Doctor profile · Federal record

Dr. Michael Volz, M.D.

Allergy & Immunology (Internal Medicine) Physician · Allergy & Immunology (Internal Medicine) Physician · Allergy & Immunology (Internal Medicine) Physician · Allergy & Immunology (Internal Medicine) Physician · Austin, TX

  • NPI 1841225430
  • 20 yrs on file
  • Licensed in 4 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
9835 N Lake Creek Pkwy
Austin, TX 787176210
(832) 824-1000
Additional location
5690 Dtc Blvd Ste 150E
Greenwood Village, CO 801113227
(720) 488-9280
fax (720) 488-9274
Additional location
400 E 3Rd St
Duluth, MN 558051951
(218) 786-8364
Mailing address
6621 Fannin St
Houston, TX 770302358

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
May 7, 2024
Specialty taxonomy
207RA0201X — NUCC code
State licenses (4)
Texas #U4125 · Minnesota #72393 · Kansas #04-25391 · Colorado #29227
Medicaid (3)
CO #01292275 · TX #1841225430 · KS #100168600B

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841225430. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
702
Distinct HCPCS
4
Medicare allowed
$26,808
HCPCS Description Services Patients Avg allowed
95165 Professional service for preparation and provision of 1 or more antigens 394 13 $15
95117 Professional service for multiple injections of allergen 148 12 $12
99214 Established patient office or other outpatient visit, 30-39 minutes 139 76 $124
99213 Established patient office or other outpatient visit, 20-29 minutes 21 19 $83

In context: peer comparison

Among 2 peers in this city , average services per provider: 169. This provider delivers 4.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,851
Transactions
6
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 1 $2,000.00
CSL Behring 1 $750.00
Regeneron Healthcare Solutions, Inc. 1 $36.63
AstraZeneca Pharmaceuticals LP 1 $23.18
Takeda Pharmaceuticals U.S.A., Inc. 1 $20.88
ALK-Abello, Inc 1 $20.76

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$2,750
Food and Beverage
$101

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
576
Patients
93
Total drug cost
$133,356
Drug Type Claims Patients Total cost
Montelukast Sodium Generic 148 42 $3,673
Breo Ellipta (Fluticasone/Vilanterol) Brand 58 0 $35,153
Prednisone Generic 53 21 $363
Ceftriaxone (Ceftriaxone Sodium) Brand 52 0 $2,504
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 41 0 $28,543
Cromolyn Sodium Generic 32 0 $10,742
Arnuity Ellipta (Fluticasone Furoate) Brand 28 0 $16,484
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 24 0 $694
Hydroxychloroquine Sulfate Generic 22 0 $1,021
Fluticasone-Salmeterol (Fluticasone Propion/Salmeterol) Brand 21 0 $8,604

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Volz's medical specialty?
Dr. Michael Volz practices Allergy & Immunology (Internal Medicine) Physician in Austin, TX.
Where does Dr. Michael Volz practice?
Dr. Michael Volz practices at 9835 N Lake Creek Pkwy, Austin, TX 787176210. Office phone: 8328241000.
What is Dr. Michael Volz's NPI?
Dr. Michael Volz's National Provider Identifier (NPI) is 1841225430, issued by NPPES.
What procedures does Dr. Michael Volz commonly perform?
Top Medicare-reported procedures in 2023: Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Professional service for multiple injections of allergen (HCPCS 95117); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.