Gerard Davidson, DO
NPI 1689666240 · Family Medicine Physician · Dyer, IN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerard Davidson, DO is a Family Medicine Physician provider in Dyer, IN (NPI 1689666240).
Provider details
- NPI number
- 1689666240
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 02000745A (IN)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,412 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 | 635 | $118 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 243 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 122 | $83 |
| Hemoglobin A1c Level83036 | 115 | $9 |
| Administration of Pneumococcal VaccineG0009 | 72 | $30 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 53 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 109 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 323 | 102 |
| Atorvastatin Calcium | 318 | 106 |
| Rosuvastatin Calcium | 251 | 82 |
| Levothyroxine Sodium | 242 | 77 |
| Losartan Potassium | 231 | 76 |
| Montelukast Sodium | 193 | 88 |
| Alprazolam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$236 across 8 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
- 2005-08-19
- Last updated
- 2023-05-03
- Certified
- 2023-05-03
Frequently asked questions
- What is Gerard Davidson's NPI number?
- Gerard Davidson's National Provider Identifier (NPI) is 1689666240, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerard Davidson's specialty?
- Gerard Davidson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerard Davidson located?
- Gerard Davidson's practice location on file with NPPES is 840 Richard Rd Ste 2, Dyer, IN 46311-1994.
- What is Gerard Davidson's phone number?
- The practice phone number listed in the NPPES registry for Gerard Davidson is (219) 322-1450.
- Does Gerard Davidson accept Medicare?
- Gerard Davidson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerard Davidson's NPI active?
- Yes — Gerard Davidson's NPI (1689666240) is active in the NPPES registry as of the last update on 2023-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.