Duane Penshorn, MD
NPI 1235221771 · Emergency Medicine Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duane Penshorn, MD is a Emergency Medicine Physician provider in San Antonio, TX (NPI 1235221771).
Provider details
- NPI number
- 1235221771
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- M9573 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
247 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 88 | $178 |
| Critical Care, First 30-74 Minutes99291 | 87 | $213 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 72 | $122 |
Typical Medicare-allowed amounts for these services range $122–$213 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 71 | 70 |
| Tramadol Hcl | 69 | 68 |
| Ibuprofen | 38 | 38 |
| Methocarbamol | 27 | 27 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 | 21 |
| Cephalexin | 19 | 19 |
| Cefuroxime Axetilbrand: Cefuroxime | 16 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-29
- Last updated
- 2021-12-14
- Certified
- 2021-12-14
Frequently asked questions
- What is Duane Penshorn's NPI number?
- Duane Penshorn's National Provider Identifier (NPI) is 1235221771, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duane Penshorn's specialty?
- Duane Penshorn is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Duane Penshorn located?
- Duane Penshorn's practice location on file with NPPES is 8401 Datapoint Dr Ste 500, San Antonio, TX 78229-5907.
- What is Duane Penshorn's phone number?
- The practice phone number listed in the NPPES registry for Duane Penshorn is (210) 614-0180.
- Does Duane Penshorn accept Medicare?
- Duane Penshorn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duane Penshorn's NPI active?
- Yes — Duane Penshorn's NPI (1235221771) is active in the NPPES registry as of the last update on 2021-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.