Gerald Mehalick, D.O.
NPI 1689791097 · Psychiatry Physician · Wilmington, DE
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerald Mehalick, D.O. is a Psychiatry Physician provider in Wilmington, DE (NPI 1689791097).
Provider details
- NPI number
- 1689791097
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- C2-0005837 (DE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 223 | 21 |
| Omeprazole | 203 | 17 |
| Olanzapine | 156 | — |
| Metformin Hcl | 142 | 12 |
| Gabapentin | 138 | 12 |
| Quetiapine Fumarate | 136 | — |
| Benztropine Mesylate | 130 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$106 across 5 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
- 2007-03-23
- Last updated
- 2023-03-07
Frequently asked questions
- What is Gerald Mehalick's NPI number?
- Gerald Mehalick's National Provider Identifier (NPI) is 1689791097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Mehalick's specialty?
- Gerald Mehalick is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gerald Mehalick located?
- Gerald Mehalick's practice location on file with NPPES is 500 West 10th St, Wilmington, DE 19801.
- What is Gerald Mehalick's phone number?
- The practice phone number listed in the NPPES registry for Gerald Mehalick is (302) 328-3330.
- Does Gerald Mehalick accept Medicare?
- Gerald Mehalick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerald Mehalick's NPI active?
- Yes — Gerald Mehalick's NPI (1689791097) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.