Andrew Haddad, M.D.
Andrew Haddad, M.D. is a Maternal & Fetal Medicine Physician in Hackensack, NJ, registered under NPI 1275974784. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 20 PROSPECT AVE STE 601, Hackensack, NJ 07601. 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 |
|---|---|---|
| 25MA11201000 | NJ | Maternal & Fetal Medicine Physician primary |
| MD044765 | DC | Clinical Genetics (M.D.) Physician |
| MD044765 | DC | Maternal & Fetal Medicine Physician |
Licences are recorded in 2 states: NJ, DC. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Obstetrics/gynecology
- PAC ID
- 8325446487
- Enrollment ID
- I20211005000821
Medicare enrolment is recorded as approved under the provider type Practitioner - Obstetrics/gynecology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: District of Columbia and New Jersey. The practice address on file is in Hackensack, NJ, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- MD044765
- Specialty
- Clinical Genetics (M.D.) Physician
- Licence
- 25MA11201000
- Specialty
- Maternal & Fetal Medicine Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Maternal & Fetal Medicine covers
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies. NUCC Health Care Provider Taxonomy, code 207VM0101X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207VM0101X | Maternal & Fetal Medicine Physician Maternal & Fetal Medicine | 25MA11201000 | NJ | primary |
| 207SG0201X | Clinical Genetics (M.D.) Physician Clinical Genetics (M.D.) | MD044765 | DC | |
| 207VM0101X | Maternal & Fetal Medicine Physician Maternal & Fetal Medicine | MD044765 | DC | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1275974784 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 12, 2013 |
| Last updated | Aug 28, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
20 PROSPECT AVE STE 601 Hackensack, NJ 07601 (551) 996-2765 Fax (201) 487-8516 |
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 | 2 | 7 | 5 | 9 | 7 | 4 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 5 | 5 | 9 | 7 | 8 | 7 | 7 |
Sum = 76 · next multiple of 10 = 80 · check digit = 4 · actual last digit = 4
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.