Doctor profile · Federal record

Dr. Nathanael Marsan

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Live Oak, TX

  • NPI 1619331469
  • Accepts Medicare
  • 10 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
12412 Judson RD
Live Oak, TX 782333272
(718) 283-6000
Mailing address
12474 Starcrest Dr Apt 1209
San Antonio, TX 782162966

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
March 15, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
New York #314356 · Texas #S3236

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619331469. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
572
Distinct HCPCS
4
Medicare allowed
$97,200
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 291 273 $191
99284 Emergency department visit with moderate level of medical decision making 159 153 $131
99291 Critical care, first 30-74 minutes 74 71 $229
99283 Emergency department visit with low level of medical decision making 48 48 $78

In context: peer comparison

Among 8 peers in this city , average services per provider: 121. This provider delivers 4.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
276
Patients
260
Total drug cost
$2,301
Drug Type Claims Patients Total cost
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 52 51 $135
Ondansetron Odt (Ondansetron) Brand 48 48 $250
Cephalexin Generic 36 35 $385
Methocarbamol Generic 31 30 $324
Azithromycin Generic 21 20 $140
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 18 18 $371
Famotidine Generic 18 18 $159
Dicyclomine Hcl Generic 16 16 $130
Prednisone Generic 14 13 $30
Doxycycline Hyclate Generic 11 11 $213

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathanael Marsan's medical specialty?
Dr. Nathanael Marsan practices Emergency Medicine Physician in Live Oak, TX.
Where does Dr. Nathanael Marsan practice?
Dr. Nathanael Marsan practices at 12412 Judson RD, Live Oak, TX 782333272. Office phone: 7182836000.
What is Dr. Nathanael Marsan's NPI?
Dr. Nathanael Marsan's National Provider Identifier (NPI) is 1619331469, issued by NPPES.
Does Dr. Nathanael Marsan accept Medicare assignment?
Yes. Dr. Nathanael Marsan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathanael Marsan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.