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JAMES AARON MARIN M.D.
NPI 1992239966
Emergency Medicine in San Antonio, TX

Active since April 17, 2017PECOS Enrolled
4502 MEDICAL DR, SAN ANTONIO, TX 78229(210) 358-4000 Get Directions Write a Review

NPPES record last updated: February 27, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 27, 2020, Apr 17, 2017 (2 updates tracked since 2017).

About James Aaron Marin M.d. NPPES

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

JAMES AARON MARIN M.D. (NPI 1992239966) is an individual emergency medicine provider in San Antonio, Texas, licensed in Texas (S3708) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1992239966
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameJAMES AARON MARINCredential: M.D.
Location Address4502 MEDICAL DRSan Antonio, TX 78229-4402
Mailing Address7703 Floyd Curl DrSan Antonio, TX 78229-3901 · (210) 567-4292 · Fax (210) 567-0757
Phone(210) 358-4000
Sole ProprietorNo
Enumeration DateApril 17, 2017
Last NPPES UpdateFebruary 27, 20202 updates tracked since enumeration
✔ NPI 1992239966 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in TX · S3708
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License BP10059381 (TX)
4502 MEDICAL DR, San Antonio, TX 78229
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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 (PECOS)

James Aaron Marin M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

7

Medicare enrollment records show James Marin reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Medicine Services Of Tx, PLLC
0.4 mi
Emergency Medicine
7700 FLOYD CURL DR
San Antonio, TX 78229
  • Reassigned Medicare billing, Texas enrollment
  • 1,452 clinicians in this Medicare group
NPI 1245938729 (210) 575-4000
Third Coast Emergency Physicians Southwest PA
7.9 mi
Emergency Medicine
4103 NORTH LOOK 1604 W
San Antonio, TX 78249
  • Reassigned Medicare billing, Texas enrollment
  • 379 clinicians in this Medicare group
NPI 1497793475 (330) 493-4443
Victoria Emergency Partners LLC
69 mi
Emergency Medicine
1110 N SARAH DEWITT DR
Gonzales, TX 78629
  • Reassigned Medicare billing, Texas enrollment
  • 430 clinicians in this Medicare group
NPI 1164770996 (830) 672-7581
Travis County Emergency Physicians PA
74 mi
Emergency Medicine
1201 W 38TH ST
Austin, TX 78705
  • Reassigned Medicare billing, Texas enrollment
  • 1,511 clinicians in this Medicare group
NPI 1962440933 (330) 493-4443
Victoria Emergency Associates LLC
107 mi
Emergency Medicine
506 E SAN ANTONIO ST
Victoria, TX 77901
  • Reassigned Medicare billing, Texas enrollment
  • 153 clinicians in this Medicare group
NPI 1407917164 (361) 575-7441
Concord Medical Group PLLC
341 mi
Emergency Medicine
1602 AVENUE Q
Lubbock, TX 79401
  • Reassigned Medicare billing, Texas enrollment
  • 1,338 clinicians in this Medicare group
NPI 1083630610 (888) 264-0330
Concord Medical Group Of Texas PLLC
341 mi
Emergency Medicine
1602 AVENUE Q
Lubbock, TX 79401
  • Reassigned Medicare billing, Texas enrollment
  • 1,439 clinicians in this Medicare group
NPI 1750790762 (888) 264-0330

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
64 services64 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
53 services53 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78229 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

EDUARDO N. POLLONO MD
Internal Medicine (Cardiovascular Disease)
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Bexar County (210) 358-4000
DR. MAHDIEH IRAN NEJAD PARIZI M.D.
Student in an Organized Health Care Education/Training Program
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Bexar County (210) 358-2015
RICHARD LEE BALLENTINE D.M.D.
Student in an Organized Health Care Education/Training Program
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Bexar County (210) 358-2015
MR. STEVAN REYES PTA
Physical Therapy Assistant
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Bexar County (210) 358-4253
MRS. CLAIRE LELEUX BEADLE CRNA
Nurse Anesthetist, Certified Registered
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Bexar County (210) 358-4000
NNENNA AWAGU CRNA
Nurse Anesthetist, Certified Registered
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Bexar County (210) 567-4500
DR. CYNTHIA N NGUYEN PHARMD
Pharmacist
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Bexar County (210) 743-4034
DR. JONATHAN EDWARD SLOVIK MD
Hospitalist
4502 MEDICAL DR
SAN ANTONIO, TX 78229
Bexar County (210) 358-4000

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 James Marin's NPI number?

The NPI number for James Marin is 1992239966. It was assigned to this individual provider in the NPPES registry on April 17, 2017.

Where is James Marin located?

James Marin practices at 4502 Medical Dr, San Antonio, TX 78229. The listed phone number is (210) 358-4000.

What is James Marin's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is James Marin enrolled in Medicare?

Yes. James Marin is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Marin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Marin reassigns Medicare benefits to 7 organizations: Emergency Medicine Services Of Tx, PLLC (San Antonio, TX), Third Coast Emergency Physicians Southwest PA (San Antonio, TX), Victoria Emergency Partners LLC (Gonzales, TX), Travis County Emergency Physicians PA (Austin, TX), Victoria Emergency Associates LLC (Victoria, TX) and 2 more organizations, listed in the Medicare section above. 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 James Marin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Marin accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Imperial Insurance Companies, Inc. and Molina Healthcare and 4 other insurers list James Marin 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.

When was this NPI record last updated?

The NPPES record for James Marin was last updated on February 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.