DONALD J PORTOCARRERO D O INC
NPI 1144824285
Internal Medicine - Gastroenterology in Arcadia, CA

Q: What is Donald J Portocarrero D O Inc's NPI number?

The NPI number for Donald J Portocarrero D O Inc is 1144824285. It was assigned to this organization in the NPPES registry on November 30, 2020.

Q: What is Donald J Portocarrero D O Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since November 30, 2020

623 W DUARTE RD STE 8, ARCADIA, CA 91007(626) 461-5408(626) 461-5436 Get Directions Write a Review

NPPES record last updated: March 14, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 6, 2021, Mar 26, 2021, Nov 30, 2020 (3 updates tracked since 2020).

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About Donald J Portocarrero D O Inc NPPES

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

DONALD J PORTOCARRERO D O INC (NPI 1144824285) is a healthcare organization registered as a gastroenterology in Arcadia, California and active in the NPI registry since November 2020. The organization lists Donald J Portocarrero, Authorized Official, as its authorized official.

NPPES Registry Identity

NPI1144824285

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameDONALD J PORTOCARRERO D O INC

Location Address623 W DUARTE RD STE 8Arcadia, CA 91007-7349

Mailing Address122a E Foothill Blvd Unit 304Arcadia, CA 91006-2505 · (626) 461-5408 · Fax (626) 461-5436

Phone(626) 461-5408

Fax(626) 461-5436

Organization SubpartNo

Authorized OfficialDonald J PortocarreroAuthorized Official · (626) 461-5408

Enumeration DateNovember 30, 2020

Last NPPES UpdateMarch 14, 20243 updates tracked since enumeration

NPPES CertifiedMarch 14, 2024

✔ NPI 1144824285 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

623 W DUARTE RD STE 8, Arcadia, CA 91007

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Donald J Portocarrero D O Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Donald J Portocarrero D O Inc, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Patricia De La Rocha, NP

Nurse Practitioner

NPI 1194580845

623 W DUARTE RD STE 8
Arcadia, CA 91007

(626) 461-5408

✔ PECOSSame address

Donald Portocarrero, D.O.

Internal Medicine

NPI 1841503570

623 W DUARTE RD STE 8
Arcadia, CA 91007

(626) 461-5408

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Donald J Portocarrero D O Inc's NPI number?

The NPI number for Donald J Portocarrero D O Inc is 1144824285. It was assigned to this organization in the NPPES registry on November 30, 2020.

Where is Donald J Portocarrero D O Inc located?

Donald J Portocarrero D O Inc is located at 623 W Duarte Rd Ste 8, Arcadia, CA 91007. The listed phone number is (626) 461-5408.

What is Donald J Portocarrero D O Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Donald J Portocarrero D O Inc enrolled in Medicare?

Yes. Donald J Portocarrero D O Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Donald J Portocarrero D O Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Donald J Portocarrero D O Inc, in Internal Medicine and Nurse Practitioner. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Donald J Portocarrero D O Inc was last updated on March 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.