Brian Guercio, MD
NPI 1881985638 · Emergency Medicine Physician · Billings, MT
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Guercio, MD is a Emergency Medicine Physician provider in Billings, MT (NPI 1881985638).
Provider details
- NPI number
- 1881985638
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MED-PHYS-LIC-41626 (MT)
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
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 |
|---|---|---|
| Prednisone | 21 | 20 |
| Ondansetronbrand: Ondansetron Odt | 14 | 14 |
| Oxycodone Hcl | 14 | 13 |
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
Additional practice locations (2)
- 1 Boston Medical Ctr PlDowling 1 South- Rm 1322Boston, MA 02118-2908Phone: (617) 414-4929
- 1 Boston Medical Ctr PlDowling 1 South- Rm 1322Boston, MA 02118-2908Phone: (617) 414-4929
Registry dates
- Enumerated
- 2011-04-27
- Last updated
- 2022-02-10
- Certified
- 2022-02-10
Frequently asked questions
- What is Brian Guercio's NPI number?
- Brian Guercio's National Provider Identifier (NPI) is 1881985638, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Guercio's specialty?
- Brian Guercio is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Guercio located?
- Brian Guercio's practice location on file with NPPES is 2800 10th Ave N, Billings, MT 59101.
- What is Brian Guercio's phone number?
- The practice phone number listed in the NPPES registry for Brian Guercio is (406) 238-2500.
- Does Brian Guercio accept Medicare?
- Brian Guercio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Guercio's NPI active?
- Yes — Brian Guercio's NPI (1881985638) is active in the NPPES registry as of the last update on 2022-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.