DR. ALCARIO SERROS III DO
NPI 1124178793
Internal Medicine in Waco, TX
About Dr. Alcario Serros Iii Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALCARIO SERROS III DO (NPI 1124178793) is an individual internal medicine provider in Waco, Texas, licensed in Texas (N5386) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Saint Rose Dominican Hospitals - North Las Vegas, and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Alcario Serros Iii Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
10Medicare enrollment records show Alcario Serros reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Round Rock, TX 78665
- Reassigned Medicare billing, Texas enrollment
- 89 clinicians in this Medicare group
Round Rock, TX 78681
- Reassigned Medicare billing, Texas enrollment
- 206 clinicians in this Medicare group
Dallas, TX 75231
- Reassigned Medicare billing, Texas enrollment
- 1,208 clinicians in this Medicare group
The Woodlands, TX 77381
- Reassigned Medicare billing, Wisconsin enrollment
- 27 clinicians in this Medicare group
Humble, TX 77338
- Reassigned Medicare billing, Texas enrollment
- 2,009 clinicians in this Medicare group
San Antonio, TX 78232
- Reassigned Medicare billing, Texas enrollment
- 32 clinicians in this Medicare group
San Antonio, TX 78216
- Reassigned Medicare billing, Texas enrollment
- 688 clinicians in this Medicare group
Oklahoma City, OK 73162
- Reassigned Medicare billing, Oklahoma enrollment
- 30 clinicians in this Medicare group
North Las Vegas, NV 89032
- Reassigned Medicare billing, Nevada enrollment
- 33 clinicians in this Medicare group
West Grove, PA 19390
- Reassigned Medicare billing, Pennsylvania enrollment
- 29 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Saint Rose Dominican Hospitals - North Las Vegas
Acute Care Hospitals · North Las Vegas, NVIntegris Community Hospital - Council Crossing
Acute Care Hospitals · Oklahoma City, OKBaylor Emergency Medical Center At Aubrey
Acute Care Hospitals · Aubrey, TXBaptist Neighborhood Hospital Thousand Oaks
Acute Care Hospitals · San Antonio, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 76712 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
WACO, TX 76712
WACO, TX 76712
WACO, TX 76712
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 Alcario Serros's NPI number?
The NPI number for Alcario Serros is 1124178793. It was assigned to this individual provider in the NPPES registry on January 12, 2007.
Where is Alcario Serros located?
Alcario Serros practices at 100 Hillcrest Medical Blvd, Waco, TX 76712. The listed phone number is (254) 202-2000.
What is Alcario Serros's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alcario Serros enrolled in Medicare?
Yes. Alcario Serros is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alcario Serros's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alcario Serros reassigns Medicare benefits to 10 organizations: Austin Critical Care Specialists PA (Round Rock, TX), Lonestar Pat Associates PA (Round Rock, TX), Cogent Healthcare Of Texas, PA (Dallas, TX), Emerus Inpatient Providers Sc (The Woodlands, TX), Hospitalist Medicine Physicians Of Texas, PLLC (Humble, TX) and 5 more organizations, listed in the Medicare section above. Each 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 Alcario Serros's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alcario Serros accept?
Health plans from Blue Cross and Blue Shield of Texas list Alcario Serros as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alcario Serros affiliated with any hospitals?
According to CMS data, Alcario Serros is affiliated with Saint Rose Dominican Hospitals - North Las Vegas, Integris Community Hospital - Council Crossing, Baylor Emergency Medical Center At Aubrey and Baptist Neighborhood Hospital Thousand Oaks.
When was this NPI record last updated?
The NPPES record for Alcario Serros was last updated on September 12, 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.
# Dr. Alcario Serros III, DO · NPI 1124178793
Internal Medicine physician in Waco, Texas. Individual provider, active in the CMS NPPES registry since January 12, 2007.
## Identity
- **NPI:** 1124178793 (Entity type: Individual)
- **Enumerated:** January 12, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** N5386 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 HILLCREST MEDICAL BLVD, Waco, TX 76712-8897
- **Phone:** (254) 202-2000 · **Fax:** (254) 202-5651
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 10 organizations under Medicare reassignment (form CMS-855R): Austin Critical Care Specialists PA (NPI 1548445596, Round Rock, TX); Lonestar Pat Associates PA (NPI 1811594203, Round Rock, TX); Cogent Healthcare Of Texas, PA (NPI 1992722953, Dallas, TX); Emerus Inpatient Providers Sc (NPI 1881365609, The Woodlands, TX); Hospitalist Medicine Physicians Of Texas, PLLC (NPI 1629307095, Humble, TX); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** September 12, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1124178793) · Data from the CMS NPPES public registry.