David Gidseg, M.D.
NPI 1225299712 · Specialist · Smithtown, NY
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Gidseg, M.D. is a Specialist provider in Smithtown, NY (NPI 1225299712).
Provider details
- NPI number
- 1225299712
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 234439 (NY)
Specialties & taxonomies
Other Service Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
10,023 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 2,822 | $149 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 2,276 | $17 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 1,240 | $197 |
| Technetium Tc-99m Tetrofosmin, Diagnostic, Per Study DoseA9502 | 1,106 | $405 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 578 | $514 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision and Review By Physician |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 831 | 360 |
| Metoprolol Succinate | 646 | 289 |
| Atorvastatin Calcium | 615 | 290 |
| Amlodipine Besylate | 495 | 229 |
| Ezetimibe | 286 | 140 |
| Apixabanbrand: Eliquis | 270 | 131 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$876 across 41 records (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
Registry dates
- Enumerated
- 2008-06-18
- Last updated
- 2016-03-30
Frequently asked questions
- What is David Gidseg's NPI number?
- David Gidseg's National Provider Identifier (NPI) is 1225299712, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Gidseg's specialty?
- David Gidseg is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is David Gidseg located?
- David Gidseg's practice location on file with NPPES is 260 Middle Country Rd., Smithtown, NY 11787-2925.
- What is David Gidseg's phone number?
- The practice phone number listed in the NPPES registry for David Gidseg is (631) 265-5050.
- Does David Gidseg accept Medicare?
- David Gidseg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Gidseg's NPI active?
- Yes — David Gidseg's NPI (1225299712) is active in the NPPES registry as of the last update on 2016-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.