John Mark Marrs, CRNA
Certified Registered Nurse Anesthetist · Burnet, TX
John Mark Marrs, CRNA is a certified registered nurse anesthetist with a practice address in Burnet, Texas, and NPI 1265530836, issued on Sep 20, 2006. Check the license (Texas 508361, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Mark Marrs
- Credential
- CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License number
- 508361 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3201 S Water St, Burnet, TX 78611
- Phone
- (512) 715-3364
- Enumerated
- Sep 20, 2006
- Record last updated
- Feb 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (512) 406-6505
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 6,097 in Texas → Look up another NPI →
Also registered at 3201 S Water St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Travis Cook, PA-CPhysician Assistant1104284884
- Russell Dubose, CRNACertified Registered Nurse Anesthetist1023057239
- Robert Harding, DOEmergency Medicine Physician1003864158
- Chandra Irvin, APNNurse Practitioner1568520864
- David Lim, D.O.Emergency Medicine Physician1912223660
- Karen Matcek, FNPNurse Practitioner1356651806
Verify John Mark Marrs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 508361Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $278.65
13 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Mark Marrs among 6,097 certified registered nurse anesthetist records in Texas
John Mark Marrs, CRNA is one of 6,097 certified registered nurse anesthetist records with a practice address in Texas. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 71% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 78% of these records are
- Record last updated2010 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 certified registered nurse anesthetist records list a practice address in Burnet
They are 2 of the 103 NPPES records with a practice address in Burnet, and 6,097 certified registered nurse anesthetist records in Texas.
All 6,097 in Texas → Every provider in Burnet → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Russell Dubose, CRNABurnet, TX 786111023057239
- Amelia Hinds, CRNACedar Park, TX 786131225321904
- Andrew HoangCedar Park, TX 786131538639133
- Rachel Knowles, CRNACedar Park, TX 786131295363398
- Thanu Kovoor, CRNACedar Park, TX 786131184519027
- Katelyn Norcia, CRNACedar Park, TX 786131487545331
- Justin Pope, MSNCedar Park, TX 786131326565268
- Stacy Seninger, CRNACedar Park, TX 786131285164467
Common questions
What is John Mark Marrs, CRNA's NPI number?
John Mark Marrs, CRNA's National Provider Identifier (NPI) is 1265530836, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Mark Marrs, CRNA located?
The NPPES record lists a practice address at 3201 S Water St, Burnet, TX, 78611. Phone: (512) 715-3364. Providers update this record themselves, so call before visiting.
How can I verify John Mark Marrs, CRNA's license?
NPPES lists Texas license number 508361, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.