John Hellriegel, MD, PHD
John Hellriegel, MD, PHD is an Obstetrics & Gynecology Physician in Buffalo, NY, registered under NPI 1528064136.
Getting there
The practice address on file is 155 LAWN AVE, Buffalo, NY 14207. 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 |
|---|---|---|
| 137338 | NY | Obstetrics & Gynecology Physician primary |
This provider holds licence 137338 issued in NY. 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 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 | 1528064136 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 28, 2005 |
| Last updated | Nov 18, 2010 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD, PHD |
| Practice address |
155 LAWN AVE Buffalo, NY 14207 (716) 875-2904 Fax (716) 875-6717 |
| Mailing address |
449 BRANTWOOD RD Amherst, NY 14226 |
| Other identifiers |
0700495
· Other 005027831 · Other 00010075103 · Other |
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 | 5 | 2 | 8 | 0 | 6 | 4 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 4 | 8 | 0 | 6 | 8 | 1 | 6 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
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.