Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

RUBEN ALMAGUER M.D., P.A.
NPI 1629273495
Family Medicine in Pasadena, TX

Q: What is Ruben Almaguer M.D., P.A.'s NPI number?

The NPI number for Ruben Almaguer M.D., P.A. is 1629273495. It was assigned to this organization in the NPPES registry on June 20, 2007.

Q: What is Ruben Almaguer M.D., P.A.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Active since June 20, 2007

4102 WOODLAWN AVE STE 100, PASADENA, TX 77504(713) 910-2900(713) 910-2901 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 6, 2026, Oct 2, 2026, Aug 22, 2020 (3 updates tracked since 2020).

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About Ruben Almaguer M.d., P.a. NPPES

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

RUBEN ALMAGUER M.D., P.A. (NPI 1629273495) is a healthcare organization registered as a family medicine in Pasadena, Texas and active in the NPI registry since June 2007. The organization lists Ruben Almaguer, President, as its authorized official.

NPPES Registry Identity

NPI1629273495

Entity TypeOrganization

Primary Taxonomy207Q00000X

Legal Business NameRUBEN ALMAGUER M.D., P.A.

Location Address4102 WOODLAWN AVE STE 100Pasadena, TX 77504-1948

Mailing AddressPo Box 1805Deer Park, TX 77536-1805 · (713) 910-2900 · Fax (713) 910-2901

Phone(713) 910-2900

Fax(713) 910-2901

Organization SubpartNo

Authorized OfficialRuben AlmaguerPresident · (713) 910-2900

Enumeration DateJune 20, 2007

Last NPPES UpdateOctober 6, 20263 updates tracked since enumeration

NPPES CertifiedOctober 6, 2026

✔ NPI 1629273495 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

4102 WOODLAWN AVE STE 100, Pasadena, TX 77504

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ruben Almaguer M.d., P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateTexasEnrollment IDO20040803000134Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Ruben Almaguer M.D., P.A., which bills Medicare for the services this clinician delivers.

Clinician (1)

Ruben Almaguer, M.D.

Family Practice

NPI 1043204886

4102 WOODLAWN AVE STE 100
Pasadena, TX 77504

(713) 910-2900

✔ PECOSSame 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 Ruben Almaguer M.D., P.A.'s NPI number?

The NPI number for Ruben Almaguer M.D., P.A. is 1629273495. It was assigned to this organization in the NPPES registry on June 20, 2007.

Where is Ruben Almaguer M.D., P.A. located?

Ruben Almaguer M.D., P.A. is located at 4102 Woodlawn Ave Ste 100, Pasadena, TX 77504. The listed phone number is (713) 910-2900.

What is Ruben Almaguer M.D., P.A.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Ruben Almaguer M.D., P.A. enrolled in Medicare?

Yes. Ruben Almaguer M.D., P.A. is registered in the Medicare PECOS enrollment system.

When is Ruben Almaguer M.D., P.A.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Ruben Almaguer M.D., P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Ruben Almaguer M.D., P.A.. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Ruben Almaguer M.D., P.A. was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.