Joseph Guarnaccia, DO
NPI 1730123811 · Emergency Medicine Physician · Concord, NH
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Guarnaccia, DO is a Emergency Medicine Physician provider in Concord, NH (NPI 1730123811).
Provider details
- NPI number
- 1730123811
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 12260 (NH)
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
417 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 127 | $8 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 105 | $171 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $91 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 61 | $128 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 43 | $118 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 37 | 37 |
| Prednisone | 32 | 31 |
| Azithromycin | 25 | 25 |
| Cephalexin | 24 | 24 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 | 21 |
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
Additional practice locations (1)
- 1 Elliot WayEmergency DepartmentManchester, NH 03103-3502Phone: (603) 663-2830Fax: (603) 663-1849
Registry dates
- Enumerated
- 2006-06-16
- Last updated
- 2022-07-21
- Certified
- 2022-07-21
Frequently asked questions
- What is Joseph Guarnaccia's NPI number?
- Joseph Guarnaccia's National Provider Identifier (NPI) is 1730123811, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Guarnaccia's specialty?
- Joseph Guarnaccia is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Guarnaccia located?
- Joseph Guarnaccia's practice location on file with NPPES is 250 Pleasant St, Concord, NH 03301-2598.
- What is Joseph Guarnaccia's phone number?
- The practice phone number listed in the NPPES registry for Joseph Guarnaccia is (603) 225-2711.
- Does Joseph Guarnaccia accept Medicare?
- Joseph Guarnaccia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Guarnaccia's NPI active?
- Yes — Joseph Guarnaccia's NPI (1730123811) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.