1. Home
  2. Directory
  3. California
  4. Antioch
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ZENEN TAN ALPUERTO MD
NPI 1548215478
Internal Medicine in Antioch, CA

Active since May 22, 2006PECOS Enrolled
4758 BELFORD PEAK CT, ANTIOCH, CA 94531(707) 423-7342(707) 423-5058 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Zenen Tan Alpuerto Md NPPES

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

ZENEN TAN ALPUERTO MD (NPI 1548215478) is an individual internal medicine provider in Antioch, California, licensed in California (A51647) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1548215478
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameZENEN TAN ALPUERTOCredential: MD
Location Address4758 BELFORD PEAK CTAntioch, CA 94531-8337
Mailing Address4758 Belford Peak CtAntioch, CA 94531-8337 · (707) 423-7342 · Fax (707) 423-5058
Phone(707) 423-7342
Fax(707) 423-5058
Sole ProprietorNo
Enumeration DateMay 22, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1548215478 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 · A51647
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.
4758 BELFORD PEAK CT, Antioch, CA 94531
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Zenen Tan Alpuerto Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94531 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.

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 Zenen Alpuerto's NPI number?

The NPI number for Zenen Alpuerto is 1548215478. It was assigned to this individual provider in the NPPES registry on May 22, 2006.

Where is Zenen Alpuerto located?

Zenen Alpuerto practices at 4758 Belford Peak Ct, Antioch, CA 94531. The listed phone number is (707) 423-7342.

What is Zenen Alpuerto's specialty?

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

Is Zenen Alpuerto enrolled in Medicare?

Yes. Zenen Alpuerto is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Zenen Alpuerto was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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.