DR. GREGORY YU MD, PHARMD, MBA, MPH
NPI 1801126735
Emergency Medicine in San Antonio, TX

Q: What is Gregory Yu's NPI number?

The NPI number for Gregory Yu is 1801126735. It was assigned to this individual provider in the NPPES registry on December 24, 2009.

Q: What is Gregory Yu's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Gregory Yu was last updated on November 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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 December 24, 2009PECOS EnrolledAccepts Medicare Assignment

84.05/100

CMS Quality Rating

12314 POTRANCO RD STE 102, SAN ANTONIO, TX 78253(210) 981-3001 Get Directions Write a Review

NPPES record last updated: November 12, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 12, 2025, Jan 21, 2021, Sep 26, 2019 and 1 more (4 updates tracked since 2018).

On this page

About Dr. Gregory Yu Md, Pharmd, Mba, Mph NPPES

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

DR. GREGORY YU MD, PHARMD, MBA, MPH (NPI 1801126735) is an individual emergency medicine provider in San Antonio, Texas, licensed in Texas (S4421) and active in the NPI registry since December 2009. He is enrolled in Medicare PECOS, is affiliated with University Health System, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1801126735

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. GREGORY YUCredential: MD, PHARMD, MBA, MPH

Location Address12314 POTRANCO RD STE 102San Antonio, TX 78253-4125

Mailing Address12314 Potranco Rd Ste 102San Antonio, TX 78253-4125 · (210) 981-3001

Phone(210) 981-3001

Sole ProprietorYes

Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 2017

Enumeration DateDecember 24, 2009

Last NPPES UpdateNovember 12, 20254 updates tracked since enumeration

NPPES CertifiedNovember 12, 2025

✔ NPI 1801126735 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in TX · S4421

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 ListedPharmacistTaxonomy 183500000X · License 47460 (TX)

Also ListedPain Medicine · Interventional Pain MedicineTaxonomy 208VP0014X · License S4421 (TX)

12314 POTRANCO RD STE 102, San Antonio, TX 78253

Open in Google Maps ↗

Secondary Practice Locations 4

Location 14502 Medical DrSan Antonio, TX 78229-4402 · Phone (210) 358-4000

Location 29422 Spring Green BlvdKaty, TX 77494-3810 · Phone (346) 615-0919

Location 31504 Ben Taub LoopHouston, TX 77030 · Phone (713) 873-2000

Location 45282 Medical Dr Ste 180San Antonio, TX 78229-5384 · Phone (210) 450-9850

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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 and accepts Medicare assignment

Dr. Gregory Yu Md, Pharmd, Mba, Mph 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 ID5799016994

PECOS Enrollment IDI20200508000679

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

Medicare enrollment records show Gregory Yu reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Uthscsa Dental School

11 mi

Oral and Maxillofacial Surgery

7703 FLOYD CURL DR
San Antonio, TX 78229

Reassigned Medicare billing, Texas enrollment
Medicare enrollment name: University Of Texas Health Science Center At San Antonio
2,397 clinicians in this Medicare group

NPI 1750403887 (210) 567-3274

Baylor College Of Medicine

202 mi

Internal Medicine

6620 MAIN ST
Houston, TX 77030

Reassigned Medicare billing, Texas enrollment
2,296 clinicians in this Medicare group

NPI 1104867175 (713) 798-2500

Baylor College Of Medicine

202 mi

Medical Genetics, Ph.D. Medical Genetics

7200 CAMBRIDGE ST FL 10
Houston, TX 77030

Reassigned Medicare billing, Texas enrollment
2,554 clinicians in this Medicare group

NPI 1881026664 (713) 798-0000

Medstar Urgent Care, LLC

1,402 mi

Urgent Care

11915 GEORGIA AVE
Wheaton, MD 20902

Reassigned Medicare billing, Maryland enrollment
289 clinicians in this Medicare group

NPI 1871843409 (301) 942-4505

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 3

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.

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

140 services14 patients

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.

23 services23 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

12 services12 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 78253 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.05/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

84.49

Improvement Activities

Cost

54.39

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

COASTAL ER XI, LLC

Clinic/Center (Emergency Care)

12314 POTRANCO RD STE 102
SAN ANTONIO, TX 78253

Bexar County (210) 981-3001

POTRANCO EMERGENCY PHYSICIANS, PLLC

Clinic/Center (Emergency Care)

12314 POTRANCO RD STE 102
SAN ANTONIO, TX 78253

Bexar County (210) 981-3001

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 Gregory Yu's NPI number?

The NPI number for Gregory Yu is 1801126735. It was assigned to this individual provider in the NPPES registry on December 24, 2009.

Where is Gregory Yu located?

Gregory Yu practices at 12314 Potranco Rd Ste 102, San Antonio, TX 78253. The listed phone number is (210) 981-3001.

What is Gregory Yu's specialty?

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

Is Gregory Yu enrolled in Medicare?

Yes. Gregory Yu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Gregory Yu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Yu reassigns Medicare benefits to 4 organizations: Uthscsa Dental School (San Antonio, TX), Baylor College Of Medicine (Houston, TX), Baylor College Of Medicine (Houston, TX) and Medstar Urgent Care, LLC (Wheaton, MD). 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 Gregory Yu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Yu accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 6 other insurers list Gregory Yu 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.

Is Gregory Yu affiliated with any hospitals?

According to CMS data, Gregory Yu is affiliated with University Health System.

When was this NPI record last updated?

The NPPES record for Gregory Yu was last updated on November 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.