Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JONATHAN TREJO M.D., M.P.H.
NPI 1528453792
Internal Medicine - Endocrinology, Diabetes & Metabolism in San Antonio, TX

Active since April 03, 2015PECOS Enrolled
8435 WURZBACH RD STE 211, SAN ANTONIO, TX 78229(210) 450-9800(210) 450-2145 Get Directions Write a Review

NPPES record last updated: October 22, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 6, 2025, May 12, 2022, Feb 28, 2022 and 3 more (6 updates tracked since 2019).

About Dr. Jonathan Trejo M.d., M.p.h. NPPES

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

DR. JONATHAN TREJO M.D., M.P.H. (NPI 1528453792) is an individual endocrinology, diabetes & metabolism provider in San Antonio, Texas, licensed in Texas (S5282) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Antonio.

NPPES Registry Identity

NPI1528453792
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. JONATHAN TREJOCredential: M.D., M.P.H.
Location Address8435 WURZBACH RD STE 211San Antonio, TX 78229-3729
Mailing Address8435 Wurzbach Rd Ste 211San Antonio, TX 78229-3729 · (210) 450-9800 · Fax (210) 450-2145
Fax(210) 450-2145
Sole ProprietorNo
Enumeration DateApril 3, 2015
Last NPPES UpdateOctober 22, 20266 updates tracked since enumeration
NPPES CertifiedOctober 22, 2026
✔ NPI 1528453792 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in TX · S5282
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License S5282 (TX)
8435 WURZBACH RD STE 211, San Antonio, TX 78229

Secondary Practice Location 1

Location 17400 Merton Minter StSan Antonio, TX 78229-4404 · Phone (210) 617-5300 ext. 15120

Other Identifiers 1

Medicaid414509601TX

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jonathan Trejo M.d., M.p.h. 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 Reassignment

Medicare enrollment records show Jonathan Trejo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

General Acute Care Hospital
8311 EWING HALSELL DR
San Antonio, TX 78229
  • Reassigned Medicare billing, Texas enrollment
  • 2,397 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
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 9

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

Internal Medicine
8435 WURZBACH RD STE 211
SAN ANTONIO, TX 78229
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8435 WURZBACH RD STE 211
SAN ANTONIO, TX 78229
Internal Medicine
8435 WURZBACH RD STE 211
SAN ANTONIO, TX 78229
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8435 WURZBACH RD STE 211
SAN ANTONIO, TX 78229
Nurse Practitioner (Family)
8435 WURZBACH RD STE 211
SAN ANTONIO, TX 78229
Nurse Practitioner (Family)
8435 WURZBACH RD STE 211
SAN ANTONIO, TX 78229
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8435 WURZBACH RD STE 211
SAN ANTONIO, TX 78229
Internal Medicine
8435 WURZBACH RD STE 211
SAN ANTONIO, TX 78229

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 Jonathan Trejo's NPI number?

The NPI number for Jonathan Trejo is 1528453792. It was assigned to this individual provider in the NPPES registry on April 3, 2015.

Where is Jonathan Trejo located?

Jonathan Trejo practices at 8435 Wurzbach Rd Ste 211, San Antonio, TX 78229. The listed phone number is (210) 450-9800.

What is Jonathan Trejo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Jonathan Trejo enrolled in Medicare?

Yes. Jonathan Trejo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jonathan Trejo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Trejo reassigns Medicare benefits to The University Of Texas Health Science Center At San Antonio (San Antonio, TX). The 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 Jonathan Trejo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jonathan Trejo accept?

Health plans from Antidote Health of TX, Blue Cross and Blue Shield of Texas, Community First, Harbor Health and Imperial Insurance Companies, Inc. list Jonathan Trejo 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 Jonathan Trejo was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.