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KOALAT ANESTHESIA PLLC
NPI 1003523192
Nurse Anesthetist, Certified Registered in San Antonio, TX

Active since October 31, 2022
19010 STONE OAK PKWY, SAN ANTONIO, TX 78258(210) 575-5200 Get Directions Write a Review

NPPES record last updated: December 21, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 21, 2022, Oct 31, 2022 (2 updates tracked since 2022).

About Koalat Anesthesia Pllc NPPES

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

KOALAT ANESTHESIA PLLC (NPI 1003523192) is a healthcare organization registered as a nurse anesthetist, certified registered in San Antonio, Texas and active in the NPI registry since October 2022. The organization maintains a secondary practice location in San Antonio and lists Melissa Ann Waterman, Crna, Owner, as its authorized official.

NPPES Registry Identity

NPI1003523192
Entity TypeOrganization
Primary Taxonomy367500000X
Legal Business NameKOALAT ANESTHESIA PLLC
Location Address19010 STONE OAK PKWYSan Antonio, TX 78258-3225
Mailing Address3301 S 14th St Ste 16180Abilene, TX 79605-5015 · (325) 660-5535
Phone(210) 575-5200
Organization SubpartNo
Authorized OfficialMelissa Ann WatermanCrna, Owner · (325) 660-5535
Enumeration DateOctober 31, 2022
Last NPPES UpdateDecember 21, 20222 updates tracked since enumeration
NPPES CertifiedDecember 21, 2022
✔ NPI 1003523192 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
19010 STONE OAK PKWY, San Antonio, TX 78258
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Secondary Practice Location 1

Location 15255 Prue Rd Ste 100San Antonio, TX 78240-1335 · Phone (210) 614-6059

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)

Koalat Anesthesia Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Koalat Anesthesia PLLC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Brent Duffield, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1013439611
3551 ROGER BROOKE DR
San Antonio, TX 78234
(210) 916-9100
✔ Accepts Medicare12 mi
Melissa Waterman, RN, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1013346733
3551 ROGER BROOKE DR
Jbsa Ft Sam Houston, TX 78234
(570) 574-1992
✔ Accepts Medicare12 mi

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 Koalat Anesthesia PLLC's NPI number?

The NPI number for Koalat Anesthesia PLLC is 1003523192. It was assigned to this organization in the NPPES registry on October 31, 2022.

Where is Koalat Anesthesia PLLC located?

Koalat Anesthesia PLLC is located at 19010 Stone Oak Pkwy, San Antonio, TX 78258. The listed phone number is (210) 575-5200.

What is Koalat Anesthesia PLLC's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Koalat Anesthesia PLLC enrolled in Medicare?

Yes. Koalat Anesthesia PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Koalat Anesthesia PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Certified Registered Nurse Anesthetist (CRNA), reassign their Medicare billing to Koalat Anesthesia PLLC. 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 Koalat Anesthesia PLLC was last updated on December 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.