Mary Katherine Negrotto Gunther, PA-C
Physician Assistant · Terrytown, LA
Mary Katherine Negrotto Gunther, PA-C is a physician assistant with a practice address in Terrytown, Louisiana, and NPI 1821401779, issued on Jun 9, 2014. Check the license (Louisiana PA.200695, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Katherine Negrotto Gunther
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA.200695 LA
PA00534 MS
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Belle Chasse Hwy, Terrytown, LA 70056
- Phone
- (504) 392-3131
- Enumerated
- Jun 9, 2014
- Record last updated
- Jul 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid IDs
- 02424756 MS
2370464 LA - Medicare enrollment
- Enrolled (PECOS I20210721004012); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,556 in Louisiana → Look up another NPI →
Also registered at 2500 Belle Chasse Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alyssa Allsop, APRN, NNPNeonatal Nurse Practitioner1487222022
- Dasha Arnold, CRNACertified Registered Nurse Anesthetist1356582332
- Brett Barrilleaux, MDAnesthesiology Physician1619505708
- Aimee Barrois, MSN, APRN, NNP-BCCritical Care Neonatal Nurse Practitioner1033663539
- Charles Belair, CRNACertified Registered Nurse Anesthetist1679500789
- Nicholas Bologna, PA-CPhysician Assistant1467183590
Verify Mary Katherine Negrotto Gunther in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license PA.200695Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average physician assistant in 2024
207 Medicare Part D claims for 143 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Fluticasone Propionate35 claims
- Doxycycline Hyclate24 claims
- Mupirocin21 claims
- Amoxicillin-Clavulanate Potass18 claims
- Methylprednisolone12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $7,888.89
1 payment: consulting fee; the largest payer was Gilead Sciences, Inc. The 64,719 providers of this specialty with any payment received $841.65 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.
Bills Medicare through 2 group practices
- Ochsner Clinic LLCNew Orleans, LA
- Ochsner Mississippi, LLCBay Saint Louis, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Katherine Negrotto Gunther among 1,556 physician assistant records in Louisiana
Mary Katherine Negrotto Gunther, PA-C is one of 1,556 physician assistant records with a practice address in Louisiana. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 31% of them.
- NPI issued2014 · 31% of these records are older, 66% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2013 · median 2018 among the 1,031 with a school on file
- Record last updated2021 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 physician assistant records list a practice address in Terrytown
They are 21 of the 295 NPPES records with a practice address in Terrytown, and 1,556 physician assistant records in Louisiana.
All 1,556 in Louisiana → Every provider in Terrytown → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Genevieve Comfort, PAGretna, LA 700561518390376
- Auriel Hulin-Atwater, PA-CTerrytown, LA 700561205442613
- Leslie Manuel, PA-CTerrytown, LA 700561013318351
- Nicole Mae Mercado, PA-CTerrytown, LA 700561851848063
- Marie Mussman, PA-CGretna, LA 700561952071102
- Alan Nguyen, PA-CTerrytown, LA 700561336628692
- Jamie Park, PA-CGretna, LA 700561033445663
- Stephanie RoubionGretna, LA 700561710410857
Common questions
What is Mary Katherine Negrotto Gunther, PA-C's NPI number?
Mary Katherine Negrotto Gunther, PA-C's National Provider Identifier (NPI) is 1821401779, issued on Jun 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Mary Katherine Negrotto Gunther, PA-C located?
The NPPES record lists a practice address at 2500 Belle Chasse Hwy, Terrytown, LA, 70056. Phone: (504) 392-3131. Providers update this record themselves, so call before visiting.
How can I verify Mary Katherine Negrotto Gunther, PA-C's license?
NPPES lists Louisiana license number PA.200695, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Katherine Negrotto Gunther, PA-C prescribe under Medicare Part D?
In 2024, Mary Katherine Negrotto Gunther, PA-C had 207 Medicare Part D claims for 143 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.