Gregory Hadden, MD
NPI 1699733204 · Emergency Medicine Physician · Austin, TX
Gregory Hadden, MD is a Emergency Medicine Physician provider in Austin, TX (NPI 1699733204).
Provider details
- NPI number
- 1699733204
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- M1124 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 53 | 53 |
| Levocetirizine Dihydrochloride | 37 | 37 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 | 16 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-03
- Last updated
- 2008-04-04
Frequently asked questions
- What is Gregory Hadden's NPI number?
- Gregory Hadden's National Provider Identifier (NPI) is 1699733204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Hadden's specialty?
- Gregory Hadden is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Hadden located?
- Gregory Hadden's practice location on file with NPPES is 720 W 34th St, Austin, TX 78705-1205.
- What is Gregory Hadden's phone number?
- The practice phone number listed in the NPPES registry for Gregory Hadden is (512) 452-8533.
- Is Gregory Hadden's NPI active?
- Yes — Gregory Hadden's NPI (1699733204) is active in the NPPES registry as of the last update on 2008-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.