Richard Perrin, MD
Richard Perrin, MD is a Neuropathology Physician in Saint Louis, MO, registered under NPI 1013037167.
Getting there
The practice address on file is 1 BARNES JEWISH HOSPITAL PLZ DIV PA ANATOMIC AND MOLECULAR PATH, Saint Louis, MO 63110. 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 |
|---|---|---|
| 2009001464 | MO | Neuropathology Physician primary |
This provider holds licence 2009001464 issued in MO. 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 Neuropathology covers
A neuropathologist is expert in the diagnosis of diseases of the nervous system and skeletal muscles and functions as a consultant primarily to neurologists and neurosurgeons. The neuropathologist is knowledgeable in the infirmities of humans as they affect the nervous and neuromuscular systems, be they degenerative, infectious, metabolic, immunologic, neoplastic, vascular or physical in nature. NUCC Health Care Provider Taxonomy, code 207ZN0500X
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 | 1013037167 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 30, 2007 |
| Last updated | Apr 17, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
1 BARNES JEWISH HOSPITAL PLZ DIV PA ANATOMIC AND MOLECULAR PATH Saint Louis, MO 63110 (314) 362-5641 Fax (314) 362-0369 |
| Mailing address |
PO BOX 7412011 Chicago, IL 60674 |
| Other identifiers |
207549106
(MO) |
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 | 0 | 1 | 3 | 0 | 3 | 7 | 1 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 2 | 3 | 0 | 3 | 5 | 1 | 3 |
Sum = 43 · next multiple of 10 = 50 · 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.