Warren Stopak
Warren Stopak is a provider specialising in Medical Biochemical Genetics in Aurora, CO, registered under NPI 1134700016.
Getting there
The practice address on file is 13120 E 19TH AVE, Aurora, CO 80045. 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
- Status
- Approved
- Provider type
- Practitioner - Medical Genetics And Genomics
- PAC ID
- 7618377417
- Enrollment ID
- I20250605003652
Medicare enrolment is recorded as approved under the provider type Practitioner - Medical Genetics And Genomics. 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.
What Medical Biochemical Genetics covers
A medical biochemical geneticist specializes in the diagnosis, evaluation, prevention, and treatment of patients with biochemical genetic disorders, defined as inborn errors of metabolism at any age of onset. Training does not include those skills and knowledge necessary to direct a clinical laboratory. NUCC Health Care Provider Taxonomy, code 207SG0207X
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 | 1134700016 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 21, 2021 |
| Last updated | Jun 15, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
13120 E 19TH AVE Aurora, CO 80045 (301) 801-0813 |
| Mailing address |
2230 HOLLY ST Denver, CO 80207 |
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 | 1 | 3 | 4 | 7 | 0 | 0 | 0 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 6 | 4 | 5 | 0 | 0 | 0 | 2 |
Sum = 44 · next multiple of 10 = 50 · 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.