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Dermatology

Ronald J. Ressmann, MD

Sees patients in San Antonio, TX · Texas

Summary

Ronald J. Ressmann, MD (Dermatology) is enrolled with Medicare at 2 practice locations in San Antonio, TX. NPI 1871593335. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(210) 654‑6921 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Ronald J. Ressmann, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

2Practice locations
DermatologyPrimary specialty
YesAccepts Medicare assignment
55Years since medical school (graduated 1971)
University Of Texas Medical Branch At GalvestonMedical school
MaleGender (as listed)

Quick answers

Where does Ronald J. Ressmann see patients?
Medicare's clinician data lists 2 practice locations, including San Antonio, TX. Call before your visit to confirm the address.
What is Ronald J. Ressmann's specialty?
Medicare lists Dermatology as the primary specialty.
Does Ronald J. Ressmann accept Medicare assignment?
Yes. Medicare's clinician data says Ronald J. Ressmann accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Ronald J. Ressmann?
(210) 654-6921, as listed in official Medicare / NPI Registry data.
What is Ronald J. Ressmann's NPI number?
1871593335. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Ronald J. Ressmann is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Dermatology doctors in Texas →

Other dermatologists in San Antonio

Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.

All dermatologists in San Antonio →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical Branch At Galveston
Graduation year1971
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871593335
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians