Andrew Gerson, M.D.
Andrew Gerson, M.D. is a Maternal & Fetal Medicine Physician in Wynnewood, PA, registered under NPI 1972551117.
Getting there
The practice address on file is 100 E LANCASTER AVE 353 MEDICAL OFFICE BUILDING EAST, Wynnewood, PA 19096. 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 |
|---|---|---|
| MD025391E | PA | Maternal & Fetal Medicine Physician primary |
| C1-0002748 | DE | Maternal & Fetal Medicine Physician |
Licences are recorded in 2 states: PA, DE. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 2 states
This provider holds licences in 2 states: Delaware and Pennsylvania. The practice address on file is in Wynnewood, PA, 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
- C1-0002748
- Specialty
- Maternal & Fetal Medicine Physician
- Licence
- MD025391E
- 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 2 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 | MD025391E | PA | primary |
| 207VM0101X | Maternal & Fetal Medicine Physician Maternal & Fetal Medicine | C1-0002748 | DE |
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 | 1972551117 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 4, 2006 |
| Last updated | Jul 8, 2021 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
100 E LANCASTER AVE 353 MEDICAL OFFICE BUILDING EAST Wynnewood, PA 19096 (610) 649-9021 Fax (610) 649-8058 |
| Mailing address |
PO BOX 22581 New York, NY 10087 |
| Other identifiers |
00089479
· Medicaid (PA) 2330386000 · Other (PA) 30018989 · Other (PA) 33659 · Other (PA) 3716959 · Other (PA) 4092784 · Other (PA) 0089479012 · Other (PA) 119891 · Other (PA) 3716980 · Other (PA) 0081118000 · Other (PA) 30018992 · Other (PA) 02640 · Other (PA) 1652891 · Other (PA) 33657 · Other (PA) 33658 · Other (PA) |
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 | 9 | 7 | 2 | 5 | 5 | 1 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 5 | 2 | 1 | 5 | 2 | 1 | 2 |
Sum = 53 · next multiple of 10 = 60 · 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.