David Grganto, MD
NPI 1679508766 · Family Medicine Physician · Winfield, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Grganto, MD is a Family Medicine Physician provider in Winfield, IL (NPI 1679508766).
Provider details
- NPI number
- 1679508766
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036084372 (IL)
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
1,865 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 635 | $135 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 332 | $138 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 306 | $17 |
| Removal of Impacted Ear Wax69210 | 136 | $51 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 111 | $190 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 107 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 499 | 152 |
| Levothyroxine Sodium | 362 | 101 |
| Rosuvastatin Calcium | 354 | 113 |
| Amlodipine Besylate | 341 | 101 |
| Lisinopril | 302 | 78 |
| Metoprolol Succinate | 233 | 51 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2013-04-04
Frequently asked questions
- What is David Grganto's NPI number?
- David Grganto's National Provider Identifier (NPI) is 1679508766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Grganto's specialty?
- David Grganto is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Grganto located?
- David Grganto's practice location on file with NPPES is 25 Winfield Road, Winfield, IL 60190-1295.
- What is David Grganto's phone number?
- The practice phone number listed in the NPPES registry for David Grganto is (630) 260-0600.
- Does David Grganto accept Medicare?
- David Grganto is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Grganto's NPI active?
- Yes — David Grganto's NPI (1679508766) is active in the NPPES registry as of the last update on 2013-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.