Gregory Demeo, D.O.
Gregory Demeo, D.O. is an Obstetrics & Gynecology Physician in Newark, DE, registered under NPI 1497712657.
Getting there
The practice address on file is 4745 OGLETOWN STANTON RD SUITE 106, Newark, DE 19713. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| C20003423 | DE | Obstetrics & Gynecology Physician primary |
This provider holds licence C20003423 issued in DE. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Obstetrics/gynecology
- PAC ID
- 0345261426
Medicare enrolment is recorded as approved under the provider type Practitioner - Obstetrics/gynecology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Obstetrics & Gynecology covers
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women. NUCC Health Care Provider Taxonomy, code 207V00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1497712657 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 28, 2006 |
| Last updated | Apr 2, 2021 |
| Status | Active |
| Sole proprietor | No |
| Credential | D.O. |
| Practice address |
4745 OGLETOWN STANTON RD SUITE 106 Newark, DE 19713 (302) 454-9800 Fax (302) 454-6446 |
| Mailing address |
4735 OGLETOWN STANTON RD SUITE 1109 Newark, DE 19713 |
| Other identifiers |
056634000
· AMERIHEALTH 4283187 · AETNA F39722 · BLUE CROSS BLUE SHIELD (DE) 304652 · COVENTRY |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 4 | 9 | 7 | 7 | 1 | 2 | 6 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 9 | 7 | 5 | 1 | 4 | 6 | 1 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.