DR. DENISE R. DAHM M.D.
NPI 1962612028
Internal Medicine - Geriatric Medicine in San Antonio, TX

Active since May 23, 2007PECOS EnrolledAccepts Medicare Assignment
903 W MARTIN ST, SAN ANTONIO, TX 78207(210) 358-3555 Get Directions Write a Review

NPPES record last updated: November 6, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Denise R. Dahm M.d. NPPES

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

DR. DENISE R. DAHM M.D. (NPI 1962612028) is an individual geriatric medicine provider in San Antonio, Texas, licensed in Texas (N3029) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with University Health System, and is a graduate of Washington University School Of Medicine (2005).

NPPES Registry Identity

NPI1962612028
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameDR. DENISE R. DAHMCredential: M.D.
Location Address903 W MARTIN STSan Antonio, TX 78207-0903
Mailing Address7703 Floyd Curl Dr, Mc7977San Antonio, TX 78229-3901 · (210) 450-9000
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 2005
Enumeration DateMay 23, 2007
Last NPPES UpdateNovember 6, 2025
NPPES CertifiedNovember 6, 2025
✔ NPI 1962612028 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in TX · N3029
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
903 W MARTIN ST, San Antonio, TX 78207

Other Names 1

Former Name (1)Dr. Denise R. Flinn M.d.

Other Identifiers 2

Medicaid204131101TX
Other204131102TX · Cshcn

Accepted 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. Denise R. Dahm M.d. 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 ID9032262571
PECOS Enrollment IDI20090731000444
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 Denise Dahm reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinical Pathology/Laboratory Medicine
7703 FLOYD CURL DR RM 327B
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.

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.
77 services54 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.
42 services38 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 78207 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
$166.88 typical visit price
range $54.84 – $166.88
Typical copayment $41.72 (range $13.71 – $41.72)
Most-billed visit code 99205
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
2 suppliers15 claims33 services$6.17 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
1 supplier11 claims11 services$1.03 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Social Worker (Clinical)
903 W MARTIN ST
SAN ANTONIO, TX 78207
Student in an Organized Health Care Education/Training Program
903 W MARTIN ST
SAN ANTONIO, TX 78207
Nurse Practitioner
903 W MARTIN ST
SAN ANTONIO, TX 78207
Student in an Organized Health Care Education/Training Program
903 W MARTIN ST
SAN ANTONIO, TX 78207
Community Health Worker
903 W MARTIN ST
SAN ANTONIO, TX 78207
Student in an Organized Health Care Education/Training Program
903 W MARTIN ST
SAN ANTONIO, TX 78207
Pediatrics
903 W MARTIN ST
SAN ANTONIO, TX 78207
Genetic Counselor, MS
903 W MARTIN ST
SAN ANTONIO, TX 78207

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 Denise Dahm's NPI number?

The NPI number for Denise Dahm is 1962612028. It was assigned to this individual provider in the NPPES registry on May 23, 2007. The provider is also known as Dr. Denise R. Flinn M.D..

Where is Denise Dahm located?

Denise Dahm practices at 903 W Martin St, San Antonio, TX 78207. The listed phone number is (210) 358-3555.

What is Denise Dahm's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Denise Dahm enrolled in Medicare?

Yes. Denise Dahm 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 organization bills Medicare for Denise Dahm's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Denise Dahm reassigns Medicare benefits to 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 Denise Dahm's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Denise Dahm accept?

Health plans from Blue Cross and Blue Shield of Texas, Community First and Imperial Insurance Companies, Inc. list Denise Dahm 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 Denise Dahm affiliated with any hospitals?

According to CMS data, Denise Dahm is affiliated with University Health System.

When was this NPI record last updated?

The NPPES record for Denise Dahm was last updated on November 6, 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.