Nathanael Peter Marsan
Emergency Medicine Physician · Live Oak, TX
Nathanael Peter Marsan is an emergency medicine physician with a practice address in Live Oak, Texas, and NPI 1619331469, issued on Apr 7, 2016. Check the license (Texas S3236, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nathanael Peter Marsan
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- S3236 TX
314356 NY
Self-reported in NPPES; status is on the state search - Practice location
- 12412 Judson RD, Live Oak, TX 78233
- Phone
- (718) 283-6000
- Enumerated
- Apr 7, 2016
- Record last updated
- Mar 15, 2022
- Medicare enrollment
- Enrolled (PECOS I20220322000925); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 2016
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 12412 Judson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roman Avila, MDHospitalist Physician1184249765
- Hanan Ayoub, M.D.Anatomic Pathology & Clinical Pathology Physician1073569778
- Cynthia Annie Boutin, FNP-CFamily Nurse Practitioner1477241651
- Eric Braseth, MDEmergency Medicine Physician1730542549
- Rohit ChauhanPhysician Assistant1255154746
- Juan Chavez, MSN-FNP-BCFamily Nurse Practitioner1447995733
Verify Nathanael Peter Marsan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S3236Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% more Medicare Part D claims than the average emergency medicine physician in 2024
319 Medicare Part D claims for 205 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
Most prescribed
- Ondansetron Odt44 claims
- Cephalexin31 claims
- Oxycodone Hcl21 claims
- Famotidine20 claims
- Dicyclomine Hcl18 claims
- Methocarbamol18 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.
Bills Medicare through 3 group practices
- Bluewater Emergency Partners OF Brunswick, LLCBrattleboro, VT
- Emergency Physician Services OF New York, P.C.Carmel, NY
- Physicians Medical Associates New York PCValhalla, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathanael Peter Marsan among 4,885 emergency medicine physician records in Texas
Nathanael Peter Marsan is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.
- NPI issued2016 · 70% of these records are older, 26% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2016 · median 2013 among the 2,779 with a school on file
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 emergency medicine physician records list a practice address in Live Oak
They are 12 of the 632 NPPES records with a practice address in Live Oak, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Live Oak → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Eric Braseth, MDLive Oak, TX 782331730542549
- Erin De La Cruz, MDLive Oak, TX 782331568840569
- Rathi FahimLive Oak, TX 782331215224860
- Nurani Kester, M.D.Live Oak, TX 782331174546808
- John Leonard, MDLive Oak, TX 782331154741155
- David Liu, MDLive Oak, TX 782331205398328
- Kelsey Lytle, MDLive Oak, TX 782331043873227
- James Ross, MDLive Oak, TX 782331255450656
Common questions
What is Nathanael Peter Marsan's NPI number?
Nathanael Peter Marsan's National Provider Identifier (NPI) is 1619331469, issued on Apr 7, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Nathanael Peter Marsan located?
The NPPES record lists a practice address at 12412 Judson RD, Live Oak, TX, 78233. Phone: (718) 283-6000. Providers update this record themselves, so call before visiting.
How can I verify Nathanael Peter Marsan's license?
NPPES lists Texas license number S3236, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathanael Peter Marsan prescribe under Medicare Part D?
In 2024, Nathanael Peter Marsan had 319 Medicare Part D claims for 205 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.