Douglas Barstow, M.D.
NPI 1326166273 · Allergy & Immunology Physician · Austin, TX
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Barstow, M.D. is a Allergy & Immunology Physician provider in Austin, TX (NPI 1326166273).
Provider details
- NPI number
- 1326166273
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- M8520 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,871 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 1,770 | $14 |
| Test for Allergy Using Allergenic Extract95004 | 962 | $4 |
| Professional Service for Multiple Injections of Allergen95117 | 950 | $12 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 484 | $8 |
| Professional Service for Single Injection of Allergen95115 | 375 | $10 |
| Administration and Interpretation of Patient-Focused Health Risk Assessment96160 | 117 | $3 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 80 | 19 |
| Azelastine Hcl | 56 | 28 |
| Montelukast Sodium | 45 | 14 |
| Ipratropium Bromide | 42 | 22 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 36 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 29 | 19 |
| Levocetirizine Dihydrochloride | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,565 across 68 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-27
- Last updated
- 2023-10-31
- Certified
- 2023-10-31
Frequently asked questions
- What is Douglas Barstow's NPI number?
- Douglas Barstow's National Provider Identifier (NPI) is 1326166273, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Barstow's specialty?
- Douglas Barstow is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Barstow located?
- Douglas Barstow's practice location on file with NPPES is 3410 Far West Blvd, Austin, TX 78731-3167.
- What is Douglas Barstow's phone number?
- The practice phone number listed in the NPPES registry for Douglas Barstow is (512) 349-0777.
- Does Douglas Barstow accept Medicare?
- Douglas Barstow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Barstow's NPI active?
- Yes — Douglas Barstow's NPI (1326166273) is active in the NPPES registry as of the last update on 2023-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.