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MR. JUSTIN ROGER GRIMES CRNA
NPI 1639592967
Nurse Anesthetist, Certified Registered in San Marcos, TX

Active since January 22, 2014Accepts Medicare Assignment
1305 WONDER WORLD DR, STE 105, SAN MARCOS, TX 78666(512) 353-8161(512) 353-8255 Get Directions Write a Review

NPPES record last updated: October 28, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mr. Justin Roger Grimes Crna NPPES

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

MR. JUSTIN ROGER GRIMES CRNA (NPI 1639592967) is an individual nurse anesthetist, certified registered in San Marcos, Texas, licensed in Texas (744531) and active in the NPI registry since January 2014. He is affiliated with Chi St Lukes Health Memorial Lufkin and is a graduate of Other (2013).

NPPES Registry Identity

NPI1639592967
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMR. JUSTIN ROGER GRIMESCredential: CRNA
Location Address1305 WONDER WORLD DR, STE 105San Marcos, TX 78666-7546
Mailing Address2804 W Biddison StFort Worth, TX 76109-3039 · (806) 928-5053
Phone(512) 353-8161
Fax(512) 353-8255
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateJanuary 22, 2014
Last NPPES UpdateOctober 28, 2014
✔ NPI 1639592967 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
License✔ Licensed in TX · 744531
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.
1305 WONDER WORLD DR, San Marcos, TX 78666
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and more.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. Justin Roger Grimes 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 ID941433585
PECOS Enrollment IDI20140506000160

Medicare Billing Reassignments

4

Medicare enrollment records show Justin Grimes reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Austin Anesthesiology Group, PLLC
38 mi
Anesthesiology
8140 N MOPAC EXPY STE 3-210
Austin, TX 78759
  • Reassigned Medicare billing, Texas enrollment
  • 840 clinicians in this Medicare group
NPI 1598724304 (512) 343-2292
Emergenchealth PLLC
198 mi
Anesthesiology
4100 INTERNATIONAL PLZ STE 800
Fort Worth, TX 76109
  • Reassigned Medicare billing, Texas enrollment
  • 1,612 clinicians in this Medicare group
NPI 1467970897 (972) 861-1270
Grimes Anesthesia, PLLC
216 mi
Nurse Anesthetist, Certified Registered
710 GASLIGHT BLVD STE A
Lufkin, TX 75904
  • Reassigned Medicare billing, Texas enrollment
NPI 1720885197 (806) 928-5053
Youngs Professional Services LLC
369 mi
Nurse Anesthetist, Certified Registered
1100 ANDRE ST, SUITE 300
New Iberia, LA 70563
  • Reassigned Medicare billing, Texas enrollment
  • 282 clinicians in this Medicare group
NPI 1922178599 (337) 364-9225

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 2

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.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
14 services13 patients
Anesthesia for other procedure on urinary system through urethra 00910
Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.
13 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Chi St Lukes Health Memorial Lufkin

Acute Care Hospitals · Lufkin, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450211
Location1201 West Frank StreetLufkin, TX 75901 · Angelina County
Emergency services Birthing friendly

Chi St Lukes Health Memorial Livingston

Acute Care Hospitals · Livingston, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450395
Location1717 Hwy 59 BypassLivingston, TX 77351 · Polk County
Emergency services Birthing friendly

Woodland Heights Medical Center

Acute Care Hospitals · Lufkin, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450484
Location505 South John Redditt DriveLufkin, TX 75904 · Angelina County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78666 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.

Reported Quality Measures

Post-Anesthetic Transfer of Care Measure: Procedure Room to a Post Anesthesia Care Unit (PACU)
Percentage of patients, regardless of age, who are under the care of an anesthesia practitioner and are admitted to a PACU or other non-ICU location in which a post-anesthetic formal transfer of care protocol or checklist which includes the key transfer of…
100%165 patients5/55-star benchmark: 100%
Prevention of Post-Operative Nausea and Vomiting (PONV) - Combination Therapy
Percentage of patients, aged 18 years and older, who undergo a procedure under an inhalational general anesthetic, AND who have three or more risk factors for post-operative nausea and vomiting (PONV), who receive combination therapy consisting of at least…
98%60 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

DR. WILLIAM K DESCHNER M.D.
Internal Medicine (Gastroenterology)
1305 WONDER WORLD DR, SUITE 200
SAN MARCOS, TX 78666
Hays County (512) 754-8676
RX MANAGEMENT CONSULTANTS
Pharmacist
1305 WONDER WORLD DR, STE 102
SAN MARCOS, TX 78666
Hays County (512) 392-6777
WENDELL M HOLLADAY CRNA
Nurse Anesthetist, Certified Registered
1305 WONDER WORLD DR, STE. 105
SAN MARCOS, TX 78666
Hays County (512) 353-8161
DR. CARLOS NEGHME M.D.
Internal Medicine (Gastroenterology)
1305 WONDER WORLD DR, SUITE 200
SAN MARCOS, TX 78666
Hays County (512) 754-8676
BUDA MEDICAL AND SURGICAL CLINIC
Internal Medicine
1305 WONDER WORLD DR, STE 206
SAN MARCOS, TX 78666
Hays County (512) 396-1525
DR. TERESA LYNN IRWIN MD
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
1305 WONDER WORLD DR, SUITE 209
SAN MARCOS, TX 78666
Hays County (512) 396-7575
MS. DEBORAH YOUNG HALL RNC,WHCNP
Nurse Practitioner (Women's Health)
1305 WONDER WORLD DR, SUITE 209
SAN MARCOS, TX 78666
Hays County (512) 396-7575
MRS. CAROL ANN COX GARNER MSN,CS,FNP
Nurse Practitioner (Family)
1305 WONDER WORLD DR, SUITE 209
SAN MARCOS, TX 78666
Hays County (512) 396-7575

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 Justin Grimes's NPI number?

The NPI number for Justin Grimes is 1639592967. It was assigned to this individual provider in the NPPES registry on January 22, 2014.

Where is Justin Grimes located?

Justin Grimes practices at 1305 Wonder World Dr Ste 105, San Marcos, TX 78666. The listed phone number is (512) 353-8161.

What is Justin Grimes's specialty?

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

Is Justin Grimes enrolled in Medicare?

Yes. Justin Grimes 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 Justin Grimes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Justin Grimes reassigns Medicare benefits to 4 organizations: Austin Anesthesiology Group, PLLC (Austin, TX), Emergenchealth PLLC (Fort Worth, TX), Grimes Anesthesia, PLLC (Lufkin, TX) and Youngs Professional Services LLC (New Iberia, LA). 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 Justin Grimes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Justin Grimes accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and Sendero Health Plans, Local Nonprofit list Justin Grimes 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 Justin Grimes affiliated with any hospitals?

According to CMS data, Justin Grimes is affiliated with Chi St Lukes Health Memorial Lufkin, Chi St Lukes Health Memorial Livingston and Woodland Heights Medical Center.

When was this NPI record last updated?

The NPPES record for Justin Grimes was last updated on October 28, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.