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

MR. WILLIAM H NASH III CRNA
NPI 1477860419
Nurse Anesthetist, Certified Registered in Abilene, TX

Active since September 13, 2010PECOS EnrolledAccepts Medicare Assignment
89.92/100
CMS Quality Rating
1900 PINE ST, ABILENE, TX 79601(325) 670-2277 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 10, 2026, May 1, 2024, Sep 9, 2022 and 1 more (4 updates tracked since 2021).

About Mr. William H Nash Iii Crna NPPES

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

MR. WILLIAM H NASH III CRNA (NPI 1477860419) is an individual nurse anesthetist, certified registered in Abilene, Texas, licensed in Texas (1073706) and active in the NPI registry since September 2010. He is enrolled in Medicare PECOS, is affiliated with Baptist Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1477860419
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMR. WILLIAM H NASH IIICredential: CRNA
Location Address1900 PINE STAbilene, TX 79601-2432
Mailing Address4502 Medical DrSan Antonio, TX 78229-4402 · (210) 358-4000 · Fax (210) 358-4775
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateSeptember 13, 2010
Last NPPES UpdateSeptember 10, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2026
✔ NPI 1477860419 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
Licenses✔ Licensed in TX · 1073706✔ Licensed in AZ · 252587✔ Licensed in ME · AA103018
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.
1900 PINE ST, Abilene, TX 79601

Secondary Practice Locations 2

Location 14502 Medical DrSan Antonio, TX 78229-4402 · Phone (210) 358-4000 · Fax (210) 358-4775
Location 235 Medical Center PkwyAugusta, ME 04330-8160 · Phone (207) 622-1959 · Fax (207) 430-4007

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. William H Nash Iii Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5294923710
PECOS Enrollment IDI20220920001419
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.

Medicare Billing Reassignments

6

Medicare enrollment records show William Nash reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Specialist
1900 PINE ST
Abilene, TX 79601
  • Reassigned Medicare billing, Texas enrollment
  • 204 clinicians in this Medicare group
Anesthesiology
2221 LAKESIDE BLVD STE 600
Richardson, TX 75082
  • Reassigned Medicare billing, Arizona enrollment
  • 390 clinicians in this Medicare group
Diagnostic Radiology
25753 OLD FREDERICKSBURG
Boerne, TX 78015
  • Reassigned Medicare billing, Texas enrollment
  • 2,397 clinicians in this Medicare group
Family Medicine
903 W MARTIN ST # MS 49-2
San Antonio, TX 78207
  • Reassigned Medicare billing, Texas enrollment
  • 1,129 clinicians in this Medicare group
Anesthesiology
1500 CITYWEST BLVD, SUITE 300
Houston, TX 77042
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
  • 3,804 clinicians in this Medicare group
Anesthesiology
35 MEDICAL CENTER PARKWAY, STE 201
Augusta, ME 04330
  • Reassigned Medicare billing, Maine enrollment
  • Medicare enrollment name: Kennebec Anesthesia Associates PA
  • 64 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.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baptist Medical Center

Acute Care Hospitals · San Antonio, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450058
Location111 Dallas StreetSan Antonio, TX 78205 · Bexar County
Emergency services Birthing friendly

University Health System

Acute Care Hospitals · San Antonio, TX
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number450213
Location4502 Medical DrSan Antonio, TX 78229 · Bexar County
Emergency services Birthing friendly

Methodist Hospital Stone Oak

Acute Care Hospitals · San Antonio, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number670055
Location1139 E Sonterra Blvd,San Antonio, TX 78258 · Bexar County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 79601 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

89.92/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.39
Promoting Interoperability100
Improvement Activities40
Cost62.89

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.

Physician Assistant
1900 PINE ST
ABILENE, TX 79601
Nurse Practitioner
1900 PINE ST
ABILENE, TX 79601
Physician Assistant
1900 PINE ST
ABILENE, TX 79601
Nurse Anesthetist, Certified Registered
1900 PINE ST
ABILENE, TX 79601
Nurse Anesthetist, Certified Registered
1900 PINE ST
ABILENE, TX 79601
Nurse Anesthetist, Certified Registered
1900 PINE ST
ABILENE, TX 79601
Nurse Anesthetist, Certified Registered
1900 PINE ST
ABILENE, TX 79601
Internal Medicine
1900 PINE ST
ABILENE, TX 79601

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 William Nash's NPI number?

The NPI number for William Nash is 1477860419. It was assigned to this individual provider in the NPPES registry on September 13, 2010.

Where is William Nash located?

William Nash practices at 1900 Pine St, Abilene, TX 79601. The listed phone number is (325) 670-2277.

What is William Nash's specialty?

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

Is William Nash enrolled in Medicare?

Yes. William Nash is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for William Nash's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Nash reassigns Medicare benefits to 6 organizations: Hendrick Anesthesia Network (Abilene, TX), Anesthesia Partners Of Arizona LLC (Richardson, TX), University Of Texas Health Science Center At San Antonio (Boerne, TX), Community Medicine Associates (San Antonio, TX), U. S. Anesthesia Partners Of Texas, P.A., (Houston, TX) and 1 more organization, 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 William Nash's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Nash accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 6 other insurers list William Nash 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 William Nash affiliated with any hospitals?

According to CMS data, William Nash is affiliated with Baptist Medical Center, University Health System and Methodist Hospital Stone Oak.

When was this NPI record last updated?

The NPPES record for William Nash was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 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.