MARK CHRISTOPHER GWIN FNP
NPI 1942900295
Nurse Practitioner - Family in San Antonio, TX

Q: What is Mark Gwin's NPI number?

The NPI number for Mark Gwin is 1942900295. It was assigned to this individual provider in the NPPES registry on March 6, 2023.

Q: What is Mark Gwin's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Gwin was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.

Active since March 06, 2023PECOS EnrolledAccepts Medicare Assignment

302 W RECTOR ST, SAN ANTONIO, TX 78216(210) 358-0800(210) 358-0850 Get Directions Write a Review

NPPES record last updated: January 9, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jan 9, 2026, Oct 9, 2023, Mar 6, 2023 (3 updates tracked since 2023).

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About Mark Christopher Gwin Fnp NPPES

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

MARK CHRISTOPHER GWIN FNP (NPI 1942900295) is an individual family provider in San Antonio, Texas, licensed in Texas (1124686) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS, is affiliated with University Health System, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1942900295

Entity TypeIndividualMale

Primary Taxonomy363LF0000X

Provider Legal NameMARK CHRISTOPHER GWINCredential: FNP

Location Address302 W RECTOR STSan Antonio, TX 78216-5718

Mailing Address302 W Rector StSan Antonio, TX 78216-5718 · (210) 358-0800 · Fax (210) 702-4301

Phone(210) 358-0800

Fax(210) 358-0850

Sole ProprietorNo

Medical School CMSOtherGraduated 2023

Enumeration DateMarch 6, 2023

Last NPPES UpdateJanuary 9, 20263 updates tracked since enumeration

NPPES CertifiedJanuary 9, 2026

✔ NPI 1942900295 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in TX · 1124686

302 W RECTOR ST, San Antonio, TX 78216

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc., Molina Healthcare and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark Christopher Gwin Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5698136265

PECOS Enrollment IDI20230728001719

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.

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

105 services82 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

19 services18 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Health System

Acute Care Hospitals · San Antonio, TX

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number450213

Location4502 Medical DrSan Antonio, TX 78229 · Bexar County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78216 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.

MRS. PATRICIA KOO

Physician Assistant (Medical)