQUEZ MD
Emergency Medicine
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4564
DR. CHERYL LIN PARK M.D.
Surgery
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4743

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Adelaida Alfiler's NPI number?

The NPI number for Adelaida Alfiler is 1396047429. It was assigned to this individual provider in the NPPES registry on November 22, 2010.

Where is Adelaida Alfiler located?

Adelaida Alfiler practices at 1411 E 31st St, Oakland, CA 94602. The listed phone number is (510) 437-4800.

What is Adelaida Alfiler's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Adelaida Alfiler enrolled in Medicare?

Yes. Adelaida Alfiler is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Adelaida Alfiler was last updated on December 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.