What is Siobhan Powell's NPI number?

Siobhan Powell's National Provider Identifier (NPI) is 1538548615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Siobhan Powell's specialty?

Siobhan Powell is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Siobhan Powell located?

Siobhan Powell's practice location on file with NPPES is 4422 Third Ave, Bronx, NY 10457-2594.

What is Siobhan Powell's phone number?

The practice phone number listed in the NPPES registry for Siobhan Powell is (718) 960-9000.

Does Siobhan Powell accept Medicare?

Siobhan Powell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Siobhan Powell's NPI active?

Yes — Siobhan Powell's NPI (1538548615) is active in the NPPES registry as of the last update on 2019-05-03.

IndividualActiveAccepts Medicare

Siobhan Powell, D.O.

NPI 1538548615 · Emergency Medicine Physician · Bronx, NY

Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Siobhan Powell, D.O. is a Emergency Medicine Physician provider in Bronx, NY (NPI 1538548615).

Provider details

NPI number: 1538548615
Entity type: Individual
Primary specialty: Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: D.O.
Sex: Female
Sole proprietor: No
License: S1684 (TX)

Specialties & taxonomies

Emergency Medicine PhysicianPrimary207P00000XLicense S1684 (TX)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(73/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
11 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
7 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
370 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	169	$167
Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010	149	$8
Emergency Department Visit With Moderate Level of Medical Decision Making99284	26	$116
Critical Care, First 30-74 Minutes99291	26	$203

Typical Medicare-allowed amounts for these services range $8–$203 (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 · 11 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Cefdinir	47	46
Dicyclomine Hcl	36	36
Ondansetronbrand: Ondansetron Odt	33	32
Acetaminophen With Codeinebrand: Acetaminophen-Codeine	30	29
Naproxen	28	28
Ibuprofen	26	26
Ciprofloxacin Hcl	17	17
Famotidine	16

Practice location

4422 Third Ave

Bronx, NY 10457-2594

Phone: (718) 960-9000

Street-level locationGet directions

More NY providers

Mailing address

200 Corporate Blvd

Lafayette, LA 70508-3870

Additional practice locations (6)

1625 Medical Center Dr
El Paso, TX 79902-5005
Phone: (915) 747-4000
12101 Edgemere Blvd
El Paso, TX 79938-4746
Phone: (915) 921-6610
Fax: (915) 832-2491
2400 Trawood Dr
El Paso, TX 79936-4168
Phone: (915) 577-8100
2001 N Oregon St
El Paso, TX 79902-3320
Phone: (915) 577-6011
Fax: (915) 577-7064
2001 N Oregon St
El Paso, TX 79902-3320
Phone: (915) 577-6011
Fax: (915) 577-7064
3280 Joe Battle Blvd
El Paso, TX 79938-2622
Phone: (915) 832-2000
Fax: (915) 832-2048

Enumerated: 2015-05-22
Last updated: 2019-05-03

Frequently asked questions

What is Siobhan Powell's NPI number?: Siobhan Powell's National Provider Identifier (NPI) is 1538548615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Siobhan Powell's specialty?: Siobhan Powell is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Siobhan Powell located?: Siobhan Powell's practice location on file with NPPES is 4422 Third Ave, Bronx, NY 10457-2594.
What is Siobhan Powell's phone number?: The practice phone number listed in the NPPES registry for Siobhan Powell is (718) 960-9000.
Does Siobhan Powell accept Medicare?: Siobhan Powell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Siobhan Powell's NPI active?: Yes — Siobhan Powell's NPI (1538548615) is active in the NPPES registry as of the last update on 2019-05-03.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.