Stephen Dierdorf, MD
Stephen Dierdorf, MD is a Pediatric Anesthesiology Physician in Indianapolis, IN, registered under NPI 1285742213. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1120 SOUTH DR FESLER HALL RM 204, Indianapolis, IN 46202. 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 |
|---|---|---|
| 01024461A | IN | Pediatric Anesthesiology Physician primary |
| 01024461A | IN | Anesthesiology Physician |
This provider holds licence 01024461A issued in IN. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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.
What Pediatric Anesthesiology covers
An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy. NUCC Health Care Provider Taxonomy, code 207LP3000X
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 | |
|---|---|---|---|---|
| 207LP3000X | Pediatric Anesthesiology Physician Pediatric Anesthesiology | 01024461A | IN | primary |
| 207L00000X | Anesthesiology Physician | 01024461A | IN |
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 | 1285742213 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 29, 2006 |
| Last updated | Dec 4, 2009 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
1120 SOUTH DR FESLER HALL RM 204 Indianapolis, IN 46202 (317) 274-0273 Fax (317) 274-0256 |
| Mailing address |
702 BARNHILL DR Indianapolis, IN 46202 |
| Other identifiers |
100324750
(IN) |
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 | 8 | 5 | 7 | 4 | 2 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 7 | 5 | 5 | 4 | 4 | 2 | 2 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.